Wossner forged piston kit with a 90mm bore, designed for Kawasaki KFX400 and KLX400 models. This high-compression piston is engineered for optimal combustion chamber heat transfer and uniform bearing surface under heat expansion, reducing localized pressure and piston collapse. Manufactured in Germany for durability and precision.

Features

• High-compression forged piston for increased performance


• Optimized heat transfer to cylinder walls


• Elliptical design for uniform bearing surface and even thrust load distribution


• Manufactured in Germany

Specifications

• Bore: 90mm


• Standard size piston (PN# 8566DA)


• Lock Part Number: CW20


• Pin Part Number: WP029


• Ring Set Part Number: 900XSY


• Rod Part Number: P4009

Cross-Reference OEM Part Numbers

• Not provided

Vehicle Fitments

• Kawasaki KFX400 (2003-2006)


• Kawasaki KLX400 (2003-2006)