Description
Upgrade or rebuild your engine with the Wiseco Piston Kit 88.00mm for Yamaha YZ490 (1984-1990) and WR500 (1992-1993). Forged from high-silicon aluminum alloy, this Pro-Lite series piston kit delivers maximum strength, durability, and increased horsepower for both trail and racing applications. Each kit includes a forged piston, rings, wrist pin, and circlips. The piston features an optimized forging design for improved power and reliability, titanium nitride-coated rings for extended wear, and E-Coating for maximum protection from micro-welding, galling, and detonation.
Notes: Only Wiseco replacement ring sets can be used. Cylinder sleeves must be purchased separately. Designed for 2-stroke engines. Service intervals may be increased with Racer’s Choice pistons; ideal for expert racers and tuners.
Fits Yamaha YZ490 (84-90), WR500 (92-93).
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