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18-3983
822321A1
Genuine Yamaha OEM Oversize Piston Ring Kit
Yamaha F115 & Mercury 115 EFI .25mm / .010 Oversize Piston Ring Kit - 11606
The 11606 Piston Ring Kit is a genuine Yamaha OEM .25mm oversize piston ring set for compatible Yamaha and Mercury four-stroke engine rebuilds.
This ring set is intended for engines that have been machined for the corresponding .25mm / approximately .010 oversize piston. It should not be used with a standard 79mm piston and standard bore.
This ring kit is the matching OEM oversize option for the Vertex 24228025 .010 oversize piston linked below.
These are NOT standard-size piston rings.
Use only with the corresponding oversize piston and a cylinder that has been properly measured and machined for that piston size.
OEM & Cross Reference Numbers
| Brand / Type | Part Number |
|---|---|
| Pro Marine Item | 11606 |
| Yamaha OEM | 6D8-11604-00-00 |
Ring Size
| Specification | Details |
|---|---|
| Ring Type | Oversize Piston Ring Set |
| Oversize | .25mm |
| Approximate Inch Oversize | .010" |
| Standard Bore Reference | 79mm |
| Brand | Yamaha OEM |
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.
| Engine Family | Application |
|---|---|
| Yamaha F115 / LF115 | Compatible applications within the Yamaha F115 and LF115 piston family when using the corresponding .25mm oversize piston. |
| Yamaha F75 / F90 | Select compatible applications within the shared 79mm piston family. |
| Mercury 115 EFI | Compatible Mercury 115 EFI four-stroke applications using the corresponding Yamaha-derived piston family. |
This oversize ring kit should not be selected by horsepower alone.
Verify the engine model or serial number, piston part number, and finished cylinder bore before ordering.
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 PistonNeed 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
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 SleeveMain & 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 SetComplete 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.
Standard vs. Oversize Ring Selection
| Piston / Bore Size | Ring Option |
|---|---|
| Standard 79mm | 11605 Yamaha OEM Standard Ring Kit |
| .25mm / approximately .010 Oversize | 11606 Yamaha OEM Oversize Ring Kit |
| .50mm / .020 Oversize | Use the ring package specified for the exact .020 oversize piston. |
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.
Dealer Discounts & Store Policies
Dealer / Marine Industry Discounts
Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.
Shipping Policy
- Free shipping on orders over $100 continental U.S.
- Orders received before 5:30 PM EST ship the same business day.
- Typical delivery time is 1-5 business days.
30-Day Return Policy
- Returns accepted within 30 days of delivery.
- Parts must be new, unused, and in original packaging.
- Installed parts are not returnable.
- Return authorization is required before sending items back.
Need help with an order?
Contact Pro Marine
Phone: 941-721-3000
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
6D8-11604-01-00
6D8-11604-10-00
6D8-11604-11-00
67F-11604-00-00
67F-11604-01-00
804108T1
880898T02
880898T1
Genuine Yamaha OEM Standard Piston Ring Kit
Yamaha F75-F115 & Mercury 75-115HP Standard Piston Ring Kit - 11605
The 11605 Piston Ring Kit is a genuine Yamaha OEM standard-size piston ring set for select Yamaha F75, F80, F90, F100, F115 and LF115 four-stroke outboards.
This ring family also crosses to numerous Mercury four-stroke applications including select 75HP and 90HP carbureted engines and 75HP, 80HP, 90HP, 100HP and 115HP EFI engines.
It replaces Yamaha 6D8-11603 and 67F-11603 ring assemblies and Mercury 804107T1, 880897T02 and 880897T1.
This listing is for the standard-size piston ring kit.
If your cylinders have been bored oversize, do not use standard rings. Pro Marine also stocks the Yamaha OEM .25mm / approximately .010 oversize ring kit linked below.
OEM & Cross Reference Numbers
| Brand / Type | Part Number |
|---|---|
| Pro Marine Item | 11605 |
| Yamaha OEM | 6D8-11603-00-00 |
| Yamaha OEM | 6D8-11603-01-00 |
| Yamaha OEM | 6D8-11603-10-00 |
| Yamaha OEM | 6D8-11603-11-00 |
| Yamaha OEM | 67F-11603-00-00 |
| Yamaha OEM | 67F-11603-01-00 |
| Mercury OEM | 804107T1 |
| Mercury OEM | 880897T02 |
| Mercury OEM | 880897T1 |
Yamaha Outboard Fitment
Yamaha used this standard piston ring family across several generations of inline four-cylinder four-stroke engines.
| Engine Family | Verified Applications |
|---|---|
| Yamaha F75 | F75TLRD - 2005; F75LA, F75LA_0112, F75TLR and F75TLR_041 later applications. |
| Yamaha F80 | F80TLRX - 1999, F80TLRY - 2000, F80TLRZ - 2001, F80TJRA / F80TLRA - 2002, F80TJRB / F80TLRB - 2003, plus listed F80TXR applications. |
| Yamaha F90 | F90TJRD, F90TLRD and F90TXRD - 2005; later F90JA, F90LA, F90TJR, F90TLR, F90TXR and F90XA applications. |
| Yamaha F100 | F100TLRX / F100TXRX - 1999, F100TLRY / F100TXRY - 2000, F100TLRZ / F100TXRZ - 2001, F100TLRA / F100TXRA - 2002, F100TLRB / F100TXRB - 2003. |
| Yamaha F115 - Early Models | F115TLRY / F115TXRY - 2000, F115TLRZ / F115TXRZ - 2001, F115TJRA / F115TLRA / F115TXRA - 2002, F115TJRB / F115TLRB / F115TXRB - 2003, F115TJRC / F115TLRC / F115TXRC - 2004, F115TJRD / F115TLRD / F115TXRD - 2005. |
| Yamaha F115 - Later Models | F115JA, F115LA, F115TJR, F115TLR, F115TXR and F115XA, including the supplied 011, 061 and 0405-0411 suffix applications. |
| Yamaha LF115 | LF115TXRY - 2000, LF115TXRZ - 2001, LF115TXRA - 2002, LF115TXRB - 2003, LF115TXRC - 2004, LF115TXRD - 2005, plus later LF115TXR and LF115XA applications. |
Mercury Outboard Fitment
| Mercury Engine | Serial Number Range |
|---|---|
| 75HP Carb | 0G960500 thru 0T800999 |
| 75HP Carb | 0T801000 thru 1B226999 |
| 90HP Carb | 0G960500 thru 0T900999 |
| 90HP Carb | 0T801000 thru 1B226999 |
| 75HP EFI | 1B172291 thru 1B366822 |
| 80HP EFI | 1B227000 thru 1B366822 |
| 90HP EFI | 1B172291 thru 1B366822 |
| 100HP EFI | 1B227000 thru 1B366822 |
| 115HP EFI | 0T178500 thru 0T800999 |
| 115HP EFI | 0T801000 thru 1B226999 |
| 115HP EFI | 1B227000 thru 1B366822 |
Do not order piston rings by horsepower alone. Verify the complete Yamaha model number or Mercury serial number and confirm the original ring or piston family.
These are standard-size piston rings. Measure the cylinder bore before ordering, especially during a powerhead rebuild.
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 PistonNeed .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.
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 SleeveMain & 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 SetComplete 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
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?
| Cylinder / Piston Size | Ring Option |
|---|---|
| Standard 79mm | 11605 Standard Yamaha OEM Ring Kit |
| .25mm / approximately .010 Oversize | 11606 Yamaha OEM Oversize Ring Kit |
| .50mm / .020 Oversize | Use the ring package specified for the exact .020 oversize piston being installed. |
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.
Yamaha Outboard Engine Rebuild Parts by Model
Browse rebuild components organized by Yamaha horsepower and engine family to find the correct pistons, bearings, valves, sleeves and gasket components for your powerhead rebuild.
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.
Dealer Discounts & Store Policies
Dealer / Marine Industry Discounts
Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.
Shipping Policy
- Free shipping on orders over $100 continental U.S.
- Orders received before 5:30 PM EST ship the same business day.
- Typical delivery time is 1-5 business days.
30-Day Return Policy
- Returns accepted within 30 days of delivery.
- Parts must be new, unused, and in original packaging.
- Installed parts are not returnable.
- Return authorization is required before sending items back.
Need help with an order?
Contact Pro Marine
Phone: 941-721-3000
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
6D8-11603-01-00
6D8-11603-10-00
6D8-11603-11-00
67F-11603-00-00
67F-11603-01-00
804107T1
880897T02
880897T1
