New WSM / Yamaha 1984-1994 40 & 50 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 Yamaha 40/50 HP 3-Cylinder Powerheads from 1984 to 1994. The kit includes the following:

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

One Gasket Kit [including 1 Head Gasket, 1 Cylinder Head Gasket, 1 Base Gasket, 2 Valve Seat Gaskets, 1 Exhaust Inner Gasket, 1 Exhaust Outer Gasket, 1 Lower Crank O Ring, 1 Fuel Filter O-Ring, 1 Thermostat Gasket, 2 Lower Housing Oil Seals, 1 Upper Crank Oil Seal, 1 Lower Crank Oil Seal, 1 Fuel Pump Gasket, 1 Upper Housing Gasket, 3 Carbureter Mounting Gaskets, 3 Air Box Seal Seals, and 1 Head Plug Gasket]

Main Bearings [One Upper and One Lower]

Rod Bearings [Three Upper] [Note: this kit does not include Lower Rod Bearings due to the model of the powerhead.]

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.