F75 80 90 Inline 4 Rebuild Parts | 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-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

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OEM & Cross Reference Numbers

Yamaha Outboard Fitment

Yamaha uses this connecting rod bolt across several generations of four-cylinder four-stroke outboards. Verified applications include F75, F90, F115, F130, LF115, LF130, VF90 and VF115 engine families.

Detailed Yamaha F115 Coverage

The supplied application information includes Yamaha F115 fitment from early F115 four-stroke models through later-generation engines.

Mercury 115HP EFI Fitment

Mercury also uses the 880896 connecting rod bolt on select 115HP EFI four-stroke applications. The supplied Mercury catalog information identifies the following serial-number ranges:

Matching Yamaha Connecting Rod Bearing Set

Rebuilding a Yamaha F75-F115 engine? Pro Marine offers a matching one-size connecting rod bearing set that eliminates the traditional Yamaha color-code selection process.

Pro Marine Yamaha F75-F115 Connecting Rod Bearing Set - F75SSROD

Pro Marine one-size connecting rod bearing set for compatible Yamaha four-stroke engines. This bearing system eliminates the need to select individual factory bearing colors.

When rebuilding the connecting rods, inspect the rod bolts and bearings together before reassembly.

View Yamaha Connecting Rod Bearing Set

Yamaha Engine Rebuild & Maintenance Resources

Need more than the connecting rod bolt? Use the Pro Marine Yamaha sections below to find additional internal engine parts, complete maintenance kits and oil-change kits.

What the Connecting Rod Bolt Does

Connecting rod bolts secure the connecting rod cap to the connecting rod. The assembly surrounds the crankshaft journal and must remain securely clamped while the piston and rod repeatedly change direction at engine speed.

Rod bolts are highly stressed engine fasteners. Correct bolt condition, installation procedure and tightening specification are critical during a powerhead rebuild.

Why Inspect or Replace Connecting Rod Bolts During a Rebuild?

Connecting rod bolts are subjected to repeated tensile loading every time the engine operates. During a powerhead rebuild, inspect the bolts and connecting rod assembly carefully for damage, thread problems, corrosion, stretching or other signs that could compromise clamping force.

Follow the applicable Yamaha or Mercury service procedure for the exact engine being assembled. Torque specifications and whether a fastener should be reused can vary by engine family.

Related Parts to Inspect During Connecting Rod Service

• Connecting rod bearings
• Connecting rod journals
• Connecting rod and cap mating surfaces
• Pistons and piston pins
• Piston rings
• Crankshaft main bearings
• Crankshaft journals
• Oil passages and lubrication system

Key Features and Benefits

• Connecting rod bolt for Yamaha and Mercury applications
• Pro Marine item number RB115
• Replaces Yamaha K1C-A3275-00-00
• Replaces Mercury 880896
• Fits select Yamaha F75 four-stroke engines
• Fits select Yamaha F90 four-stroke engines
• Fits extensive Yamaha F115 / LF115 applications
• Fits select Yamaha F130 / LF130 applications
• Fits select Yamaha VF90 V MAX SHO engines
• Fits select Yamaha VF115 V MAX SHO engines
• Fits select Mercury 115HP EFI serial ranges
• Matching Yamaha connecting rod bearing set linked above
• Yamaha rebuild parts section linked above
• Yamaha service and oil-change kit sections linked above

FAQ

What OEM numbers does RB115 replace?
RB115 cross references Yamaha K1C-A3275-00-00 and Mercury 880896.

Does RB115 fit Yamaha F75?
Yes. Verified applications include select F75LA, F75LB, F75TLR and F75XB configurations.

Does this fit Yamaha F90?
Yes. The supplied fitment includes extensive F90JA, F90JB, F90LA, F90LB, F90TJR, F90TLR, F90TXR, F90XA and F90XB applications.

Does it fit Yamaha F115?
Yes. This bolt is used across a broad range of Yamaha F115 engines, including early F115TLR / TXR models and later JA, JB, LA, LB, XA and XB engine families.

Does it fit Yamaha LF115?
Yes. Verified counter-rotation applications include LF115TXR, LF115XA, LF115XB and related variants.

Does this fit Yamaha F130?
Yes. The supplied fitment includes F130LA, F130XA and LF130XA.

Does RB115 fit Yamaha V MAX SHO?
Yes. Verified applications include select VF90 and VF115 V MAX SHO engine families.

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

What connecting rod bearings go with this bolt?
For compatible Yamaha F75-F115 applications, the Pro Marine F75SSROD connecting rod bearing set is linked above.

Where can I find the other parts needed to rebuild my Yamaha?
Use the Yamaha Engine Rebuild Parts by Model section to shop internal engine components organized by application.

Do you have complete Yamaha maintenance kits?
Yes. Pro Marine has dedicated Yamaha 4-Stroke Service Kits and Yamaha Oil Change Kits .

Searchable Terms

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OEM & Cross Reference Numbers

Yamaha Outboard Fitment

Verified Yamaha applications span multiple generations of 75HP through 115HP four-stroke outboards, including early F80/F100 engines, later F75/F90 applications and extensive F115 / LF115 coverage.

Representative Yamaha Model-Year Coverage

Mercury Outboard Fitment

Mercury catalog information supplied for this gasket confirms both carbureted and EFI four-stroke applications.

Head Gasket & Powerhead Rebuild Options

Pro Marine stocks both an aftermarket version of this individual cylinder head gasket and a complete powerhead gasket kit for compatible engines.

Pro Marine Cylinder Head Gasket - 67111

Pro Marine aftermarket replacement for compatible Yamaha and Mercury applications using the 67F-11181 / 804115 gasket family.

A cost-effective alternative when an OEM Yamaha gasket is not required.

View Pro Marine Head Gasket

Pro Marine Powerhead Gasket Kit - 6803

Rebuilding the complete engine? The 6803 powerhead gasket kit contains the major gaskets and sealing components used during compatible powerhead disassembly and reassembly.

This is usually the better choice for a complete rebuild rather than purchasing only the individual cylinder head gasket.

View Complete Powerhead Gasket Kit

What the Cylinder Head Gasket Does

The cylinder head gasket seals the mating surface between the cylinder head and engine block. It must maintain a seal around the combustion chambers while also separating oil and cooling passages where applicable.

A properly sealing head gasket is critical for maintaining cylinder compression and preventing combustion pressure, cooling water or engine oil from leaking between passages.

Common Signs of a Failed Head Gasket

• Low compression in one or more cylinders
• Overheating
• Cooling-water intrusion into the cylinder
• Combustion gases entering the cooling system
• Visible gasket failure after cylinder-head removal
• Corrosion or erosion around the combustion sealing surface
• Uneven or damaged cylinder-head sealing surface

During Cylinder Head Service

When a cylinder head is removed, inspect both the cylinder head and block sealing surfaces before installing the new gasket. Check for corrosion, erosion, warpage and other damage that could prevent the new gasket from sealing correctly.

Follow the applicable Yamaha or Mercury service manual for bolt tightening sequence, torque specifications and any required inspection or machining procedures.

Individual Head Gasket or Complete Gasket Kit?

Key Features and Benefits

• Genuine Yamaha OEM cylinder head gasket
• 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
• Fits extensive Yamaha F115 and LF115 applications
• Fits select Mercury 75HP carbureted engines
• Fits select Mercury 90HP carbureted engines
• Fits select Mercury 75HP, 80HP, 90HP and 100HP EFI engines
• Fits select Mercury 115HP EFI applications
• Replaces Yamaha 67F-11181-00-00 through 67F-11181-03-00
• Cross references Sierra 18-99094
• Cross references Mercury 804115 / 8041151
• Pro Marine aftermarket gasket linked above
• Complete Pro Marine powerhead gasket kit linked above

FAQ

Is 67111-1 a genuine Yamaha head gasket?
Yes. This listing is for the genuine Yamaha OEM version. The Pro Marine aftermarket 67111 gasket is linked above.

What Yamaha OEM numbers does this gasket replace?
It cross references 67F-11181-00-00, 67F-11181-01-00, 67F-11181-02-00 and 67F-11181-03-00.

Does this fit Yamaha F75?
Yes. Verified applications include select F75TLR and F75LA models.

Does this fit Yamaha F90?
Yes. The supplied fitment includes numerous F90 TJR, TLR, TXR, JA, LA and XA applications.

Does this fit Yamaha F100?
Yes. Verified applications include several F100TLR and F100TXR engines from 1999 through 2003.

Does this fit Yamaha F115?
Yes. The fitment includes extensive F115 TJR, TLR, TXR, JA, LA and XA applications, plus LF115 counter-rotation engines.

Does this fit Mercury 75HP and 90HP carbureted engines?
Yes. Verified Mercury fitment includes both 75HP and 90HP carbureted applications from 0G960500 thru 1B226999.

Does this fit Mercury EFI engines?
Yes. The supplied Mercury data includes select 75HP, 80HP, 90HP, 100HP and 115HP EFI applications.

Does it fit Mercury 115HP EFI?
Yes. Mercury catalog fitment includes 115HP EFI applications in 0T178500 thru 0T800999, 0T801000 thru 1B226999, and later 1B-series applications through 1B366822.

Is there an aftermarket version available?
Yes. The Pro Marine 67111 cylinder head gasket is linked above.

Do you sell a complete gasket kit?
Yes. The Pro Marine 6803 Powerhead Gasket Kit is linked above for compatible applications where a complete engine rebuild or major powerhead repair is being performed.

Should I reuse the old cylinder head gasket?
A cylinder head gasket should be replaced when the cylinder head has been removed. Follow the applicable Yamaha or Mercury service procedure during reassembly.

Searchable Terms

67111-1, Yamaha 67111-1, 67F-11181-00-00, 67F-11181-01-00, 67F-11181-02-00, 67F-11181-03-00, Yamaha 67F-11181, 18-99094, Sierra 18-99094, 804115, 8041151, Yamaha cylinder head gasket, Yamaha F75 head gasket, Yamaha F80 head gasket, Yamaha F90 head gasket, Yamaha F100 head gasket, Yamaha F115 head gasket, Yamaha LF115 head gasket, Mercury 75 carb head gasket, Mercury 90 carb head gasket, Mercury 75 EFI head gasket, Mercury 80 EFI head gasket, Mercury 90 EFI head gasket, Mercury 100 EFI head gasket, Mercury 115 EFI head gasket, Mercury 804115 head gasket, F115TLR head gasket, F115TXR head gasket, F115TJR head gasket, F115JA head gasket, F115LA head gasket, F115XA head gasket, LF115TXR head gasket, 67111, Pro Marine 67111, 6803, Yamaha powerhead gasket kit

OEM & Cross Reference Numbers

Yamaha Outboard Fitment

Mercury Outboard Fitment

OEM & Complete Gasket Kit Options

Pro Marine also stocks the genuine Yamaha OEM version of this head gasket, as well as a complete powerhead gasket kit for compatible engines.

Genuine Yamaha OEM Cylinder Head Gasket - 67111-1

Genuine Yamaha factory version for compatible applications using the 67F-11181 cylinder head gasket family.

Choose this option when an OEM Yamaha gasket is preferred for the repair.

View Yamaha OEM Head Gasket

Pro Marine Powerhead Gasket Kit - 6803

Performing a complete powerhead rebuild? The 6803 gasket kit is the better starting point when multiple engine gaskets and sealing components will be disturbed.

View Complete Powerhead Gasket Kit

What This Cylinder Head Gasket Does

The cylinder head gasket seals the joint between the cylinder head and engine block. It helps contain combustion pressure while sealing the cooling and lubrication passages that pass between the two components.

Proper sealing is critical for maintaining compression and preventing cooling water, combustion gases or engine oil from moving between passages where they do not belong.

Common Signs of Head Gasket Failure

• Low or uneven cylinder compression
• Cooling-water intrusion into one or more cylinders
• Overheating
• Combustion pressure entering the cooling system
• Visible erosion or failure of the old gasket
• Corrosion around the combustion sealing area
• Evidence of leakage between adjacent passages

What to Inspect During Cylinder Head Service

Whenever the cylinder head is removed, inspect the head and block sealing surfaces for corrosion, erosion, pitting, distortion and other damage that could prevent the replacement gasket from sealing correctly.

The applicable Yamaha or Mercury service manual should be followed for surface inspection, tightening sequence, fastener requirements and torque specifications.

Individual Head Gasket vs. Complete Powerhead Gasket Kit

Why Choose the Pro Marine 67111?

• Pro Marine aftermarket cylinder head gasket
• Cost-effective alternative to the Yamaha OEM gasket
• Replaces Yamaha 67F-11181-00-00
• Replaces Yamaha 67F-11181-01-00
• Replaces Yamaha 67F-11181-02-00
• Replaces Yamaha 67F-11181-03-00
• Cross references Sierra 18-99094
• Cross references Mercury 804115 / 8041151
• 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
• Yamaha OEM gasket option linked above
• Complete powerhead gasket kit linked above

FAQ

Is 67111 an OEM Yamaha gasket?
No. This listing is for the Pro Marine aftermarket version. The genuine Yamaha OEM 67111-1 head gasket is linked above.

What Yamaha numbers does Pro Marine 67111 replace?
It cross references 67F-11181-00-00, 67F-11181-01-00, 67F-11181-02-00 and 67F-11181-03-00.

Does 67111 fit Yamaha F75?
Yes. Verified applications include select F75TLR and F75LA models.

Does it fit Yamaha F90?
Yes. The supplied fitment includes numerous F90 TJR, TLR, TXR, JA, LA and XA applications.

Does it fit Yamaha F100?
Yes. Verified applications include several F100TLR and F100TXR models.

Does this gasket fit Yamaha F115?
Yes. Extensive F115 TJR, TLR, TXR, JA, LA and XA applications are included, along with LF115 counter-rotation models.

Does this fit Mercury 75HP and 90HP carbureted engines?
Yes. Verified Mercury applications include 75HP and 90HP carb engines across serial ranges from 0G960500 thru 1B226999.

Does it fit Mercury EFI outboards?
Yes. The supplied fitment includes select 75HP, 80HP, 90HP, 100HP and 115HP EFI engines.

Does it fit Mercury 115 EFI?
Yes. The supplied Mercury catalog information includes several 115HP EFI serial ranges through 1B366822.

Is the OEM Yamaha version available?
Yes. The genuine Yamaha 67111-1 cylinder head gasket is linked above.

Do you sell a complete powerhead gasket kit?
Yes. The Pro Marine 6803 powerhead gasket kit is linked above for compatible applications.

Searchable Terms

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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

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

Compatible Applications

OEM & Cross Reference Numbers

Matching Rod Bearing Sets

These rod bearing sets are commonly used with the main bearing set depending on which Yamaha F75-F115 model you are rebuilding.

Pro Marine F75SSROD Rod Bearing Set

Matching Pro Marine rod bearing set for Yamaha 4-stroke F75-F100 rebuilds.

View F75SSROD Rod Bearing Set

Pro Marine 4CYLSSROD Rod Bearing Set

Matching Pro Marine rod bearing set for Yamaha 4-stroke F115 rebuilds.

View 4CYLSSROD Rod Bearing Set

Required Yamaha FC-W 20W40 Engine Oil

This is not optional: Pro Marine requires Yamaha FC-W 20W40 engine oil when using these Yamaha 4-stroke main and rod bearings.

Yamaha FC-W 20W40 Engine Oil - Gallon

Required Yamaha FC-W 20W40 engine oil for use with these Pro Marine Yamaha 4-stroke bearings.

View Yamaha FC-W 20W40 Gallon

Yamaha FC-W 20W40 Engine Oil - Quart

Quart-size Yamaha FC-W 20W40 oil for topping off, break-in service, or ordering the exact amount needed for your rebuild.

View Yamaha FC-W 20W40 Quart

Popular Yamaha F75-F115 Rebuild Parts

Customers rebuilding Yamaha F75-F115 4-stroke powerheads often replace related piston, ring, valve, gasket, and rod bolt components during the same repair.

Vertex Standard Piston Kit

Standard-size piston kit for Yamaha F75-F115 rebuild work.

View Standard Piston Kit

Vertex .010 Oversize Piston Kit

.010 oversize piston kit for machined-cylinder rebuilds.

View .010 Oversize Piston Kit

Vertex .020 Oversize Piston Kit

.020 oversize piston kit for larger-bore rebuild applications.

View .020 Oversize Piston Kit

STD OEM Ring Kit

Standard-size OEM piston ring kit for Yamaha rebuild service.

View STD OEM Ring Kit

.010 Oversize OEM Ring Kit

OEM .25mm / .010 oversize ring kit for oversize piston rebuilds.

View .010 Oversize OEM Ring Kit

Rod Bolt

Replacement connecting rod bolt for Yamaha F75-F115 rebuild work.

View Rod Bolt

Intake Valve

Replacement intake valve, 96.9mm length and 29mm head diameter.

View Intake Valve

Intake Valve Seal

Replacement intake valve seal for Yamaha 4-stroke rebuild service.

View Intake Valve Seal

Exhaust Valve

Replacement exhaust valve, 99.3mm length and 23.9mm head diameter.

View Exhaust Valve

Exhaust Valve Seal

Replacement exhaust valve seal for Yamaha 4-stroke rebuild service.

View Exhaust Valve Seal

Valve Spring

Replacement valve spring for Yamaha F75-F115 cylinder head service.

View Valve Spring

Cylinder Head Gasket

Replacement head gasket for Yamaha F75-F115 powerhead service.

View Head Gasket

Powerhead Gasket Kit

Powerhead gasket kit for Yamaha F75-F115 rebuild and reassembly work.

View Powerhead Gasket Kit

What This Part is Used For

Main bearings support the crankshaft inside the Yamaha 4-stroke powerhead. During a rebuild, worn or damaged main bearings should be replaced to help restore proper crankshaft support, oil clearance, and long-term engine reliability.

This Pro Marine bearing set is designed to make Yamaha F75-F115 rebuilds more straightforward by removing the need to match Yamaha bearing color codes or measure each location with Plastigauge.

Key Features and Benefits

• Complete Pro Marine main bearing set
• Fits Yamaha 4-stroke F75-F115 applications using the listed OEM numbers
• One-size-fits-all bearing set for the F75-F115 range
• No Yamaha bearing color-code selection required
• No Plastigauge needed
• Designed to simplify Yamaha 4-stroke powerhead rebuilds
• Matching rod bearing sets linked above for F75-F100 and F115 models
• Must be used with Yamaha FC-W 20W40 engine oil

FAQ

What engines does this main bearing set fit?
This set is for Yamaha 4-stroke F75-F115 applications using the listed OEM main bearing numbers.

Do I need to select Yamaha bearing color codes?
No. These Pro Marine Yamaha 4-stroke bearings are one-size-fit-all in the F75-F115 range.

Do I need Plastigauge?
No. Pro Marine notes that Plastigauge is not needed when using these bearings.

What oil must be used with these bearings?
You must use Yamaha FC-W 20W40 engine oil. Links to the gallon and quart are included above.

Which rod bearing set goes with this main bearing set?
Use F75SSROD for Yamaha F75-F100 applications and 4CYLSSROD for Yamaha F115 applications.

Should I verify my OEM numbers?
Yes. Always verify your Yamaha model, serial number, and OEM bearing numbers before ordering internal engine components.

Searchable Terms

4CYLSSMAIN, Yamaha F75 main bearing set, Yamaha F90 main bearing set, Yamaha F100 main bearing set, Yamaha F115 main bearing set, Yamaha 4 stroke main bearings, Pro Marine Yamaha bearings, Yamaha no color code bearings, Yamaha no Plastigauge bearings, 6D8-11416-00-00, 6D8-11416-10-00, 6D8-11416-20-00, 6D8-11417-00-00, 6D8-11417-10-00, 6D8-11417-20-00, 6D8-11417-30-00, 6D8-11418-00-00, 6D8-11418-10-00, 6D8-11418-20-00, 6EK-11416-00-00, 6EK-11416-10-00, 6EK-11416-20-00, 6EK-11416-30-00, 6EK-11416-40-00, 6EK-11417-00-00, 6EK-11417-10-00, 6EK-11417-20-00, 6EK-11417-30-00, 6EK-11417-40-00, 67F-11416-00-00, 67F-11416-10-00, 67F-11416-20-00, 67F-11417-00-00, 67F-11417-10-00, 67F-11417-20-00, 67F-11417-30-00, 67F-11418-00-00, 67F-11418-10-00, 67F-11418-20-00, F75SSROD, 4CYLSSROD, FC2040, FC2040-QT, Yamaha FC-W 20W40 oil

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

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OEM & Cross Reference Numbers

Yamaha Outboard Fitment

Yamaha used this powerhead gasket-set family across several engine generations. The supplied fitment includes both four-stroke and conventional two-stroke applications.

Representative Yamaha Model-Year Coverage

Mercury 75HP & 90HP Carbureted Fitment

Mercury catalog information supplied for this gasket-set family identifies the following 75HP and 90HP carbureted outboard applications.

What is Included

The 6803 Powerhead Gasket Kit is intended to provide the major gaskets and seals required during compatible powerhead disassembly and reassembly.

Exact contents should be compared with the product image and the parts required for your specific engine before beginning the rebuild.

What This Kit is Used For

A powerhead gasket kit is used when rebuilding or extensively servicing the engine powerhead. Removing cylinder heads, crankcases and other major engine components normally requires replacement of the disturbed gaskets and sealing components before the engine is reassembled.

Using a complete gasket kit helps keep the major sealing parts for the rebuild together rather than purchasing each gasket individually.

Common Uses for a Powerhead Gasket Kit

• Complete powerhead rebuild
• Crankshaft and connecting rod repair
• Piston and cylinder repair
• Cylinder-head removal and overhaul
• Crankcase disassembly
• Major internal engine repairs
• Replacement of aged or damaged engine sealing components

Parts to Inspect During a Powerhead Rebuild

• Pistons and piston rings
• Connecting rod bearings
• Connecting rod bolts
• Crankshaft main bearings
• Crankshaft journals
• Cylinder bores
• Intake and exhaust valves on four-stroke models
• Valve stem seals and valve springs
• Oil pump and lubrication passages
• Cooling passages and thermostats

Key Features and Benefits

• Pro Marine powerhead gasket kit
• Pro Marine part number 6803
• Fits select Yamaha F75 four-strokes
• Fits select Yamaha F80 four-strokes
• Fits select Yamaha F90 four-strokes
• Fits select Yamaha F100 four-strokes
• Fits extensive Yamaha F115 / LF115 applications
• Fits select Yamaha 115HP and 130HP applications
• Fits select Mercury 75HP carbureted outboards
• Fits select Mercury 90HP carbureted outboards
• Replaces multiple 6D8-W0001 gasket-set numbers
• Replaces multiple 67F-W0001 gasket-set numbers
• Replaces multiple 68V-W0001 gasket-set numbers
• Cross references Mercury 804345A1 / A2 / A02

FAQ

What engines does Pro Marine 6803 fit?
Verified applications include select Yamaha F75, F80, F90, F100 and F115 four-strokes, select Yamaha 115HP / 130HP engines and select Mercury 75HP and 90HP carbureted outboards.

Does 6803 fit Yamaha F75?
Yes. Verified applications include F75TLRB, F75TLRC, F75TLRD, later F75TLR applications and select F75LA models.

Does it fit Yamaha F90?
Yes. The supplied fitment includes numerous F90 TJR, TLR, TXR, JA, LA and XA configurations.

Does it fit Yamaha F100?
Yes. Verified applications include several F100TLR and F100TXR models from 1999 through 2003.

Does 6803 fit Yamaha F115?
Yes. The supplied fitment includes extensive F115 and LF115 applications from early 2000 model families through later engines.

Does this gasket kit fit Yamaha 115HP 2-stroke engines?
Yes. The supplied application list includes select 115TLR and 115TXR engines from 2002 through later model families.

Does it fit Yamaha 130HP?
Yes. Verified models include 130TLRA/B/C and 130TXRA/B/C.

Does this fit Mercury 75HP?
Yes. Mercury application data shows compatible 75HP carbureted engines from 0G960500 thru 1B226999, divided between the two catalog serial ranges shown above.

Does it fit Mercury 90HP?
Yes. Mercury 90HP carbureted applications are shown for 0G960500 thru 0T800999 and 0T801000 thru 1B226999.

What Yamaha OEM gasket sets does 6803 replace?
It cross references multiple numbers in the 6D8-W0001, 6N6-W0001, 67F-W0001 and 68V-W0001 families listed above.

What Mercury numbers does it replace?
Mercury references include 804345A1, 804345A2 and 804345A02.

Should I order this kit only by horsepower?
No. Always verify the complete Yamaha model number or Mercury serial number because multiple gasket kits can be used within similar horsepower families.

Searchable Terms

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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

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