Wiseco 608M07650 2-Stroke Piston Kit 76.50mm +1.5mm Oversize for Kawasaki JS/JSX550

The Wiseco 608M07650 is a forged 2-stroke piston kit designed for the Kawasaki JS550 and JSX550 personal watercraft. Featuring a 76.50mm bore diameter, this kit is a +1.50mm oversize option delivering a 551cc displacement — ideal for cylinder rebuilds requiring an oversize bore.

Key Features:

• USA Engineered & Manufactured — Forged, machined, and assembled in Mentor, OH
• High-Strength Forged Construction — Improved tensile strength over cast pistons optimizes durability and service life
• Optimized Strength-to-Weight Ratio — Dedicated forgings with additional lightening operations reduce reciprocating mass
• Designed for 2-Stroke Engines — Engineered specifically for the Kawasaki JS550 / JSX550 550SX powerplant
• Complete Kit — Includes piston, high-quality piston ring(s), wrist pin, and circlips
• Oversize Availability — 1.50mm oversize bore supports cylinder resleeving or cast iron cylinder reconditioning
• Compatible Cylinder Surfaces — Suitable for cast iron, chrome, Nikasil, and boron composite cylinder bore compositions
• OEM Cross-Reference — Replaces Kawasaki OEM piston part numbers 13001-2094 and 13029-2077

Wiseco has been a leader in 2-stroke piston manufacturing since 1941, and this kit reflects decades of design refinement for personal watercraft applications. Whether rebuilding a worn engine or refreshing a performance PWC, the 608M07650 delivers the reliability and precision fit that Wiseco forged pistons are known for.