Pistons, Rings, Cylinder Sleeves | Yamaha Outboard

Piston Size & Application

OEM & Cross Reference Piston Family

Yamaha Outboard Fitment

Mercury 115HP EFI Fitment

Other Piston Options

Vertex Standard Piston - 24228STD

Size: 79.00mm Standard

Standard Vertex piston for compatible cylinders that remain within factory bore-size limits.

First OEM: 68V-W1164-02-00

View Vertex Standard Piston

Vertex .010 Oversize Piston - 24228025

Size: .010 / .25mm Oversize

Intermediate oversize Vertex option for cylinders that can be finished at .010 oversize.

First OEM Reference: 60C-W1164-10-00

View Vertex .010 Piston

Wiseco Standard Piston - 3207PS

Size: 79.00mm Standard

Alternate standard-size Wiseco piston for compatible Yamaha F115 and Mercury 115 EFI engine rebuilds.

View Wiseco Standard Piston

Wiseco .020 Oversize Piston - 3207P2

Size: 79.5mm / .020 Oversize

Alternate .020 oversize Wiseco option for cylinders properly machined to the required finished bore.

View Wiseco .020 Piston

Yamaha OEM Piston Ring Options

Yamaha OEM Standard Ring Kit - 11605

Size: Standard 79mm

First OEM: 6D8-11603-00-00

OEM standard ring option for compatible standard-size 79mm pistons.

View Standard OEM Rings

Yamaha OEM .25mm Oversize Ring Kit - 11606

Size: .25mm / approximately .010 Oversize

First OEM: 6D8-11604-00-00

OEM ring option for the corresponding Yamaha .25mm oversize piston configuration.

View .25mm OEM Rings

Replacement Cylinder Sleeves

If cylinder damage cannot be corrected with a .020 overbore, replacement cylinder sleeves may be required.

Advanced Sleeve 1185SC

Straight 4-stroke cylinder sleeve for compatible engine rebuilding.

Verify sleeve dimensions, block bore and finished cylinder requirements before machining.

View 1185SC Sleeve

Advanced Sleeve 1185SA

Alternate replacement cylinder sleeve option for compatible Yamaha / Mercury four-stroke engine rebuilds.

Compare sleeve dimensions with the block before installation.

View 1185SA Sleeve

Main & Connecting Rod Bearings

Pro Marine Main Bearing Set - 4CYLSSMAIN

Complete one-size crankshaft main bearing set for compatible Yamaha four-cylinder engines.

First OEM Reference: 6D8-11416-00-00

Eliminates Yamaha bearing color-code selection and Plastigauge sizing.

View Main Bearing Set

Pro Marine F115 Rod Bearing Set - 4CYLSSROD

Complete one-size connecting rod bearing set for compatible Yamaha F115 applications.

First OEM Reference: 68V-11656-00-00

Eliminates the factory Yamaha bearing color selection process.

View Rod Bearing Set

Complete Powerhead Gasket Kit

Pro Marine Powerhead Gasket Kit - 6803

Complete gasket kit for compatible Yamaha F75-F115 powerhead rebuilds.

Recommended when the engine is disassembled for piston replacement, cylinder machining, bearing service or a complete powerhead rebuild.

OEM Families: 6D8-W0001, 67F-W0001 and 68V-W0001

View Powerhead Gasket Kit

Piston Size Guide

Shop Yamaha Engine Rebuild Parts by Model

Find additional pistons, rings, bearings, valves, gaskets, sleeves and related internal engine components in Pro Marine's Yamaha Engine Rebuild Parts by Model section.

Shop Yamaha Engine Rebuild Parts by Model

When to Use a .020 Oversize Piston

A .020 oversize piston is used when cylinder wear, scoring or damage requires enough machining that the cylinder can no longer remain at standard size or .010 oversize.

Before machining, accurately measure cylinder diameter, taper and out-of-round. The finished bore must provide the correct piston-to-wall clearance for the Vertex piston.

When Should a Cylinder be Sleeved Instead?

If cylinder damage, corrosion or previous machining prevents the bore from being restored at .020 oversize, a replacement cylinder sleeve may be required.

The replacement sleeve is installed and then finished to the correct bore for whichever piston size will be used in the rebuilt engine.

Parts to Inspect During a Powerhead Rebuild

• Cylinder bore diameter
• Cylinder taper and out-of-round
• Piston-to-wall clearance
• Piston rings and ring end gap
• Connecting rods
• Connecting rod bolts
• Connecting rod bearings
• Crankshaft main bearings
• Crankshaft journals
• Cylinder head and valves
• Valve stem seals
• Oil passages and lubrication system
• Powerhead gaskets and seals

Key Features and Benefits

• Vertex oversize piston kit
• Vertex part number 24228050
• .020 / .50mm oversize
• 79.5mm nominal piston size
• Fits extensive Yamaha F115 and LF115 applications
• Fits select Yamaha F75 and F90 applications
• Fits select Mercury 115HP EFI engines
• Vertex standard piston linked above
• Vertex .010 oversize piston linked above
• Wiseco standard and .020 piston alternatives linked above
• Yamaha OEM ring options linked above
• Replacement cylinder sleeves linked above
• Main and connecting rod bearing sets linked above
• Complete powerhead gasket kit linked above

FAQ

What size is Vertex 24228050?
It is a .020 / .50mm oversize piston, approximately 79.5mm.

Is 24228050 a standard-size piston?
No. The standard Vertex piston is the 24228STD 79.00mm piston linked above.

Can I install this piston in a standard cylinder?
No. The cylinder must be properly bored and finished for the .020 oversize piston.

Does this fit Yamaha F115?
Yes. The supplied engine fitment includes extensive Yamaha F115 and LF115 applications.

Does it fit Mercury 115 EFI?
Yes. Supplied Mercury fitment includes 0T178500 thru 0T800999, 0T801000 thru 1B226999, and 1B227000 thru 1B366822.

Do you have a .010 oversize piston?
Yes. The Vertex 24228025 is the .010 / .25mm oversize option.

Do you have another .020 piston option?
Yes. The Wiseco 3207P2 79.5mm piston is an alternate .020 oversize option.

What standard pistons are available?
Pro Marine stocks both the Vertex 24228STD and Wiseco 3207PS standard 79mm pistons.

Are replacement cylinder sleeves available?
Yes. Advanced Sleeve 1185SA and 1185SC options are linked above.

What main bearings are available?
The Pro Marine 4CYLSSMAIN main bearing set is linked above.

What connecting rod bearings are available?
The Pro Marine 4CYLSSROD connecting rod bearing set is linked above.

Is a complete powerhead gasket kit available?
Yes. The Pro Marine 6803 Powerhead Gasket Kit is linked above.

Searchable Terms

24228050, Vertex 24228050, Yamaha F115 .020 piston, Yamaha F115 .50mm piston, Yamaha F115 79.5mm piston, Yamaha F115 oversize piston, Yamaha LF115 .020 piston, Yamaha F90 oversize piston, Mercury 115 EFI .020 piston, Mercury 115 oversize piston, Mercury 115 79.5mm piston, 60C-W1164-00-00, 60C-W1164-01-00, 68V-W1164-00-00, 68V-W1164-01-00, 68V-W1164-02-00, 880895A05, 880895A14, 880895T1, Yamaha 60C-W1164, Yamaha 68V-W1164, Mercury 880895, 24228STD, Vertex standard piston, 24228025, Vertex .010 piston, 3207PS, Wiseco standard piston, 3207P2, Wiseco .020 piston, 11605, Yamaha F115 standard rings, 11606, Yamaha F115 oversize rings, 1185SA, 1185SC, Yamaha F115 cylinder sleeve, 4CYLSSMAIN, Yamaha F115 main bearings, 4CYLSSROD, Yamaha F115 rod bearings, 6803, Yamaha F115 gasket kit, Yamaha F115 engine rebuild, Mercury 115 EFI rebuild

OEM & Cross Reference Numbers

Yamaha Outboard Fitment

.020 Oversize Wiseco Piston Option

Wiseco .020 Oversize Piston Kit - 79.5mm - 3208P2

Oversize Wiseco piston for compatible Yamaha F75, F80, F90 and F100 rebuilds where the cylinder has been machined to 79.5mm / .020 oversize.

OEM References: 6D8-W1164-00-00, 6D8-W1164-30-00, 6D8-W1164-31-00, 67F-11640-00-00

View .020 Oversize Wiseco Piston

Replacement Cylinder Sleeves

If a cylinder is damaged beyond a normal overbore repair, Pro Marine also stocks replacement Advanced Sleeve options for this Yamaha four-stroke engine family.

Advanced Sleeve 1185SC - Straight 4-Stroke Sleeve

Replacement cylinder sleeve for compatible Yamaha four-stroke rebuilds. Pro Marine lists this sleeve with a 3.118" standard bore, 3.310" OD and 5.195" length. :contentReference[oaicite:1]{index=1}

View 1185SC Cylinder Sleeve

Advanced Sleeve 1185SA - Straight 4-Stroke Sleeve

Alternate Advanced Sleeve option. Pro Marine lists this sleeve with a 3.118" bore, 3.270" OD and 5.195" length. :contentReference[oaicite:2]{index=2}

View 1185SA Cylinder Sleeve

Crankshaft & Connecting Rod Bearings

Rebuilding the complete powerhead? Pro Marine stocks one-size main and rod bearing sets for this Yamaha engine family. These bearing sets eliminate Yamaha color-code selection and Plastigauge sizing. :contentReference[oaicite:3]{index=3}

Pro Marine F75-F115 Main Bearing Set - 4CYLSSMAIN

Complete crankshaft main bearing set for compatible Yamaha F75-F115 four-stroke engines.

First OEM Reference: 6D8-11416-00-00

One-size bearing system with no Yamaha color-code selection or Plastigauge sizing required. :contentReference[oaicite:4]{index=4}

View Main Bearing Set

Pro Marine F75-F100 Connecting Rod Bearing Set - F75SSROD

Matching one-size connecting rod bearing set for compatible Yamaha F75, F90 and F100 four-stroke applications.

Designed to eliminate Yamaha color-code selection and Plastigauge bearing sizing. :contentReference[oaicite:5]{index=5}

View Connecting Rod Bearing Set

Complete Powerhead Gasket Kit

Pro Marine Powerhead Gasket Kit - 6803

Complete powerhead gasket kit for compatible Yamaha F75-F115 engine rebuilds.

Recommended when the engine is being fully disassembled for pistons, bearings, cylinder repair or other major internal work.

OEM Families: 6D8-W0001, 67F-W0001 and 68V-W0001

View Powerhead Gasket Kit

Shop Yamaha Engine Rebuild Parts by Model

Need the rest of the components for your rebuild? Use our Yamaha Engine Rebuild Parts by Model section to find pistons, rings, bearings, valves, gaskets, sleeves and related internal engine parts.

What is Included

This listing is for the Wiseco 3208PS standard-size piston kit. Confirm the exact kit contents shown on the product listing before ordering any additional rings, pins, clips or related components separately.

What This Piston is Used For

The piston transfers combustion force through the connecting rod to the crankshaft. It must maintain the correct clearance within the cylinder bore while supporting the piston rings that seal combustion pressure and control engine oil.

During a powerhead rebuild, piston selection should be based on the actual finished cylinder-bore measurement rather than simply replacing the original piston with the same nominal size.

Standard Piston or Oversize Piston?

Parts to Inspect During a Piston Replacement

• Cylinder bore condition and finished bore size
• Piston rings
• Connecting rod bearings
• Connecting rod bolts
• Crankshaft journals
• Crankshaft main bearings
• Cylinder head and valves
• Valve stem seals
• Oil passages and lubrication system
• Powerhead gaskets and seals

Key Features and Benefits

• Wiseco standard-size piston kit
• Wiseco item 3208PS
• 79.00mm standard bore size
• Fits select Yamaha F75 four-stroke engines
• Fits select Yamaha F80 four-stroke engines
• Fits select Yamaha F90 four-stroke engines
• Fits select Yamaha F100 four-stroke engines
• Replaces Yamaha 6D8-W1164-00-00
• Replaces Yamaha 6D8-W1164-30-00
• Replaces Yamaha 6D8-W1164-31-00
• Replaces Yamaha 67F-11640-00-00
• .020 / 79.5mm Wiseco piston option linked above
• Replacement cylinder sleeves linked above
• Matching main and connecting rod bearings linked above
• Complete powerhead gasket kit linked above

FAQ

What size is the Wiseco 3208PS piston?
It is the standard-size 79.00mm piston.

What Yamaha OEM numbers does 3208PS replace?
It cross references 6D8-W1164-00-00, 6D8-W1164-30-00, 6D8-W1164-31-00 and 67F-11640-00-00.

Does this fit Yamaha F75?
Yes. Verified applications include the 2005 F75TLRD and later F75LA / F75TLR applications listed above.

Does it fit Yamaha F90?
Yes. The supplied fitment includes 2005 F90TJR / TLR / TXR engines and numerous later F90JA, LA, TJR, TLR, TXR and XA applications.

Does this fit Yamaha F80?
Yes. Verified F80 applications are primarily within the 1999-2003 engine families listed above.

Does it fit Yamaha F100?
Yes. Verified F100 TLR and TXR applications span 1999-2003.

Do you have an oversize piston?
Yes. The Wiseco 3208P2 .020 oversize / 79.5mm piston is linked above.

Do you have replacement cylinder sleeves?
Yes. Advanced Sleeve 1185SA and 1185SC options are linked above for compatible rebuild applications.

What main bearing set goes with this engine?
The Pro Marine 4CYLSSMAIN main bearing set is linked above for compatible Yamaha four-cylinder engines.

What connecting rod bearings go with this piston?
For compatible F75, F80, F90 and F100 applications, use the Pro Marine F75SSROD connecting rod bearing set linked above.

Is a complete gasket kit available?
Yes. The Pro Marine 6803 powerhead gasket kit is linked above.

Searchable Terms

3208PS, Wiseco 3208PS, Yamaha F75 piston, Yamaha F80 piston, Yamaha F90 piston, Yamaha F100 piston, Yamaha F75 standard piston, Yamaha F90 standard piston, Yamaha F80 standard piston, Yamaha F100 standard piston, 79mm Yamaha piston, 79.00mm Yamaha piston, 6D8-W1164-00-00, 6D8-W1164-30-00, 6D8-W1164-31-00, 67F-11640-00-00, Yamaha 6D8-W1164, Yamaha 67F-11640, 3208P2, Wiseco 79.5mm piston, Yamaha .020 piston, 1185SA, 1185SC, Yamaha cylinder sleeve, Yamaha F90 cylinder sleeve, 4CYLSSMAIN, Yamaha F90 main bearings, F75SSROD, Yamaha F90 rod bearings, 6803, Yamaha F90 powerhead gasket kit, Yamaha F75 engine rebuild, Yamaha F80 engine rebuild, Yamaha F90 engine rebuild, Yamaha F100 engine rebuild

Part Number & Size

OEM Piston Family

The corresponding standard-size piston family cross references the following Yamaha OEM piston assemblies:

Yamaha Outboard Fitment

Standard 79mm Wiseco Piston Option

If the cylinder remains within standard-size service limits, use the standard 79.00mm Wiseco 3208PS piston instead.

Wiseco Standard Piston Kit - 79.00mm - 3208PS

Standard-size piston for compatible Yamaha F75, F80, F90 and F100 four-stroke engines where the cylinder remains suitable for a 79.00mm standard bore.

OEM References: 6D8-W1164-00-00, 6D8-W1164-30-00, 6D8-W1164-31-00, 67F-11640-00-00

View Standard 79mm Wiseco Piston

Replacement Cylinder Sleeves

If cylinder damage is too severe for a normal .020 overbore repair, replacement sleeves may be required during the rebuild.

Advanced Sleeve 1185SC - Straight 4-Stroke Sleeve

Replacement cylinder sleeve option for compatible Yamaha four-stroke powerhead rebuilds.

Verify sleeve outside diameter, length and finished-bore requirements before machining or installation.

View 1185SC Cylinder Sleeve

Advanced Sleeve 1185SA - Straight 4-Stroke Sleeve

Alternate replacement cylinder sleeve option for compatible Yamaha four-stroke engine rebuilding.

Compare sleeve dimensions to the block and machining requirements before ordering.

View 1185SA Cylinder Sleeve

Crankshaft & Connecting Rod Bearings

A piston replacement is often part of a larger powerhead rebuild. Pro Marine stocks matching one-size crankshaft main and connecting rod bearing sets for compatible Yamaha four-cylinder engines.

Pro Marine Yamaha Main Bearing Set - 4CYLSSMAIN

Complete one-size crankshaft main bearing set for compatible Yamaha four-cylinder four-stroke applications.

First OEM Reference: 6D8-11416-00-00

Eliminates Yamaha bearing color-code selection and Plastigauge sizing.

View Main Bearing Set

Pro Marine F75-F100 Rod Bearing Set - F75SSROD

Matching one-size connecting rod bearing set for compatible Yamaha F75, F80, F90 and F100 four-stroke engines.

Designed to simplify bearing selection by eliminating the factory color-code sizing system.

View Connecting Rod Bearing Set

Complete Powerhead Gasket Kit

Pro Marine Powerhead Gasket Kit - 6803

Complete powerhead gasket kit for compatible Yamaha F75-F115 engine rebuilds.

Recommended when the engine is being disassembled for piston replacement, cylinder machining, bearing service or a complete rebuild.

OEM Families: 6D8-W0001, 67F-W0001 and 68V-W0001

View Powerhead Gasket Kit

Shop Yamaha Engine Rebuild Parts by Model

Use Pro Marine's Yamaha engine rebuild sections to find related pistons, bearings, valves, gaskets, sleeves and other internal engine components.

Standard vs. .020 Oversize Piston

Parts to Inspect During an Oversize Piston Rebuild

• Cylinder bore diameter and taper
• Cylinder roundness
• Finished piston-to-wall clearance
• Piston rings and ring end gap
• Connecting rod bearings
• Connecting rod bolts
• Crankshaft journals
• Crankshaft main bearings
• Cylinder head and valves
• Powerhead gaskets and seals
• Oil passages and lubrication system

Key Features and Benefits

• Wiseco oversize Yamaha piston kit
• Wiseco item 3208P2
• .020 oversize
• 79.5mm piston diameter
• Fits select Yamaha F75 engines
• Fits select Yamaha F80 engines
• Fits select Yamaha F90 engines
• Fits select Yamaha F100 engines
• Standard 79mm Wiseco piston linked above
• Replacement cylinder sleeves linked above
• Matching crankshaft main bearings linked above
• Matching connecting rod bearings linked above
• Complete powerhead gasket kit linked above

FAQ

What size is Wiseco 3208P2?
It is a 79.5mm / .020 oversize piston.

Is this the standard-size piston?
No. The standard-size piston is the Wiseco 3208PS 79.00mm piston linked above.

Does 3208P2 fit Yamaha F75?
Yes, for compatible F75 applications where the cylinder is properly machined for the 79.5mm oversize piston.

Does it fit Yamaha F90?
Yes. The supplied engine fitment includes numerous F90 applications, but the cylinder must be machined for the oversize piston.

Does it fit Yamaha F80 and F100?
Yes. Verified engine families include select F80 and F100 applications primarily from 1999 through 2003.

Can I put this piston in a standard bore?
No. This piston is .020 oversize and requires the cylinder to be correctly bored and finished for a 79.5mm piston.

Do you stock the standard-size piston?
Yes. The Wiseco 3208PS 79.00mm standard piston is linked above.

Do you have cylinder sleeves?
Yes. Advanced Sleeve 1185SA and 1185SC options are linked above.

What main bearings are available for this engine?
The Pro Marine 4CYLSSMAIN crankshaft main bearing set is linked above for compatible applications.

What rod bearings are available?
The Pro Marine F75SSROD connecting rod bearing set is linked above.

Is a complete gasket kit available?
Yes. The Pro Marine 6803 Powerhead Gasket Kit is linked above for compatible engine rebuilds.

Searchable Terms

3208P2, Wiseco 3208P2, Yamaha .020 piston, Yamaha 79.5mm piston, Yamaha F75 oversize piston, Yamaha F80 oversize piston, Yamaha F90 oversize piston, Yamaha F100 oversize piston, F75 .020 piston, F90 .020 piston, F80 .020 piston, F100 .020 piston, Yamaha F90 rebuild piston, 6D8-W1164-00-00, 6D8-W1164-30-00, 6D8-W1164-31-00, 67F-11640-00-00, Yamaha 6D8-W1164, Yamaha 67F-11640, 3208PS, Wiseco standard piston, Yamaha 79mm piston, 1185SA, 1185SC, Yamaha cylinder sleeve, 4CYLSSMAIN, Yamaha F90 main bearings, F75SSROD, Yamaha F90 rod bearings, 6803, Yamaha F90 gasket kit, Yamaha F75 rebuild parts, Yamaha F80 rebuild parts, Yamaha F90 rebuild parts, Yamaha F100 rebuild parts

Specifications

Yamaha Inline 4-Cylinder Application

The Advanced Sleeve 1185SC is designed for compatible Yamaha inline 4-cylinder four-stroke powerheads.

Cylinder sleeves are typically used during major powerhead rebuilding when the original cylinder wall is too worn, scored, corroded, damaged, or previously machined beyond the point where a normal oversize piston repair is practical.

Alternate 3.270" OD Cylinder Sleeve

Advanced Sleeve 1185SA - 3.270" Outside Diameter

Alternate replacement sleeve for compatible Yamaha inline four-cylinder four-stroke powerheads.

Outside Diameter: 3.270"
Bore: 3.118"
Length: 5.195"

The 1185SA uses a .040" smaller outside diameter than the 1185SC while retaining the same nominal bore and length.

View 1185SA 3.270" OD Sleeve

1185SC vs. 1185SA Cylinder Sleeve

What a Replacement Cylinder Sleeve Does

A replacement cylinder sleeve restores the cylinder wall when the original bore is no longer suitable for normal rebuilding. The damaged cylinder area is machined to accept the replacement sleeve, allowing the block to be repaired instead of discarded.

Once installed, the sleeve is bored and honed to the correct finished size for the piston that will be used in the rebuilt engine.

When the 3.310" OD Sleeve May Be Used

The larger outside diameter of the 1185SC provides additional material for applications where the block has been machined larger, has suffered more extensive cylinder-wall damage, or requires the larger sleeve outside diameter during the repair process.

The machine shop should determine which sleeve outside diameter is appropriate after inspecting and measuring the block.

Common Reasons to Install a Cylinder Sleeve

• Deep piston or cylinder-wall scoring
• Broken piston or piston-ring damage
• Severe cylinder corrosion
• Excessive cylinder taper
• Excessive out-of-round condition
• Damage beyond available oversize piston dimensions
• Previously bored cylinder requiring restoration
• Major Yamaha powerhead rebuilding

Machine Shop Installation

Cylinder sleeve installation requires precision machining. The engine block must be measured and machined for the correct sleeve fit before installation.

After the sleeve is installed, the cylinder must be bored and honed to the proper finished dimension and piston-to-wall clearance for the piston being installed.

Standard or Oversize Piston After Sleeving?

One advantage of installing a replacement sleeve is that the machinist can finish the repaired cylinder for the piston size selected for the rebuild.

Depending on the engine, piston availability and condition of the remaining cylinders, the sleeved cylinder may be finished for a standard or compatible oversize piston.

Parts to Inspect During a Cylinder Sleeve Repair

• Pistons and piston size
• Piston rings
• Finished cylinder bore
• Piston-to-wall clearance
• Connecting rods
• Connecting rod bolts
• Connecting rod bearings
• Crankshaft main bearings
• Crankshaft journals
• Cylinder head and sealing surface
• Valves and valve stem seals
• Powerhead gaskets and seals

Shop Yamaha Engine Rebuild Parts by Model

Pro Marine stocks the internal engine components commonly needed alongside cylinder sleeves, including pistons, piston rings, crankshaft bearings, connecting rod bearings, valves, head gaskets and complete powerhead gasket kits.

Key Features and Benefits

• Advanced Sleeve aftermarket replacement cylinder sleeve
• Part number 1185SC
• Designed for compatible Yamaha inline 4-cylinder four-stroke engines
• 3.310" outside diameter
• 3.118" bore
• 5.195" overall length
• Larger OD option compared with 1185SA
• Can restore cylinders with severe bore damage
• Designed for professional machine-shop installation
• Can be finish-machined for the appropriate rebuild piston
• 1185SA 3.270" OD sleeve linked above
• Yamaha engine rebuild parts by model linked above

FAQ

What engines does Advanced Sleeve 1185SC fit?
It is designed for compatible Yamaha inline 4-cylinder four-stroke engines.

What is the outside diameter of 1185SC?
The 1185SC has a 3.310" outside diameter.

What is the bore size of 1185SC?
The listed bore is 3.118".

How long is the sleeve?
The sleeve is 5.195" long.

What is the difference between 1185SC and 1185SA?
The main difference is outside diameter. 1185SC is 3.310" OD, while 1185SA is 3.270" OD.

Are the bore and length the same on both sleeves?
Yes. Both sleeves are listed with a 3.118" bore and 5.195" length.

How much larger is the 1185SC outside diameter?
The 1185SC is .040" larger in outside diameter than the 1185SA.

How do I know which sleeve I need?
The engine block should be measured by the machine shop performing the repair. Sleeve selection is based on the block condition and required outside diameter, not simply horsepower.

Does the sleeve require machining after installation?
Yes. The installed sleeve must be bored and honed to the required finished size and piston clearance for the rebuild.

Where can I find the pistons, bearings and gaskets for my Yamaha?
Use the Yamaha Engine Rebuild Parts by Model section linked above.

Searchable Terms

1185SC, Advanced Sleeve 1185SC, Yamaha cylinder sleeve, Yamaha inline 4 cylinder sleeve, Yamaha inline four cylinder sleeve, Yamaha 4 stroke cylinder sleeve, Yamaha outboard cylinder sleeve, Yamaha powerhead sleeve, Yamaha engine sleeve, 3.310 cylinder sleeve, 3.310 OD sleeve, 3.118 bore sleeve, 5.195 cylinder sleeve, Advanced Sleeve Yamaha, Yamaha F75 cylinder sleeve, Yamaha F80 cylinder sleeve, Yamaha F90 cylinder sleeve, Yamaha F100 cylinder sleeve, Yamaha F115 cylinder sleeve, Yamaha inline 4 engine rebuild, Yamaha powerhead rebuild, 1185SA, 3.270 OD sleeve, Yamaha rebuild parts, Yamaha engine rebuild parts by model

Specifications

Yamaha Inline 4-Cylinder Application

The Advanced Sleeve 1185SA is designed for compatible Yamaha inline 4-cylinder four-stroke powerheads.

Cylinder sleeves are commonly used during a powerhead rebuild when the original cylinder wall is damaged, excessively worn, scored, corroded, or has already been machined beyond an acceptable oversize repair.

Alternate 3.310" OD Cylinder Sleeve

Advanced Sleeve 1185SC - 3.310" Outside Diameter

Alternate replacement sleeve for compatible Yamaha inline four-cylinder four-stroke powerheads.

Outside Diameter: 3.310"
Bore: 3.118"
Length: 5.195"

The 1185SC uses a .040" larger outside diameter than the 1185SA while retaining the same nominal bore and length.

View 1185SC 3.310" OD Sleeve

1185SA vs. 1185SC Cylinder Sleeve

What a Replacement Cylinder Sleeve Does

A cylinder sleeve restores the cylinder wall when the original bore cannot be reused or machined successfully. The damaged original cylinder area is machined to accept the replacement sleeve, and the sleeve is then installed and finished to the required piston bore and clearance.

Sleeving can allow an otherwise damaged engine block to be returned to service when a standard or oversize piston repair is no longer practical.

When a Cylinder Sleeve May Be Needed

• Deep cylinder-wall scoring
• Severe piston or ring damage
• Corrosion or pitting in the cylinder wall
• Previous cylinder machining beyond available piston sizes
• Excessive taper or out-of-round
• Localized cylinder-wall damage
• Restoring a damaged block during a complete powerhead rebuild

Machine Shop Installation

Cylinder sleeve installation requires precision block machining. The block should be measured before selecting the sleeve so the correct outside diameter and required interference fit can be determined.

After installation, the replacement sleeve must be bored and honed to the correct finished dimension for the piston being installed.

Parts to Inspect During a Sleeved Powerhead Rebuild

• Pistons and piston size
• Piston rings
• Cylinder bore and finished piston clearance
• Connecting rod bearings
• Connecting rod bolts
• Crankshaft main bearings
• Crankshaft journals
• Cylinder head sealing surface
• Intake and exhaust valves
• Valve stem seals
• Oil passages and lubrication system
• Powerhead gaskets and seals

Shop Yamaha Engine Rebuild Parts by Model

Need pistons, bearings, rings, valves, gaskets or other components for the same rebuild? Use Pro Marine's Yamaha Engine Rebuild Parts by Model section to locate compatible internal engine components.

Key Features and Benefits

• Advanced Sleeve aftermarket cylinder sleeve
• Part number 1185SA
• Fits compatible Yamaha inline 4-cylinder four-stroke powerheads
• 3.270" outside diameter
• 3.118" bore
• 5.195" length
• Type CS
• Designed for professional cylinder-block machining and installation
• Can restore cylinders that cannot be repaired with a normal overbore
• 1185SC larger 3.310" OD sleeve option linked above
• Yamaha rebuild parts by model linked above

FAQ

What engines does Advanced Sleeve 1185SA fit?
It is designed for compatible Yamaha inline 4-cylinder four-stroke engines. Verify block and sleeve dimensions before ordering.

What is the outside diameter of 1185SA?
The 1185SA has a 3.270" outside diameter.

What is the bore size?
The nominal bore is 3.118".

How long is the sleeve?
The sleeve length is 5.195".

What is the difference between 1185SA and 1185SC?
The key difference is the outside diameter. 1185SA is 3.270" OD, while 1185SC is 3.310" OD. Both list a 3.118" bore and 5.195" length.

Can I install a cylinder sleeve myself?
Cylinder sleeve installation requires precision machining of the engine block and final boring/honing of the installed sleeve. This work is normally performed by an experienced marine machine shop.

Does the sleeve come finished and ready for the piston?
The installed sleeve must be checked and machined to the required finished bore and piston-to-wall clearance for the piston being used.

Where can I find other Yamaha engine rebuild parts?
Use the Yamaha Engine Rebuild Parts by Model section linked above.

Searchable Terms

1185SA, Advanced Sleeve 1185SA, Yamaha cylinder sleeve, Yamaha inline 4 cylinder sleeve, Yamaha inline four cylinder sleeve, Yamaha 4 stroke cylinder sleeve, Yamaha outboard cylinder sleeve, Yamaha powerhead sleeve, Yamaha engine sleeve, 3.270 cylinder sleeve, 3.270 OD sleeve, 3.118 bore sleeve, 5.195 cylinder sleeve, Advanced Sleeve Yamaha, Yamaha F75 cylinder sleeve, Yamaha F80 cylinder sleeve, Yamaha F90 cylinder sleeve, Yamaha F100 cylinder sleeve, Yamaha F115 cylinder sleeve, Yamaha inline 4 engine rebuild, Yamaha powerhead rebuild, 1185SC, 3.310 OD sleeve, Yamaha rebuild parts, Yamaha engine rebuild parts by model

OEM & Cross Reference Numbers

Ring Size

Compatible Engine Family

This oversize ring set is intended for the same Yamaha / Mercury engine family as the standard 11605 piston rings, when those engines have been correctly machined for the matching .25mm oversize piston.

Piston Options for This Engine Family

Vertex .010 Oversize Piston - 24228025

Size: .010 / .25mm Oversize

This is the piston size that matches the 11606 Yamaha OEM oversize ring configuration.

First OEM Reference: 60C-W1164-10-00

View Vertex .010 Oversize Piston

Vertex Standard Piston - 24228STD

Size: 79mm Standard

Use standard-size rings with this piston, not the 11606 oversize set.

View Vertex Standard Piston

Vertex .020 Oversize Piston - 24228050

Size: .020 / .50mm Oversize

This larger piston requires the ring package specified for the .020 oversize piston.

View Vertex .020 Piston

Wiseco Standard Piston - 3207PS

Size: 79mm Standard

Alternate standard-size piston for compatible Yamaha / Mercury four-stroke applications.

View Wiseco Standard Piston

Wiseco .020 Oversize Piston - 3207P2

Size: 79.5mm / .020 Oversize

Use the ring package specified for the Wiseco .020 piston rather than this .25mm Yamaha ring set.

View Wiseco .020 Piston

Need Standard-Size Rings?

Yamaha OEM Standard Piston Ring Kit - 11605

Use the 11605 standard ring kit when the engine is retaining a standard-size 79mm piston and standard finished bore.

OEM Numbers: 6D8-11603-00-00, 6D8-11603-01-00, 6D8-11603-10-00, 6D8-11603-11-00, 67F-11603-00-00, 67F-11603-01-00, 804107T1, 880897T02, 880897T1

View Standard Yamaha OEM Rings

Replacement Cylinder Sleeves

Advanced Sleeve 1185SA

OD: 3.270"
Bore: 3.118"
Length: 5.195"

Replacement sleeve option when cylinder damage cannot be corrected with a normal oversize bore.

View 1185SA Sleeve

Advanced Sleeve 1185SC

OD: 3.310"
Bore: 3.118"
Length: 5.195"

Larger-OD replacement sleeve option for compatible Yamaha inline four-cylinder block repairs.

View 1185SC Sleeve

Main & Connecting Rod Bearings

Pro Marine Main Bearing Set - 4CYLSSMAIN

One-size crankshaft main bearing set for compatible Yamaha inline four-cylinder engines.

First OEM Reference: 6D8-11416-00-00

View Main Bearing Set

Pro Marine F115 Rod Bearing Set - 4CYLSSROD

One-size connecting rod bearing set for compatible Yamaha F115 applications.

First OEM Reference: 68V-11656-00-00

View F115 Rod Bearing Set

Complete Powerhead Gasket Kit

Pro Marine Powerhead Gasket Kit - 6803

Complete gasket kit for compatible Yamaha inline four-cylinder powerhead rebuilds.

Recommended when the engine is disassembled for piston, ring, cylinder, bearing or crankshaft service.

View Powerhead Gasket Kit

Standard vs. Oversize Ring Selection

What Piston Rings Do

Piston rings seal combustion pressure between the piston and cylinder wall, control the amount of engine oil remaining on the cylinder surface, and help transfer piston heat into the cylinder.

Ring size must match the piston and finished cylinder bore. Incorrect ring sizing can prevent proper ring end gap and cylinder sealing.

Check Ring End Gap During Assembly

Always check piston ring end gap in the cylinder during assembly. Ring end gap requirements can vary by engine, piston manufacturer, piston size and intended application.

Follow the appropriate Yamaha, Mercury or piston manufacturer's rebuilding specification for the engine being assembled.

Shop Yamaha Engine Rebuild Parts by Model

Find pistons, rings, bearings, valves, cylinder sleeves, gaskets and related powerhead components in Pro Marine's Yamaha Engine Rebuild Parts by Model section.

Shop Yamaha Engine Rebuild Parts by Model

Key Features and Benefits

• Genuine Yamaha OEM piston ring kit
• Pro Marine item 11606
• .25mm / approximately .010 oversize
• For compatible Yamaha / Mercury 79mm piston-family engines
• Designed for use with the corresponding oversize piston
• Vertex .010 piston linked above
• Standard and .020 piston options linked above
• Standard Yamaha OEM ring kit linked above
• Replacement cylinder sleeves linked above
• Main and rod bearing sets linked above
• Complete powerhead gasket kit linked above

FAQ

Is Yamaha 11606 a standard-size ring set?
No. It is a .25mm / approximately .010 oversize piston ring kit.

What OEM number does 11606 replace?
The primary Yamaha OEM reference is 6D8-11604-00-00.

What piston goes with these rings?
The Vertex 24228025 .010 / .25mm oversize piston is linked above as the corresponding oversize piston option.

Can these rings be used with a standard piston?
No. Use the 11605 standard Yamaha OEM ring kit with compatible standard-size 79mm pistons.

Can these rings be used with a .020 piston?
No. Use the ring package specified for the exact .020 oversize piston.

Do you stock standard-size pistons?
Yes. Pro Marine stocks the Vertex 24228STD and Wiseco 3207PS standard 79mm piston options.

Do you stock .020 pistons?
Yes. The Vertex 24228050 and Wiseco 3207P2 .020 oversize options are linked above.

Are replacement cylinder sleeves available?
Yes. Advanced Sleeve 1185SA and 1185SC are linked above.

Are main and rod bearings available?
Yes. Pro Marine 4CYLSSMAIN and 4CYLSSROD bearing sets are linked above for compatible applications.

Is a complete gasket kit available?
Yes. The Pro Marine 6803 Powerhead Gasket Kit is linked above.

Searchable Terms

11606, Yamaha 11606, 6D8-11604-00-00, Yamaha oversize piston rings, Yamaha .010 piston rings, Yamaha .25mm piston rings, Yamaha F115 oversize rings, Yamaha LF115 oversize rings, Yamaha F90 oversize rings, Mercury 115 EFI oversize rings, Yamaha F115 .010 rings, Vertex 24228025 rings, 24228025, Vertex .010 piston, 24228STD, Vertex standard piston, 24228050, Vertex .020 piston, 3207PS, Wiseco standard piston, 3207P2, Wiseco .020 piston, 11605, Yamaha standard piston rings, 1185SA, 1185SC, Yamaha cylinder sleeve, 4CYLSSMAIN, Yamaha F115 main bearings, 4CYLSSROD, Yamaha F115 rod bearings, 6803, Yamaha powerhead gasket kit, Yamaha engine rebuild parts

OEM & Cross Reference Numbers

Yamaha Outboard Fitment

Yamaha used this standard piston ring family across several generations of inline four-cylinder four-stroke engines.

Mercury Outboard Fitment

Compatible Piston Options

Pro Marine stocks both Vertex and Wiseco pistons for this engine family. Always match the piston and ring size to the finished cylinder bore.

Vertex Standard Piston - 24228STD

Size: 79.00mm Standard

Standard-size Vertex piston option for compatible Yamaha and Mercury four-stroke engines.

First OEM: 68V-W1164-02-00

View Vertex Standard Piston

Wiseco Standard Piston - 3207PS

Size: 79.00mm Standard

Wiseco standard-size piston for compatible Yamaha F115 and Mercury 115 EFI applications.

OEM Family: 60C-W1164 / 68V-W1164 / 880895

View Wiseco Standard Piston

Vertex .010 Oversize Piston - 24228025

Size: .010 / .25mm Oversize

Requires the matching oversize ring configuration and a cylinder correctly machined for the .25mm oversize piston.

View Vertex .010 Piston

Vertex .020 Oversize Piston - 24228050

Size: .020 / .50mm Oversize

Oversize piston option for cylinders machined beyond the standard 79mm bore.

View Vertex .020 Piston

Wiseco .020 Oversize Piston - 3207P2

Size: 79.5mm / .020 Oversize

Wiseco oversize piston option for cylinders properly machined to the required finished bore.

View Wiseco .020 Piston

Need .010 Oversize Rings?

Yamaha OEM .25mm Oversize Piston Ring Kit - 11606

Yamaha OEM oversize piston ring set for the corresponding .25mm / approximately .010 oversize piston application.

First OEM: 6D8-11604-00-00

Use this option instead of 11605 when the engine has been correctly machined for the matching .25mm oversize piston.

View .25mm Oversize OEM Rings

Replacement Cylinder Sleeves

Advanced Sleeve 1185SA

OD: 3.270"
Bore: 3.118"
Length: 5.195"

Replacement cylinder sleeve for compatible Yamaha inline four-cylinder four-stroke rebuilds.

View 1185SA Sleeve

Advanced Sleeve 1185SC

OD: 3.310"
Bore: 3.118"
Length: 5.195"

Larger outside-diameter sleeve option for compatible engine block repairs.

View 1185SC Sleeve

Main & Connecting Rod Bearings

Pro Marine Main Bearing Set - 4CYLSSMAIN

Complete one-size crankshaft main bearing set for compatible Yamaha inline four-cylinder engines.

First OEM Reference: 6D8-11416-00-00

No Yamaha color-code bearing selection or Plastigauge sizing required.

View Main Bearing Set

Pro Marine F115 Rod Bearing Set - 4CYLSSROD

Complete one-size connecting rod bearing set for compatible Yamaha F115 four-stroke applications.

First OEM Reference: 68V-11656-00-00

View F115 Rod Bearing Set

Pro Marine F75-F100 Rod Bearing Set - F75SSROD

Connecting rod bearing set for compatible Yamaha F75, F80, F90 and F100 engine families.

View F75-F100 Rod Bearing Set

Complete Powerhead Gasket Kit

Pro Marine Powerhead Gasket Kit - 6803

Complete gasket kit for compatible Yamaha F75-F115 powerhead rebuilding applications.

Recommended when the engine is being disassembled for piston, ring, cylinder, crankshaft or bearing service.

OEM Families: 6D8-W0001, 67F-W0001 and 68V-W0001

View Powerhead Gasket Kit

What is Included

This listing is for a Yamaha OEM standard-size piston ring kit. Piston rings are sized for one piston. Verify the quantity required for your complete engine rebuild before ordering.

What Piston Rings Do

Piston rings seal the space between the piston and cylinder wall while allowing the piston to move freely through the cylinder.

The ring package helps contain combustion pressure, control engine oil on the cylinder wall and transfer heat from the piston into the cylinder.

Standard Rings or Oversize Rings?

Check Ring End Gap During Assembly

Piston ring end gap should be checked in the cylinder during engine assembly. Ring specifications can vary based on piston manufacturer, bore size and engine application.

Follow the Yamaha, Mercury, Wiseco or Vertex specifications applicable to the piston and engine being assembled.

Shop Yamaha Engine Rebuild Parts by Model

Need the rest of the engine components? Pro Marine organizes pistons, rings, bearings, valves, cylinder sleeves, gaskets and other internal components by Yamaha engine family.

Key Features and Benefits

• Genuine Yamaha OEM piston ring kit
• Standard-size piston ring set
• Fits compatible 79mm piston applications
• Fits select Yamaha F75 engines
• Fits select Yamaha F80 engines
• Fits select Yamaha F90 engines
• Fits select Yamaha F100 engines
• Fits extensive Yamaha F115 and LF115 applications
• Fits select Mercury 75HP and 90HP carbureted engines
• Fits select Mercury 75-115HP EFI engines
• Cross references Yamaha 6D8-11603 family
• Cross references Yamaha 67F-11603 family
• Cross references Mercury 804107T1 and 880897
• Standard Vertex and Wiseco pistons linked above
• Oversize piston options linked above
• .25mm oversize Yamaha OEM ring kit linked above
• Replacement cylinder sleeves linked above
• Main and rod bearing sets linked above
• Complete powerhead gasket kit linked above

FAQ

Is 11605 a standard-size piston ring kit?
Yes. This is the standard-size Yamaha OEM piston ring kit for compatible 79mm piston applications.

What Yamaha OEM numbers does 11605 replace?
It cross references 6D8-11603-00-00, 6D8-11603-01-00, 6D8-11603-10-00, 6D8-11603-11-00, 67F-11603-00-00 and 67F-11603-01-00.

What Mercury numbers does this ring kit cross reference?
Mercury references include 804107T1, 880897T02 and 880897T1.

Does this fit Yamaha F115?
Yes. The supplied fitment includes extensive F115 and LF115 applications from early engines through later model families.

Does it fit Yamaha F75 and F90?
Yes. The supplied application information includes select F75 and F90 engines.

Does this fit Yamaha F80 and F100?
Yes. Select F80 and F100 applications from approximately 1999-2003 are included in the supplied fitment.

Does this fit Mercury 115 EFI?
Yes. Supplied Mercury fitment includes 0T178500 thru 0T800999, 0T801000 thru 1B226999, and 1B227000 thru 1B366822.

Does it fit other Mercury horsepower models?
Yes. Supplied fitment also includes select Mercury 75HP, 80HP, 90HP and 100HP applications.

What standard pistons can I use?
Pro Marine stocks the Vertex 24228STD and Wiseco 3207PS standard 79mm piston options linked above.

Do you stock oversize piston rings?
Yes. The 11606 Yamaha OEM .25mm / approximately .010 oversize ring kit is linked above.

Do you stock oversize pistons?
Yes. Vertex .010 and .020 pistons and a Wiseco .020 piston are linked above.

Do you have cylinder sleeves?
Yes. Advanced Sleeve 1185SA and 1185SC are linked above.

Are crankshaft and rod bearings available?
Yes. Pro Marine 4CYLSSMAIN, F75SSROD and 4CYLSSROD bearing sets are linked above for compatible applications.

Is a complete powerhead gasket kit available?
Yes. The Pro Marine 6803 Powerhead Gasket Kit is linked above.

Searchable Terms

11605, Yamaha 11605, Yamaha piston rings, Yamaha standard piston rings, Yamaha 79mm piston rings, Yamaha F75 piston rings, Yamaha F80 piston rings, Yamaha F90 piston rings, Yamaha F100 piston rings, Yamaha F115 piston rings, Yamaha LF115 piston rings, Mercury 75 piston rings, Mercury 90 piston rings, Mercury 115 EFI piston rings, Mercury 115 four stroke rings, 6D8-11603-00-00, 6D8-11603-01-00, 6D8-11603-10-00, 6D8-11603-11-00, 67F-11603-00-00, 67F-11603-01-00, 804107T1, 880897T02, 880897T1, Yamaha 6D8-11603, Yamaha 67F-11603, Mercury 880897, 24228STD, Vertex F115 piston, 3207PS, Wiseco F115 piston, 24228025, Vertex .010 piston, 24228050, Vertex .020 piston, 3207P2, Wiseco .020 piston, 11606, Yamaha oversize piston rings, 1185SA, 1185SC, Yamaha cylinder sleeve, 4CYLSSMAIN, F75SSROD, 4CYLSSROD, 6803, Yamaha powerhead gasket kit, Yamaha engine rebuild parts

Piston Size & Application

OEM & Cross Reference Piston Family

Yamaha Outboard Fitment

Mercury 115HP EFI Fitment

Other Piston Options

Vertex Standard Piston - 24228STD

Size: 79.00mm Standard

Standard-size Vertex piston for cylinders that remain within standard bore specifications.

First OEM: 68V-W1164-02-00

View Vertex Standard Piston

Vertex .020 Oversize Piston - 24228050

Size: .020 / .50mm Oversize

Larger oversize Vertex piston option where cylinder condition requires machining beyond .010.

View Vertex .020 Piston

Wiseco Standard Piston - 3207PS

Size: 79.00mm Standard

Alternate Wiseco standard-size piston for compatible Yamaha F115 and Mercury 115 EFI applications.

View Wiseco Standard Piston

Wiseco .020 Oversize Piston - 3207P2

Size: 79.5mm / .020 Oversize

Wiseco .020 oversize alternative for correctly machined cylinders.

View Wiseco .020 Piston

Yamaha OEM Piston Ring Options

Yamaha OEM Standard Ring Kit - 11605

Size: Standard 79mm

First OEM: 6D8-11603-00-00

View Standard OEM Rings

Yamaha OEM .25mm Oversize Ring Kit - 11606

Size: .25mm / approximately .010 Oversize

First OEM: 6D8-11604-00-00

This is the OEM Yamaha oversize ring option to review for the corresponding .25mm / .010 oversize piston configuration.

View .25mm OEM Rings

Replacement Cylinder Sleeves

If cylinder damage cannot be corrected with an oversize bore, replacement cylinder sleeves may be required.

Advanced Sleeve 1185SC

Straight 4-stroke replacement sleeve for compatible powerhead rebuilds.

Verify sleeve dimensions and block machining requirements before installation.

View 1185SC Sleeve

Advanced Sleeve 1185SA

Alternate straight 4-stroke cylinder sleeve option for compatible Yamaha / Mercury engine rebuilding.

Compare sleeve dimensions to the block before machining.

View 1185SA Sleeve

Main & Connecting Rod Bearings

Pro Marine Main Bearing Set - 4CYLSSMAIN

Complete one-size crankshaft main bearing set for compatible Yamaha four-cylinder engines.

First OEM Reference: 6D8-11416-00-00

Eliminates factory Yamaha bearing color-code selection and Plastigauge sizing.

View Main Bearing Set

Pro Marine F115 Rod Bearing Set - 4CYLSSROD

Complete one-size connecting rod bearing set for compatible Yamaha F115 four-stroke applications.

First OEM Reference: 68V-11656-00-00

Eliminates the factory Yamaha rod-bearing color selection process.

View Rod Bearing Set

Complete Powerhead Gasket Kit

Pro Marine Powerhead Gasket Kit - 6803

Complete gasket kit for compatible Yamaha F75-F115 powerhead rebuilds.

Recommended when the engine is disassembled for piston replacement, cylinder machining, bearing replacement or other major internal repairs.

OEM Families: 6D8-W0001, 67F-W0001 and 68V-W0001

View Powerhead Gasket Kit

Piston Size Guide

Shop Yamaha Engine Rebuild Parts by Model

Find additional pistons, rings, bearings, valves, gaskets, sleeves and internal engine components in the Yamaha Engine Rebuild Parts by Model section.

Shop Yamaha Engine Rebuild Parts by Model

When to Use a .010 Oversize Piston

A .010 oversize piston can be used when cylinder wear or damage requires machining beyond the standard bore but does not require a full .020 overbore.

The cylinder should be measured for diameter, taper and out-of-round before machining. The finished bore and piston-to-wall clearance should follow the piston manufacturer's specifications.

Parts to Inspect During an Engine Rebuild

• Cylinder diameter and bore condition
• Cylinder taper and out-of-round
• Piston-to-wall clearance
• Piston rings and ring end gap
• Connecting rod condition
• Connecting rod bolts
• Connecting rod bearings
• Crankshaft main bearings
• Crankshaft journals
• Cylinder head and valves
• Valve stem seals
• Oil passages and lubrication system
• Powerhead gaskets and seals

Key Features and Benefits

• Vertex oversize piston kit
• Vertex part number 24228025
• .010 / .25mm oversize
• Fits extensive Yamaha F115 and LF115 applications
• Fits select Yamaha F75 and F90 applications
• Fits select Mercury 115HP EFI engines
• Standard Vertex piston linked above
• Vertex .020 piston linked above
• Wiseco standard and .020 piston options linked above
• Matching Yamaha OEM .25mm oversize rings linked above
• Replacement cylinder sleeves linked above
• Main and connecting rod bearings linked above
• Complete powerhead gasket kit linked above

FAQ

What size is Vertex 24228025?
It is a .010 / .25mm oversize piston.

Is this a standard-size piston?
No. The standard Vertex piston is the 24228STD 79.00mm piston linked above.

Can I install this piston in a standard 79mm cylinder?
No. The cylinder must be correctly machined and finished for the .25mm / .010 oversize piston.

Does this fit Yamaha F115?
Yes. The supplied engine fitment includes extensive F115 and LF115 applications.

Does it fit Mercury 115 EFI?
Yes. Supplied Mercury fitment includes 0T178500 thru 0T800999, 0T801000 thru 1B226999, and 1B227000 thru 1B366822.

What rings go with the .010 oversize piston?
The Yamaha OEM 11606 .25mm oversize ring kit is linked above for the corresponding oversize piston configuration.

Do you have a .020 oversize Vertex piston?
Yes. The Vertex 24228050 is the .020 oversize option.

Do you have Wiseco piston options?
Yes. The Wiseco 3207PS standard 79mm and 3207P2 .020 / 79.5mm pistons are linked above.

Are cylinder sleeves available?
Yes. Advanced Sleeve 1185SA and 1185SC options are linked above.

What main bearings are available?
The Pro Marine 4CYLSSMAIN main bearing set is linked above.

What connecting rod bearings are available?
The Pro Marine 4CYLSSROD rod bearing set is linked above.

Is a complete gasket kit available?
Yes. The Pro Marine 6803 Powerhead Gasket Kit is linked above.

Searchable Terms

24228025, Vertex 24228025, Yamaha F115 .010 piston, Yamaha F115 .25mm piston, Yamaha F115 oversize piston, Yamaha LF115 .010 piston, Yamaha F90 oversize piston, Mercury 115 EFI .010 piston, Mercury 115 oversize piston, Yamaha .010 piston, Yamaha .25mm piston, 60C-W1164-10-00, 60C-W1164-00-00, 60C-W1164-01-00, 68V-W1164-00-00, 68V-W1164-01-00, 68V-W1164-02-00, 880895A05, 880895A14, 880895T1, Yamaha 60C-W1164, Yamaha 68V-W1164, Mercury 880895, 24228STD, Vertex standard piston, 24228050, Vertex .020 piston, 3207PS, Wiseco standard piston, 3207P2, Wiseco .020 piston, 11605, Yamaha standard rings, 11606, 6D8-11604-00-00, Yamaha .010 rings, 1185SA, 1185SC, Yamaha F115 cylinder sleeve, 4CYLSSMAIN, Yamaha F115 main bearings, 4CYLSSROD, Yamaha F115 rod bearings, 6803, Yamaha F115 gasket kit, Yamaha F115 rebuild, Mercury 115 EFI rebuild

OEM & Cross Reference Numbers

Yamaha Outboard Fitment

Mercury 115HP EFI Fitment

Other Piston Options

Wiseco Standard Piston - 3207PS

Size: 79.00mm Standard

Alternate standard-size piston for compatible Yamaha F115 and Mercury 115 EFI applications.

OEM Family: 60C-W1164 / 68V-W1164 / 880895

View Wiseco Standard Piston

Vertex .010 Oversize Piston - 24228025

Size: +.010 / .25mm Oversize

Intermediate oversize option for a cylinder properly machined for the .010 oversize piston.

First OEM Reference: 60C-W1164-10-00

View Vertex .010 Piston

Vertex .020 Oversize Piston - 24228050

Size: +.020 / .50mm Oversize

Vertex .020 oversize option for compatible Yamaha / Mercury rebuilds.

View Vertex .020 Piston

Wiseco .020 Oversize Piston - 3207P2

Size: 79.5mm / .020 Oversize

Alternate Wiseco .020 oversize piston option for a properly machined cylinder.

View Wiseco .020 Piston

Yamaha OEM Piston Ring Options

Yamaha OEM Standard Ring Kit - 11605

Size: Standard 79mm

First OEM: 6D8-11603-00-00

OEM standard-size ring option for compatible 79mm pistons.

View Standard OEM Rings

Yamaha OEM .25mm Oversize Ring Kit - 11606

Size: .25mm / approximately .010 Oversize

First OEM: 6D8-11604-00-00

OEM oversize rings for the corresponding Yamaha .25mm oversize piston.

View .25mm OEM Rings

Replacement Cylinder Sleeves

If cylinder damage is too severe for a normal oversize-bore repair, replacement cylinder sleeves may be used during the rebuild.

Advanced Sleeve 1185SC

Straight 4-stroke cylinder sleeve for compatible powerhead rebuilds.

Verify sleeve dimensions and block machining requirements before installation.

View 1185SC Sleeve

Advanced Sleeve 1185SA

Alternate straight 4-stroke cylinder sleeve option for compatible engines.

Compare sleeve dimensions with the block before machining.

View 1185SA Sleeve

Main & Connecting Rod Bearings

Pro Marine Main Bearing Set - 4CYLSSMAIN

Complete one-size crankshaft main bearing set for compatible Yamaha four-cylinder four-stroke engines.

First OEM Reference: 6D8-11416-00-00

No Yamaha bearing color-code selection or Plastigauge sizing required.

View Main Bearing Set

Pro Marine F115 Rod Bearing Set - 4CYLSSROD

Complete one-size connecting rod bearing set for compatible Yamaha F115 four-stroke applications.

First OEM Reference: 68V-11656-00-00

Eliminates the factory Yamaha color-code bearing selection process.

View Rod Bearing Set

Complete Powerhead Gasket Kit

Pro Marine Powerhead Gasket Kit - 6803

Complete gasket kit for compatible Yamaha F75-F115 powerhead rebuilds.

Recommended when the engine is being completely disassembled for piston, cylinder, crankshaft or bearing work.

OEM Families: 6D8-W0001, 67F-W0001 and 68V-W0001

View Powerhead Gasket Kit

Piston Size Guide

Shop Yamaha Engine Rebuild Parts by Model

Need additional components? Use the Yamaha Engine Rebuild Parts by Model section to shop pistons, rings, bearings, valves, gaskets, sleeves and related internal engine parts.

Shop Yamaha Engine Rebuild Parts by Model

What This Piston is Used For

The piston transfers combustion force through the connecting rod to the crankshaft while the piston rings seal combustion pressure and control oil on the cylinder wall.

During a rebuild, the cylinders should be accurately measured for diameter, taper and out-of-round condition before selecting standard or oversize pistons.

Parts to Inspect During Piston Replacement

• Cylinder bore diameter and condition
• Cylinder taper and out-of-round
• Piston-to-wall clearance
• Piston rings and ring end gap
• Connecting rod bearings
• Connecting rod bolts
• Crankshaft main bearings
• Crankshaft journals
• Cylinder head and valves
• Valve stem seals
• Oil passages and lubrication system
• Powerhead gaskets and seals

Key Features and Benefits

• Vertex standard-size piston kit
• Vertex part number 24228STD
• 79.00mm standard size
• Fits extensive Yamaha F115 and LF115 applications
• Fits select Yamaha F75 and F90 applications
• Fits select Mercury 115HP EFI applications
• Wiseco standard piston alternative linked above
• Vertex .010 and .020 oversize pistons linked above
• Wiseco .020 oversize piston linked above
• Yamaha OEM standard and oversize rings linked above
• Replacement cylinder sleeve options linked above
• Matching main and rod bearings linked above
• Complete powerhead gasket kit linked above

FAQ

What size is Vertex 24228STD?
It is the standard-size 79.00mm piston.

Does Vertex 24228STD fit Yamaha F115?
Yes. The supplied application data includes extensive F115 and LF115 fitment.

Does it fit Mercury 115 EFI?
Yes. Supplied Mercury fitment includes 0T178500 thru 0T800999, 0T801000 thru 1B226999, and 1B227000 thru 1B366822.

Is there another standard-size piston option?
Yes. The Wiseco 3207PS 79mm piston is linked above.

Do you have a .010 oversize piston?
Yes. The Vertex 24228025 is the .010 / .25mm oversize option.

Do you have a .020 oversize piston?
Yes. Pro Marine stocks both the Vertex 24228050 and Wiseco 3207P2 .020 oversize pistons.

What rings are available?
Yamaha OEM 11605 standard rings and 11606 .25mm oversize rings are linked above.

Are replacement cylinder sleeves available?
Yes. Advanced Sleeve 1185SA and 1185SC options are linked above.

What main bearings are available?
The Pro Marine 4CYLSSMAIN main bearing set is linked above.

What rod bearings are available?
The Pro Marine 4CYLSSROD connecting rod bearing set is linked above.

Do you stock a complete powerhead gasket kit?
Yes. The Pro Marine 6803 powerhead gasket kit is linked above.

Searchable Terms

24228STD, Vertex 24228STD, Yamaha F115 piston, Yamaha LF115 piston, Yamaha F90 piston, Yamaha F75 piston, Mercury 115 EFI piston, Mercury 115 four stroke piston, Yamaha 79mm piston, Yamaha standard piston, Vertex F115 piston, 68V-W1164-02-00, 68V-W1164-00-00, 68V-W1164-01-00, 60C-W1164-00-00, 60C-W1164-01-00, 880895A05, 880895A14, 880895T1, Yamaha 68V-W1164, Yamaha 60C-W1164, Mercury 880895, 3207PS, Wiseco F115 piston, 24228025, Vertex .010 piston, 24228050, Vertex .020 piston, 3207P2, Wiseco .020 piston, 11605, Yamaha F115 standard rings, 11606, Yamaha F115 oversize rings, 1185SA, 1185SC, Yamaha F115 sleeve, 4CYLSSMAIN, Yamaha F115 main bearings, 4CYLSSROD, Yamaha F115 rod bearings, 6803, Yamaha F115 gasket kit, Yamaha F115 rebuild, Mercury 115 EFI rebuild

Piston Size & Application

OEM & Cross Reference Piston Family

Yamaha Outboard Fitment

Mercury 115HP EFI Fitment

Standard Wiseco Piston Option

Wiseco Standard Piston Kit - 79mm - 3207PS

Use the 3207PS standard 79.00mm piston when the cylinder remains within standard-size service limits.

OEM Family: 60C-W1164, 68V-W1164 and Mercury 880895

View Standard Wiseco Piston

Vertex Piston Options

Pro Marine also stocks Vertex piston kits in standard, .010 oversize and .020 oversize for compatible applications.

Vertex Standard Piston - 24228STD

Size: Standard / 79.00mm

First OEM: 68V-W1164-02-00

View Vertex Standard Piston

Vertex .010 Oversize Piston - 24228025

Size: +.010 / .25mm Oversize

First OEM Reference: 60C-W1164-10-00

View Vertex .010 Piston

Vertex .020 Oversize Piston - 24228050

Size: +.020 Oversize

Alternate .020 oversize piston option for compatible engine rebuilds.

View Vertex .020 Piston

Yamaha OEM Piston Ring Options

Yamaha OEM Standard Ring Kit - 11605

Size: Standard 79mm

First OEM: 6D8-11603-00-00

View Standard OEM Rings

Yamaha OEM .25mm Oversize Ring Kit - 11606

Size: .25mm / approximately .010 oversize

First OEM: 6D8-11604-00-00

View .25mm OEM Rings

Replacement Cylinder Sleeves

If the cylinder is damaged beyond a normal oversize-bore repair, Pro Marine stocks replacement Advanced Sleeve options.

Advanced Sleeve 1185SC

Straight 4-stroke cylinder sleeve for compatible powerhead rebuilding.

Verify outside diameter, length and machining requirements before installation.

View 1185SC Sleeve

Advanced Sleeve 1185SA

Alternate straight 4-stroke cylinder sleeve for compatible engine rebuilding.

Compare sleeve dimensions to the block before machining.

View 1185SA Sleeve

Main & Connecting Rod Bearings

Pro Marine Main Bearing Set - 4CYLSSMAIN

Complete one-size crankshaft main bearing set for compatible Yamaha four-cylinder engines.

First OEM Reference: 6D8-11416-00-00

No Yamaha bearing color-code selection or Plastigauge sizing required.

View Main Bearing Set

Pro Marine F115 Rod Bearing Set - 4CYLSSROD

One-size connecting rod bearing set for compatible Yamaha F115 four-stroke applications.

First OEM Reference: 68V-11656-00-00

Designed to eliminate Yamaha factory bearing color selection.

View Rod Bearing Set

Complete Powerhead Gasket Kit

Pro Marine Powerhead Gasket Kit - 6803

Complete powerhead gasket kit for compatible Yamaha F75-F115 engine rebuilds.

Recommended when the engine is disassembled for cylinder machining, piston replacement, bearing service or other major internal repairs.

OEM Families: 6D8-W0001, 67F-W0001 and 68V-W0001

View Powerhead Gasket Kit

Piston Size Guide

Shop Yamaha Engine Rebuild Parts by Model

Use Pro Marine's Yamaha Engine Rebuild Parts by Model section to find additional pistons, bearings, rings, valves, gaskets, sleeves and other internal engine parts.

When to Use an Oversize Piston

An oversize piston is used when cylinder wear, taper, scoring or damage requires the cylinder to be machined larger than the original standard bore.

The cylinder should first be accurately measured to determine whether it can remain standard, be bored .010 or .020 oversize, or requires installation of a replacement cylinder sleeve.

Parts to Inspect During an Oversize Piston Rebuild

• Cylinder bore diameter
• Cylinder taper and out-of-round
• Finished piston-to-wall clearance
• Piston rings and ring end gap
• Connecting rod condition
• Connecting rod bolts
• Connecting rod bearings
• Crankshaft main bearings
• Crankshaft journals
• Cylinder head and valves
• Valve stem seals
• Oil passages and lubrication system
• Powerhead gaskets and seals

Key Features and Benefits

• Wiseco aftermarket piston kit
• Wiseco part number 3207P2
• .020 oversize / 79.5mm
• Fits extensive Yamaha F115 and LF115 applications
• Fits select Yamaha F75 and F90 applications
• Fits select Mercury 115HP EFI applications
• Standard Wiseco piston linked above
• Vertex standard, .010 and .020 piston options linked above
• Yamaha OEM standard and .25mm oversize ring options linked above
• Replacement cylinder sleeves linked above
• Main and connecting rod bearing sets linked above
• Complete powerhead gasket kit linked above

FAQ

What size is Wiseco 3207P2?
It is a .020 oversize / 79.5mm piston.

Is this the standard-size piston?
No. The standard Wiseco piston is the 3207PS 79.00mm piston linked above.

Can I install 3207P2 in a standard cylinder?
No. The cylinder must be properly bored and finished for the 79.5mm oversize piston.

Does this fit Yamaha F115?
Yes. The supplied application information includes extensive F115 and LF115 fitment, but the cylinder must be machined for this oversize piston.

Does this fit Mercury 115 EFI?
Yes. Supplied fitment includes 0T178500 thru 0T800999, 0T801000 thru 1B226999, and 1B227000 thru 1B366822.

Do you have a .010 oversize piston?
Yes. The Vertex 24228025 .010 oversize piston is linked above.

Do you have another .020 piston option?
Yes. The Vertex 24228050 .020 piston is also linked above.

Do you have replacement cylinder sleeves?
Yes. Advanced Sleeve 1185SA and 1185SC options are linked above.

What main bearings go with this engine?
The Pro Marine 4CYLSSMAIN main bearing set is linked above.

What connecting rod bearings are available?
The Pro Marine 4CYLSSROD rod bearing set is linked above.

Is a complete gasket kit available?
Yes. The Pro Marine 6803 Powerhead Gasket Kit is linked above.

Searchable Terms

3207P2, Wiseco 3207P2, Yamaha F115 .020 piston, Yamaha F115 oversize piston, Yamaha LF115 oversize piston, Yamaha F90 oversize piston, Mercury 115 EFI oversize piston, Mercury 115 .020 piston, Yamaha 79.5mm piston, Yamaha .020 piston, 60C-W1164-00-00, 60C-W1164-01-00, 68V-W1164-00-00, 68V-W1164-01-00, 68V-W1164-02-00, 880895A05, 880895A14, 880895T1, Yamaha 60C-W1164, Yamaha 68V-W1164, Mercury 880895, 3207PS, Wiseco 79mm piston, 24228STD, Vertex standard piston, 24228025, Vertex .010 piston, 24228050, Vertex .020 piston, 11605, Yamaha standard rings, 11606, Yamaha .010 rings, 1185SA, 1185SC, Yamaha F115 cylinder sleeve, 4CYLSSMAIN, Yamaha F115 main bearings, 4CYLSSROD, Yamaha F115 rod bearings, 6803, Yamaha F115 gasket kit, Mercury 115 EFI rebuild

OEM & Cross Reference Numbers

Yamaha Outboard Fitment

Mercury 115HP EFI Fitment

Piston Options for This Engine Family

Pro Marine stocks both Wiseco and Vertex piston options for compatible Yamaha and Mercury four-stroke rebuilds. Select piston size only after measuring the cylinders and determining the required finished bore.

Wiseco .020 Oversize Piston - 3207P2

Size: 79.5mm / .020 Oversize

Oversize Wiseco option for a cylinder correctly machined for the 79.5mm piston.

OEM Family: 60C-W1164 / 68V-W1164

View Wiseco .020 Piston

Vertex Standard Piston Kit - 24228STD

Size: Standard / 79mm

Alternate standard-size piston option for compatible Yamaha F90-F115 four-stroke engines.

First OEM: 68V-W1164-02-00

View Vertex Standard Piston

Vertex .010 Oversize Piston - 24228025

Size: +.010 / .25mm Oversize

Intermediate oversize piston option when the cylinder can be correctly finished at .010 oversize.

First OEM Reference: 60C-W1164-10-00

View Vertex .010 Piston

Vertex .020 Oversize Piston - 24228050

Size: +.020 Oversize

Vertex oversize piston option for compatible Yamaha F90-F115 four-stroke engine rebuilds.

OEM Family: 60C-W1164 / 68V-W1164

View Vertex .020 Piston

Yamaha OEM Piston Ring Options

Yamaha OEM Standard Piston Ring Kit - 11605

Bore: 79.00mm Standard

First OEM: 6D8-11603-00-00

OEM standard-size ring option for compatible 79mm Yamaha 115HP four-stroke piston applications.

View Standard OEM Rings

Yamaha OEM .25mm Oversize Ring Kit - 11606

Size: .25mm / approximately .010 Oversize

First OEM: 6D8-11604-00-00

OEM oversize ring option for the corresponding Yamaha .25mm oversize piston configuration.

View .25mm OEM Rings

Replacement Cylinder Sleeves

If a cylinder is too damaged for a normal overbore repair, Pro Marine stocks replacement Advanced Sleeve options for compatible four-stroke engine rebuilding.

Advanced Sleeve 1185SC

Straight replacement 4-stroke cylinder sleeve for compatible powerhead rebuilding applications.

Verify sleeve dimensions and machining requirements before installation.

View 1185SC Sleeve

Advanced Sleeve 1185SA

Alternate straight 4-stroke cylinder sleeve option for compatible Yamaha / Mercury powerhead rebuilding.

Compare sleeve dimensions with the block before machining.

View 1185SA Sleeve

Crankshaft Main & Connecting Rod Bearings

When rebuilding the complete Yamaha F115 powerhead, inspect the crankshaft main and connecting rod bearings at the same time as the pistons.

Pro Marine Yamaha Main Bearing Set - 4CYLSSMAIN

One-size crankshaft main bearing set for compatible Yamaha four-cylinder four-stroke applications.

First OEM Reference: 6D8-11416-00-00

No Yamaha bearing color-code selection or Plastigauge sizing required.

View Main Bearing Set

Pro Marine Yamaha F115 Rod Bearing Set - 4CYLSSROD

Complete one-size connecting rod bearing set for compatible Yamaha F115 four-stroke engines.

First OEM Reference: 68V-11656-00-00

Designed to eliminate Yamaha bearing color-code selection and Plastigauge sizing.

View Rod Bearing Set

Complete Powerhead Gasket Kit

Pro Marine Powerhead Gasket Kit - 6803

Complete powerhead gasket kit for compatible Yamaha F75-F115 engine rebuilds.

A useful option when the engine is being completely disassembled for piston replacement, cylinder machining, bearing service or other major internal repairs.

OEM Families: 6D8-W0001, 67F-W0001 and 68V-W0001

View Powerhead Gasket Kit

Choosing the Correct Piston Size

Shop Yamaha Engine Rebuild Parts by Model

Looking for the rest of the internal engine components? Use the Pro Marine Yamaha Engine Rebuild Parts by Model section to find pistons, rings, bearings, valves, gaskets, sleeves and related powerhead parts.

What This Piston is Used For

The piston transfers combustion force through the connecting rod to the crankshaft while the piston rings seal combustion pressure and control oil on the cylinder wall.

During a powerhead rebuild, piston size should be selected only after the cylinders have been accurately measured for diameter, taper and out-of-round condition.

Parts to Inspect During a Piston Replacement

• Cylinder bore diameter, taper and roundness
• Piston-to-cylinder-wall clearance
• Piston rings and ring end gap
• Connecting rods and rod bolts
• Connecting rod bearings
• Crankshaft main bearings
• Crankshaft journals
• Cylinder head sealing surface
• Intake and exhaust valves
• Valve stem seals
• Oil passages and lubrication system
• Powerhead gaskets and seals

Key Features and Benefits

• Wiseco aftermarket piston kit
• Wiseco part number 3207PS
• Standard 79.00mm / 3.110" piston size
• Fits extensive Yamaha F115 and LF115 applications
• Fits select Yamaha F75 and F90 applications
• Fits select Mercury 115HP EFI four-stroke engines
• Cross references Yamaha 60C-W1164 piston family
• Cross references Yamaha 68V-W1164 piston family
• Cross references Mercury 880895 piston family
• Wiseco .020 oversize piston available
• Vertex standard, .010 and .020 piston options available
• Yamaha OEM standard and oversize rings linked above
• Replacement cylinder sleeves linked above
• Pro Marine main and rod bearing sets linked above
• Complete powerhead gasket kit linked above

FAQ

What size is Wiseco 3207PS?
The 3207PS is the standard 79.00mm / 3.110" piston.

What Yamaha numbers does 3207PS replace?
It cross references 60C-W1164-00-00, 60C-W1164-01-00, 68V-W1164-00-00, 68V-W1164-01-00 and 68V-W1164-02-00.

What Mercury piston numbers does this cross reference?
Mercury references include 880895A05, 880895A14 and 880895T1.

Does this piston fit Yamaha F115?
Yes. The supplied application data includes extensive F115 TJR, TLR, TXR, JA, LA and XA applications as well as LF115 counter-rotation engines.

Does it fit Mercury 115 EFI?
Yes. Supplied Mercury fitment includes 0T178500 thru 0T800999, 0T801000 thru 1B226999, and 1B227000 thru 1B366822.

Is there a .020 oversize Wiseco piston?
Yes. The Wiseco 3207P2 79.5mm / .020 oversize piston is linked above.

Are Vertex pistons available?
Yes. Pro Marine stocks Vertex standard, .010 oversize and .020 oversize piston options for compatible applications.

Do you have OEM Yamaha rings?
Yes. The 11605 standard 79mm and 11606 .25mm oversize Yamaha OEM ring kits are linked above.

Do you have cylinder sleeves?
Yes. Advanced Sleeve 1185SA and 1185SC options are linked above.

What main bearing set is available?
The Pro Marine 4CYLSSMAIN crankshaft main bearing set is linked above for compatible Yamaha engines.

What rod bearings are available for the F115?
The Pro Marine 4CYLSSROD connecting rod bearing set is linked above.

Is a complete gasket kit available?
Yes. The Pro Marine 6803 Powerhead Gasket Kit is linked above for compatible powerhead rebuilds.

Searchable Terms

3207PS, Wiseco 3207PS, Yamaha F115 piston, Yamaha LF115 piston, Yamaha F90 piston, Yamaha F75 piston, Mercury 115 EFI piston, Mercury 115 four stroke piston, Yamaha 79mm piston, Yamaha 79.00mm piston, Yamaha standard piston, 60C-W1164-00-00, 60C-W1164-01-00, 68V-W1164-00-00, 68V-W1164-01-00, 68V-W1164-02-00, 880895A05, 880895A14, 880895T1, Yamaha 60C-W1164, Yamaha 68V-W1164, Mercury 880895, 3207P2, Wiseco .020 piston, Wiseco 79.5mm piston, 24228STD, Vertex F115 piston, 24228025, Vertex .010 piston, 24228050, Vertex .020 piston, 11605, 6D8-11603-00-00, Yamaha F115 standard rings, 11606, 6D8-11604-00-00, Yamaha F115 oversize rings, 1185SA, 1185SC, Yamaha F115 cylinder sleeve, Mercury 115 cylinder sleeve, 4CYLSSMAIN, Yamaha F115 main bearings, 4CYLSSROD, Yamaha F115 rod bearings, 6803, Yamaha F115 powerhead gasket kit, Mercury 115 EFI rebuild, Yamaha F115 engine rebuild, Yamaha 70 rebuild parts, Yamaha 80 rebuild parts, Yamaha 90 rebuild parts