Wossner Full forged size A Piston kitYAMAHA 125 YZ 125 - 1989Ref : 8131DA / 1093566001

WÖSSNER Forged Piston – Manufacturer Ref. 8131DA

Designed for off-road applications, this Wössner forged piston is a high-quality engine part manufactured in Germany. Its forged aluminium construction provides mechanical strength suitable for the demands of motocross engines, while the skirt receives an anti-friction treatment to limit wear and promote consistent thermal dissipation.

• Bore diameter: 56.00 mm
• Piston diameter: Ø 55.94 mm (oversize letter A)
• Material: forged aluminium
• Number of rings: 1
• Supplied with ring(s), circlips, and pin

This piston is intended for modifications and replacements on motocross engines requiring an oversize A. Ideal for those seeking a robust and precise part to replace a worn piston or carry out an engine overhaul. Before installation, check the bore and adhere to the manufacturer's tolerances and assembly procedure — proper lubrication of the ring and securing of the circlips are essential for reliability.

Example compatibility: YAMAHA YZ 125 (1989 - 125 cm3). Check the reference and dimensions on the engine side before placing any order.