Wossner 95mm (94.95mm) forged piston kit is designed for Husaberg EF 501, EFE 501, FC 501, FE 501, EF 600, EFE 600, FC 600, FE 600, FC 601, and FE 601 models from 1989 to 2009. Engineered for strength and precision, this piston ensures efficient heat transfer to the cylinder walls, providing uniform expansion and reducing localized pressure. The elliptical design distributes thrust loads evenly, preventing piston collapse. Manufactured in Germany, it meets high-quality standards for reliable performance.

Features

• Wossner forged piston for superior strength and durability


• Optimized heat transfer for improved combustion efficiency


• Elliptical design for uniform bearing surface and reduced localized pressure


• Precision-engineered to prevent piston collapse


• Made in Germany

Specifications

• Bore Size: 95mm (94.95mm)


• Standard Size (STD)


• Displacement: 501cc


• Stroke: 84.00mm


• Clearance: 0.05mm


• Compression Ratio: OEM (11.80:1)


• Dome Volume: -2.10cm³


• Compression Height: 23.00mm


• Lock Part Number: CW20


• Pin Part Number: WP073 (For FC601/FE601 1994-1998, DA-DC uses WP073, D300 uses WP038)


• Ring Set Part Number: 950XSY


• Theoretical Weight: Not specified

Vehicle Fitments

• Husaberg EF 501 (1990-2000)


• Husaberg EFE 501 (1999-2000)


• Husaberg FC 501 (1994-2009)


• Husaberg FE 501 (1994-2009)


• Husaberg EF 600 (1999-2000)


• Husaberg EFE 600 (1999-2000)


• Husaberg FC 600 (1989-2000)


• Husaberg FE 600 (1989-2000)


• Husaberg FC 601 (1994-1998)


• Husaberg FE 601 (1994-1998)