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WSM 010-812-12 Top End Kit (537cc) - 0.50mm Oversize to 75.50mm Bore


Generally ships to addresses in the contiguous United States the same business day if ordered by 12:15PM Central Time!

Bore: 75.50mm
Sizing: 0.50mm Oversize

The piston walls are treated with a nonabrasive coating which reduces heat and friction for added horsepower and greatly extends piston life.
Made to exact OEM specifications.

Kawasaki JS550 1982-1989
Kawasaki JS550 550SX 1990

Please Note: