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Vertex Yamaha / Mercury 4-Stroke .010 Oversize Piston Kit
Yamaha F90-F115 & Mercury 115 EFI Vertex .010 Oversize Piston Kit - 24228025
The Vertex 24228025 Piston Kit is a .010 oversize / .25mm oversize piston for select Yamaha four-stroke and Mercury 115HP EFI outboards.
Verified engine families include extensive Yamaha F115 and LF115 applications, select Yamaha F75 and F90 engines, and select Mercury 115HP EFI four-stroke outboards.
This piston is part of the same engine family as the Yamaha 60C-W1164 and 68V-W1164 piston assemblies and Mercury 880895 piston assemblies.
This is NOT a standard-size piston.
The cylinder must be measured and properly machined for the .010 / .25mm oversize piston before installation.
Do not install this piston into a standard 79.00mm bore.
Piston Size & Application
| Specification | Details |
|---|---|
| Brand | Vertex |
| Part Number | 24228025 |
| Piston Size | .010 Oversize |
| Metric Oversize | .25mm Oversize |
| Standard Bore Reference | 79.00mm |
OEM & Cross Reference Piston Family
| Brand / Type | Part Number |
|---|---|
| Vertex | 24228025 |
| First OEM Reference | 60C-W1164-10-00 |
| Yamaha OEM Family | 60C-W1164-00-00 |
| Yamaha OEM Family | 60C-W1164-01-00 |
| Yamaha OEM Family | 68V-W1164-00-00 |
| Yamaha OEM Family | 68V-W1164-01-00 |
| Yamaha OEM Family | 68V-W1164-02-00 |
| Mercury OEM Family | 880895A05 |
| Mercury OEM Family | 880895A14 |
| Mercury OEM Family | 880895T1 |
Yamaha Outboard Fitment
| Engine Family | Verified Applications |
|---|---|
| Yamaha F75 | F75TLRB - 2003 and F75TLRC - 2004. |
| Yamaha F90 | F90TJRB / F90TLRB - 2003 and F90TJRC / F90TLRC - 2004. |
| Yamaha F115 - Early Models | F115TLRY / F115TXRY - 2000, F115TLRZ / F115TXRZ - 2001, F115TJRA / F115TLRA / F115TXRA - 2002, F115TJRB / F115TLRB / F115TXRB - 2003, F115TJRC / F115TLRC / F115TXRC - 2004, and F115TJRD / F115TLRD / F115TXRD - 2005. |
| Yamaha F115 - Later Models | F115JA, F115LA, F115TJR, F115TLR, F115TXR and F115XA, including the supplied 04, 011, 061 and 0405-0411 suffix variants. |
| Yamaha LF115 | LF115TXRY - 2000, LF115TXRZ - 2001, LF115TXRA - 2002, LF115TXRB - 2003, LF115TXRC - 2004, LF115TXRD - 2005, plus later LF115TXR and LF115XA applications. |
Mercury 115HP EFI Fitment
| Engine | Serial Number Range |
|---|---|
| Mercury 115HP EFI | 0T178500 thru 0T800999 |
| Mercury 115HP EFI | 0T801000 thru 1B226999 |
| Mercury 115HP EFI | 1B227000 thru 1B366822 |
Oversize piston selection should always be based on actual cylinder measurements.
If the bore remains within standard-size limits, use a 79.00mm standard piston. If machining is required, choose the correct .010 or .020 piston based on the finished bore size.
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 PistonYamaha 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 RingsReplacement 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 SleeveMain & 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 SetComplete 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
Piston Size Guide
| Finished Cylinder Size | Piston Options |
|---|---|
| 79.00mm Standard | Vertex 24228STD or Wiseco 3207PS |
| .25mm / .010 Oversize | Vertex 24228025 |
| .50mm / .020 Oversize | Vertex 24228050 or Wiseco 3207P2 |
| Cylinder Requires Sleeving | Inspect 1185SA / 1185SC sleeve options and machine the finished cylinder to the specification required by the selected piston. |
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.
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 or return?
Contact Pro Marine
Phone: 941-721-3000
Searchable Terms
24228025, Vertex 24228025, Yamaha F115 .010 piston, Yamaha F115 .25mm piston, Yamaha F115 oversize piston, Yamaha LF115 .010 piston, Yamaha F90 oversize piston, Mercury 115 EFI .010 piston, Mercury 115 oversize piston, Yamaha .010 piston, Yamaha .25mm piston, 60C-W1164-10-00, 60C-W1164-00-00, 60C-W1164-01-00, 68V-W1164-00-00, 68V-W1164-01-00, 68V-W1164-02-00, 880895A05, 880895A14, 880895T1, Yamaha 60C-W1164, Yamaha 68V-W1164, Mercury 880895, 24228STD, Vertex standard piston, 24228050, Vertex .020 piston, 3207PS, Wiseco standard piston, 3207P2, Wiseco .020 piston, 11605, Yamaha standard rings, 11606, 6D8-11604-00-00, Yamaha .010 rings, 1185SA, 1185SC, Yamaha F115 cylinder sleeve, 4CYLSSMAIN, Yamaha F115 main bearings, 4CYLSSROD, Yamaha F115 rod bearings, 6803, Yamaha F115 gasket kit, Yamaha F115 rebuild, Mercury 115 EFI rebuild
60C-W1164-11-00
68V-W1164-10-00
68V-W1164-11-00
68V-W1164-12-00
880895A12
880895A16
880895T10
9738A8
9738T10
9737A8
Vertex Yamaha / Mercury 4-Stroke .020 Oversize Piston Kit
Yamaha F90-F115 & Mercury 115 EFI Vertex .020 Oversize Piston Kit - 24228050
The Vertex 24228050 Piston Kit is a .020 oversize / .50mm oversize piston for select Yamaha four-stroke and Mercury 115HP EFI outboards.
Verified engine families include extensive Yamaha F115 and LF115 applications, select Yamaha F75 and F90 engines, and select Mercury 115HP EFI four-stroke outboards.
This piston is part of the same engine family as Yamaha 60C-W1164 and 68V-W1164 piston assemblies and Mercury 880895 piston assemblies.
This is NOT a standard-size piston.
The cylinder must be accurately measured and properly machined for the .020 / .50mm oversize piston before installation.
Do not install this piston into a standard 79.00mm bore.
Piston Size & Application
| Specification | Details |
|---|---|
| Brand | Vertex |
| Part Number | 24228050 |
| Piston Size | .020 Oversize |
| Metric Oversize | .50mm Oversize |
| Nominal Diameter | 79.5mm |
| Standard Bore Reference | 79.00mm |
OEM & Cross Reference Piston Family
| Brand / Type | Part Number |
|---|---|
| Vertex | 24228050 |
| Yamaha OEM Family | 60C-W1164-00-00 |
| Yamaha OEM Family | 60C-W1164-01-00 |
| Yamaha OEM Family | 68V-W1164-00-00 |
| Yamaha OEM Family | 68V-W1164-01-00 |
| Yamaha OEM Family | 68V-W1164-02-00 |
| Mercury OEM Family | 880895A05 |
| Mercury OEM Family | 880895A14 |
| Mercury OEM Family | 880895T1 |
Yamaha Outboard Fitment
| Engine Family | Verified Applications |
|---|---|
| Yamaha F75 | F75TLRB - 2003 and F75TLRC - 2004. |
| Yamaha F90 | F90TJRB / F90TLRB - 2003 and F90TJRC / F90TLRC - 2004. |
| Yamaha F115 - Early Models | F115TLRY / F115TXRY - 2000, F115TLRZ / F115TXRZ - 2001, F115TJRA / F115TLRA / F115TXRA - 2002, F115TJRB / F115TLRB / F115TXRB - 2003, F115TJRC / F115TLRC / F115TXRC - 2004, and F115TJRD / F115TLRD / F115TXRD - 2005. |
| Yamaha F115 - Later Models | F115JA, F115LA, F115TJR, F115TLR, F115TXR and F115XA, including the supplied 04, 011, 061 and 0405-0411 suffix variants. |
| Yamaha LF115 | LF115TXRY - 2000, LF115TXRZ - 2001, LF115TXRA - 2002, LF115TXRB - 2003, LF115TXRC - 2004, LF115TXRD - 2005, plus later LF115TXR and LF115XA applications. |
Mercury 115HP EFI Fitment
| Engine | Serial Number Range |
|---|---|
| Mercury 115HP EFI | 0T178500 thru 0T800999 |
| Mercury 115HP EFI | 0T801000 thru 1B226999 |
| Mercury 115HP EFI | 1B227000 thru 1B366822 |
Oversize piston selection should be based on actual cylinder measurements, not only on the condition of the original piston.
Measure bore diameter, taper and out-of-round condition before machining. The cylinder should then be finished to the piston manufacturer's required piston-to-wall clearance.
Other Piston Options
Vertex Standard Piston - 24228STD
Size: 79.00mm Standard
Standard Vertex piston for compatible cylinders that remain within factory bore-size limits.
First OEM: 68V-W1164-02-00
View Vertex Standard Piston
Vertex .010 Oversize Piston - 24228025
Size: .010 / .25mm Oversize
Intermediate oversize Vertex option for cylinders that can be finished at .010 oversize.
First OEM Reference: 60C-W1164-10-00
View Vertex .010 Piston
Wiseco Standard Piston - 3207PS
Size: 79.00mm Standard
Alternate standard-size Wiseco piston for compatible Yamaha F115 and Mercury 115 EFI engine rebuilds.
View Wiseco Standard Piston
Wiseco .020 Oversize Piston - 3207P2
Size: 79.5mm / .020 Oversize
Alternate .020 oversize Wiseco option for cylinders properly machined to the required finished bore.
View Wiseco .020 PistonYamaha OEM Piston Ring Options
Yamaha OEM Standard Ring Kit - 11605
Size: Standard 79mm
First OEM: 6D8-11603-00-00
OEM standard ring option for compatible standard-size 79mm pistons.
View Standard OEM Rings
Yamaha OEM .25mm Oversize Ring Kit - 11606
Size: .25mm / approximately .010 Oversize
First OEM: 6D8-11604-00-00
OEM ring option for the corresponding Yamaha .25mm oversize piston configuration.
View .25mm OEM RingsReplacement Cylinder Sleeves
If cylinder damage cannot be corrected with a .020 overbore, replacement cylinder sleeves may be required.
Advanced Sleeve 1185SC
Straight 4-stroke cylinder sleeve for compatible engine rebuilding.
Verify sleeve dimensions, block bore and finished cylinder requirements before machining.
View 1185SC Sleeve
Advanced Sleeve 1185SA
Alternate replacement cylinder sleeve option for compatible Yamaha / Mercury four-stroke engine rebuilds.
Compare sleeve dimensions with the block before installation.
View 1185SA SleeveMain & Connecting Rod Bearings
Pro Marine Main Bearing Set - 4CYLSSMAIN
Complete one-size crankshaft main bearing set for compatible Yamaha four-cylinder engines.
First OEM Reference: 6D8-11416-00-00
Eliminates Yamaha bearing color-code selection and Plastigauge sizing.
View Main Bearing Set
Pro Marine F115 Rod Bearing Set - 4CYLSSROD
Complete one-size connecting rod bearing set for compatible Yamaha F115 applications.
First OEM Reference: 68V-11656-00-00
Eliminates the factory Yamaha bearing color selection process.
View Rod Bearing SetComplete Powerhead Gasket Kit
Pro Marine Powerhead Gasket Kit - 6803
Complete gasket kit for compatible Yamaha F75-F115 powerhead rebuilds.
Recommended when the engine is disassembled for piston replacement, cylinder machining, bearing service or a complete powerhead rebuild.
OEM Families: 6D8-W0001, 67F-W0001 and 68V-W0001
Piston Size Guide
| Finished Cylinder Size | Piston Options |
|---|---|
| 79.00mm Standard | Vertex 24228STD or Wiseco 3207PS |
| .010 / .25mm Oversize | Vertex 24228025 |
| .020 / .50mm Oversize | Vertex 24228050 or Wiseco 3207P2 |
| Cylinder Requires Sleeving | Inspect 1185SA / 1185SC replacement sleeve options and machine the finished cylinder to suit the selected piston. |
Shop Yamaha Engine Rebuild Parts by Model
Find additional pistons, rings, bearings, valves, gaskets, sleeves and related internal engine components in Pro Marine's Yamaha Engine Rebuild Parts by Model section.
Shop Yamaha Engine Rebuild Parts by Model
When to Use a .020 Oversize Piston
A .020 oversize piston is used when cylinder wear, scoring or damage requires enough machining that the cylinder can no longer remain at standard size or .010 oversize.
Before machining, accurately measure cylinder diameter, taper and out-of-round. The finished bore must provide the correct piston-to-wall clearance for the Vertex piston.
When Should a Cylinder be Sleeved Instead?
If cylinder damage, corrosion or previous machining prevents the bore from being restored at .020 oversize, a replacement cylinder sleeve may be required.
The replacement sleeve is installed and then finished to the correct bore for whichever piston size will be used in the rebuilt engine.
Parts to Inspect During a Powerhead Rebuild
- Cylinder bore diameter
- Cylinder taper and out-of-round
- Piston-to-wall clearance
- Piston rings and ring end gap
- Connecting rods
- Connecting rod bolts
- Connecting rod bearings
- Crankshaft main bearings
- Crankshaft journals
- Cylinder head and valves
- Valve stem seals
- Oil passages and lubrication system
- Powerhead gaskets and seals
Key Features and Benefits
- Vertex oversize piston kit
- Vertex part number 24228050
- .020 / .50mm oversize
- 79.5mm nominal piston size
- Fits extensive Yamaha F115 and LF115 applications
- Fits select Yamaha F75 and F90 applications
- Fits select Mercury 115HP EFI engines
- Vertex standard piston linked above
- Vertex .010 oversize piston linked above
- Wiseco standard and .020 piston alternatives linked above
- Yamaha OEM ring options linked above
- Replacement cylinder sleeves linked above
- Main and connecting rod bearing sets linked above
- Complete powerhead gasket kit linked above
FAQ
What size is Vertex 24228050?
It is a .020 / .50mm oversize piston, approximately
79.5mm.
Is 24228050 a standard-size piston?
No. The standard Vertex piston is the
24228STD 79.00mm piston linked above.
Can I install this piston in a standard cylinder?
No. The cylinder must be properly bored and finished for the .020 oversize
piston.
Does this fit Yamaha F115?
Yes. The supplied engine fitment includes extensive Yamaha F115 and LF115
applications.
Does it fit Mercury 115 EFI?
Yes. Supplied Mercury fitment includes
0T178500 thru 0T800999,
0T801000 thru 1B226999, and
1B227000 thru 1B366822.
Do you have a .010 oversize piston?
Yes. The Vertex 24228025 is the .010 / .25mm oversize option.
Do you have another .020 piston option?
Yes. The Wiseco 3207P2 79.5mm piston is an alternate
.020 oversize option.
What standard pistons are available?
Pro Marine stocks both the Vertex 24228STD and
Wiseco 3207PS standard 79mm pistons.
Are replacement cylinder sleeves available?
Yes. Advanced Sleeve 1185SA and 1185SC options are linked above.
What main bearings are available?
The Pro Marine 4CYLSSMAIN main bearing set is linked above.
What connecting rod bearings are available?
The Pro Marine 4CYLSSROD connecting rod bearing set is linked above.
Is a complete powerhead gasket kit available?
Yes. The Pro Marine 6803 Powerhead Gasket Kit is linked above.
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 or return?
Contact Pro Marine
Phone: 941-721-3000
Searchable Terms
24228050, Vertex 24228050, Yamaha F115 .020 piston, Yamaha F115 .50mm piston, Yamaha F115 79.5mm piston, Yamaha F115 oversize piston, Yamaha LF115 .020 piston, Yamaha F90 oversize piston, Mercury 115 EFI .020 piston, Mercury 115 oversize piston, Mercury 115 79.5mm piston, 60C-W1164-00-00, 60C-W1164-01-00, 68V-W1164-00-00, 68V-W1164-01-00, 68V-W1164-02-00, 880895A05, 880895A14, 880895T1, Yamaha 60C-W1164, Yamaha 68V-W1164, Mercury 880895, 24228STD, Vertex standard piston, 24228025, Vertex .010 piston, 3207PS, Wiseco standard piston, 3207P2, Wiseco .020 piston, 11605, Yamaha F115 standard rings, 11606, Yamaha F115 oversize rings, 1185SA, 1185SC, Yamaha F115 cylinder sleeve, 4CYLSSMAIN, Yamaha F115 main bearings, 4CYLSSROD, Yamaha F115 rod bearings, 6803, Yamaha F115 gasket kit, Yamaha F115 engine rebuild, Mercury 115 EFI rebuild
9737A4
9737T4
9738A4
9738T4
63P-W1164-01-00
6P2-11631-01-B0
6P2-11631-01-93
6P2-11631-10-93
6P2-11631-11-93
