New WSM / Mercury & Mariner 1977-1990 50-60/70 HP 3-CYL Powerhead Rebuild Kit

Featuring all the parts needed to effectively rebuild an outboard powerhead in one convenient package, our powerhead rebuild kits offer a combination of cast WSM Pistons complete with Japanese rings, pins, and clips, the highest quality gaskets available, and the necessary crank bearings, rod bearings, and rod bolts. These kits are available with Standard-Size Pistons or .010/.020/.030/.040 Oversize Pistons, so please specify when placing an order.

This rebuild kit is designed for use with Mercury/Mariner 50-60/70 HP 3-Cylinder Low dome Crossflow Powerheads with a 2.875" Bore Size; this kit fits 1977-1983 70 HP and 1984-1990 50-60 HP Models. The kit includes the following:

Three Pistons [Complete with rings, pins, and clips]

One Gasket Kit [including 1 Head Gasket, 1 Adaptor Plate, 1 Base Gasket, 1 Water Housing Tube Seal, 1 Transfer Port, 2 Carburetor Gaskets, 2 Exhaust Gaskets, 1 Baffle Plate, 1 Exhaust Tube, 1 Upper End Cap O-Ring, 1 Lower End Cap O-Ring, 2 Crank Cases, 3 Upper/Lower End Cap Seals, 1 Transfer Passage Cover Gasket, and 2 Carb Gaskets]

Main Bearings [Two Upper/Lower and Two Center]

Rod Bearings [Three Upper and Three Lower]

Six Rod Bolts

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.