Bring new life to your outboard engine with this complete Mercury/Mariner powerhead rebuild kit, featuring everything you need for a reliable and long-lasting engine overhaul. This kit perfectly matches Mercury & Mainer 4-cylinder Lowdome Crossflow Powerheads with a 2.875” bore size. The WSM kits fit the following models:
- 85 HP (1973–1977)
- 80 HP (1978–1983)
- 75 HP (1984–1986)
What’s Included in the Kit
The all-in-one rebuild solution saves you time and money by bundling all critical engine components in one convenient package.
This kit comes with:
- Four Cast WSM Pistons, complete with Japanese rings, pins, and clips
- One Gasket Kit
- Main Bearings – One Inline Upper, Two Center, and One Lower
- Four upper and lower Rod Bearings
- Eight Rod Bolts
Key Benefits
- Complete Convenience – Everything you need to rebuild your Mercury & Mariner outboard in one kit.
- Precision Fit – Available in standard-size pistons or oversize options like .010, .020, .030, .040 to match the engine’s wear and rebuild requirements.
- Superior Quality – Japanese rings, highest quality gaskets, and WSM quality known for strength, reliability, and smooth performance.
- Cost & Time Effective Solution – This kit eliminates the hassle of searching for everything and allows you to DIY the rebuild.
SHIPPING: Additional shipping fees to Alaska, Hawaii, US Territories, or International Shipping will be calculated after checkout. You will receive an email and a PayPal money request for the additional shipping charges at the email address provided. (Some items are excluded from international shipping)
If you have any questions, please contact us through e-mail at customerservice@marinepartswarehouse.com. Please provide your engine model number to help confirm compatibility.
