Wossner Forged Piston kitYAMAHA 250 YZ 250 - 1980 - 1982Ref : WO00522A / 1093606002

WÖSSNER Forged Piston - Ref. 8180D050

Designed for off-road use, this Wössner forged piston is aimed at preparations and restorations of motocross engines. Manufactured in Germany in specialized engine component workshops, it combines lightweight material and meticulous finishing for reliable installation on compatible 2-stroke and 4-stroke engines.

• Material: forged aluminum
• Diameters: bore 70.50 mm / piston diameter Ø 70.44 mm (oversize letter 050)
• Compression: standard
• Treatment: anti-friction skirt
• Delivered with: ring(s), circlips, and pin

The treated skirt reduces friction during temperature rises, facilitating break-in and the stability of the cylinder/piston pairing. Its diameter Ø 70.44 mm corresponds to an oversize of 0.50 mm, so be sure to check the bore and tolerances before installation. Suitable for various vintage models and replicas listed, such as the YAMAHA YZ 250 (1980-1982) — refer to the engine specifications for exact compatibility.

Ideal for demanding mechanics and riders who are refurbishing an engine block or seeking a dimensionally correct replacement part, this Wössner piston provides the necessary dimensions and equipment for a clean and complete installation.