Description
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!
The pistons in this kit are available in STD, .010″, .015″ .020″, 030″ & .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
Standard Bore size: 3.375″
Fits
Mercury / Mariner
70hp 1987-1990
75hp 1990-1993
80hp 1987-1990
90hp 1987-1993
Replaces: 7437A3, 8600A3, 9137A9, 8199A3, 8200A4, 8600A3, 73645A32, 73645A87
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