Powerhead Rebuild Kit - Yamaha 40/50hp 1984-1994 3 Cyl
Powerhead Rebuild Kit - Yamaha 40/50hp 1984-1994 3 Cyl - Standard Bore / Complete Kit (with bearings) is backordered and will ship as soon as it is back in stock.
Condition: New
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Delivery and Shipping
Delivery and Shipping
Most orders placed before 11am EST Monday-Friday are shipped same day. Orders placed after this time may ship same day or the following business day. Estimated delivery dates are shown with the shipping options in the checkout. If we cannot ship your order within the normal processing time, we will reach out same day (Monday-Friday). Additional shipping information can be found HERE.
Powerhead Rebuild Kit - Yamaha 40/50hp 1984-1994 3 Cyl
Powerhead Rebuild Kit
We offer two kit options for this application.
A "Short Kit" which includes: Piston Kits (piston, Riken Rings, wrist pin & Clips), Complete Powerhead Gasket Kit with Crank Seals and Rod bolts.
A "Complete Kit" which includes everything in the short kit, plus contains all powerhead bearings (except center mains (press together crank))!
The pistons in this kit are available in STD, .010", .020", .030" and .040" oversize. To order your kit, select your desired options, then click "add to cart". If your cylinders require different size pistons, you will need to give us a call to place the order
For the crank main bearings, this kit includes the upper and lower main bearings only. The crankshaft of these engines is pressed together, and the center main bearings are not serviceable. If your center main bearings are bad, we sell a new crankshaft for this application also.
Fits
Yamaha
40hp 1984-1994
50hp 1984-1994
The 1984-88 engines had 3-ring pistons which are no longer available. These newer style 2-ring pistons are used as a direct replacement with the advantage of less drag due to one less ring.
Replaces: 6H4-W0001-03-00, 6H4-W0001-04-00, 6H4-11631-01-95, 6H4-11635-01-00, 6H4-11636-01-00
PLEASE NOTE: This item may fit additional models to those listed above. Please DO NOT order based solely on application info above. You MUST compare the OEM number of the part for your engine to those listed above to ensure correct fitment of this part for your application! Failure to order this way will likely lead to the wrong part being ordered!
