Wiseco 40280M08600 Performance Piston Kit 86.00mm Bore

The Wiseco 40280M08600 is a high-performance forged piston kit designed specifically for Yamaha 1.8L WaveRunner applications with an 86.00mm bore. This piston kit maintains the factory 8.6:1 compression ratio, allowing for direct replacement without requiring fuel upgrades or tuning modifications.

Key Features:

• Engineered, forged, and machined in the USA in Mentor, OH
• Designed to the tightest tolerances for the ultimate combination of performance and strength
• Forged from high silicon, low expansion aluminum which offers superior strength, reduced weight, improved heat transfer, and longer life
• Excellent for turbo or supercharged applications
• Includes high-quality piston rings, wrist pin(s), and circlips

Each piston allows maximum flow around the valves and features a crown shape to promote intake charge efficiency, while the optimized skirt profile increases resistance to detonation and pre-ignition for enhanced engine longevity. This kit fits all Yamaha 1.8L FZR, FZS, FX SHO, and FX WaveRunner watercrafts.