Wossner forged piston kit designed for Honda NX650, XR650, FMX650, and SLR650 models. Manufactured in Germany, this piston offers superior strength and heat transfer efficiency. The elliptical design ensures even load distribution, reducing localized pressure and preventing piston collapse.

Features

• Forged construction for enhanced durability and strength


• Optimized heat transfer for improved performance


• Elliptical design for uniform bearing surface and reduced wear


• Designed for 4-stroke engines

Specifications

• Bore Size: 100 mm (Standard)


• Actual Bore: 99.93 mm


• Stroke: 82.00 mm


• Clearance: 0.07 mm


• Compression Height: 29.00 mm


• Dome Volume: +0.00 cm³


• Compression Ratio: OEM (8.30:1)


• Displacement: 644 cm³


• Made in Germany

Cross-Reference OEM Part Numbers

• Wossner Part No.: 8564DA


• Lock P/N: CW24


• Pin P/N: WP057


• Ring Set P/N: 1000XSY


• OEM Part No.: 13110-MN9-000, 4562M10000

Vehicle Fitments

• Honda NX650 Dominator (1988-2004)


• Honda XR650C (1993-Onward)


• Honda XR650L (1996-2016)


• Honda FMX650 (2005)


• Honda SLR650 (1997)