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New Yamaha 40/50 HP 3-CYL Powerhead [1984-1994] Rebuild Kit

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 Product Description

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.]


This item is eligible for Free Shipping to locations in the Lower 48. Increased fees will apply for Alaska, Hawaii, US Territories, and International Shipping. Shipments to Kentucky will be charged 6% KY sales tax.

If you have any questions, please send us an e-mail at obparts+cs@gmail.com. To ensure that the proper product is ordered, your motor's model number is required.

Didn't find the Outboard Part you needed?  We have many additional parts in our warehouse.  Please contact us directly to let us do a custom search for the part you need. 

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