This New Piston Kit fits a wide range of Mercury, Mariner, and Yamaha 25–60 HP 4-Stroke outboards. Designed for OEM-level durability and performance, this kit restores compression, efficiency, and reliability in mid-range 4-stroke engines.
Includes piston, rings, pin, and clips—everything needed for a proper top-end rebuild.
Product Features
- Fits Mercury / Mariner / Yamaha 25–60 HP 4-Stroke engines
- OEM-matched specifications for proper compression and longevity
- Includes piston, wrist pin, piston rings, and circlips
- Ideal for restoring performance on worn or damaged cylinders
Fitment Compatibility
Mercury / Mariner 4-Stroke
| Make | Model | HP | Year(s) |
|---|---|---|---|
| Mercury | 2 Cyl 4-Stroke | 25 HP | 1998–2006 |
| Mercury | 3 Cyl 4-Stroke | 30 HP | 1999–2008 |
| Mercury | 3 Cyl 4-Stroke | 40 HP | 2002–2013 |
| Mercury | 4 Cyl 4-Stroke | 40 HP | 1999–2003 |
| Mercury | 4 Cyl 4-Stroke | 50 HP | 2001–2003 |
| Mercury | 4 Cyl 4-Stroke | 60 HP | 2001–2003 |
| Mercury | 4 Cyl 4-Stroke EFI | 40 HP | 2002–2008 |
| Mercury | 4 Cyl 4-Stroke EFI | 60 HP | 2002–2012 |
Yamaha 4-Stroke
| Make | Model | HP | Year(s) |
|---|---|---|---|
| Yamaha | 2 Cyl 4-Stroke | 25 HP | 1998–2007 |
| Yamaha | 3 Cyl 4-Stroke | 30 HP | 2001–2006 |
| Yamaha | 3 Cyl 4-Stroke | 40 HP | 2000–2008 |
Additional Information
-
Direct replacement for OEM components
-
Suitable for full top-end service or cylinder rebuilds
Shipping Information
Additional shipping fees to Alaska, Hawaii, U.S. Territories, or international destinations will be calculated after checkout.
You will receive an email and a PayPal money request for any additional charges.
(Some items are excluded from international shipping.)
Customer Support
For questions or compatibility confirmation, email: customerservice@marinepartswarehouse.com
Please include your engine model number.
