WÖSSNER Forged Piston - Ref. 4085DA
Wössner forged piston, designed and manufactured in Germany by engine parts specialists for Cross use (2 and 4 stroke). This aluminum piston features an anti-friction treatment on the skirt to reduce friction during high RPM and promote controlled wear. Delivered complete with rings, circlips, and pin, it allows for quick and clean reassembly of the mobile group.

• Diameter: Ø 96.960 mm (oversize letter: A)
• Compression: Standard
• Material: Forged aluminum
• Number of rings: 3
• Delivered with: ring(s), circlips, and pin

Designed for motocross riders seeking a reliable and ready-to-use engine part, this piston is intended for the 450 cc displacements mentioned in the compatibility. It is suitable for restoration or engine preparation interventions where manufacturing quality and precision of dimensions are essential. Ideal for high RPM, responsiveness, and demanding track conditions, it fits into compatible engines without specific modifications.

Main applications: YAMAHA YZ 450 F (2026), FANTIC XXF 450 (2024), YAMAHA WR 450 F (2024).