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Yamaha F115 Mercury 115 EFI OEM .25mm Oversize Ring Kit 11606
Yamaha 115 HP 4 Stroke
Bore Size 79.25mm
| Quantity | Price |
| 1 | 80.99 |
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
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