This Powerhead Base Gasket is designed for Mercury 225 EFI 4-Stroke engines and Yamaha 200–250 HP 4-Stroke (2003 and newer). It restores proper sealing between the powerhead and midsection to maintain correct crankcase pressure and prevent water intrusion. Manufactured to meet OEM specifications for precise fit and long-term reliability.
Ideal for rebuilds, routine maintenance, or powerhead installation.
Product Features
- Precision-built replacement gasket
- Fits Mercury 225 EFI 4-Stroke outboards
- Fits Yamaha 200–250 HP 4-Stroke (2003-Up)
- Ensures proper compression and sealing integrity
- Direct replacement for multiple OEM part numbers
Additional Information
- High-quality construction for durability and long service life
- Critical sealing component when reinstalling or servicing the powerhead
- Compatible with several Yamaha and Mercury 4-stroke platforms
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.
