
Forged Piston WÖSSNER Pro Series (manufacturer ref. 8713DA) — Designed and manufactured in Germany for off-road use, this forged piston is aimed at riders seeking a robust and precise engine part for their YZ 250 F. Its forged aluminum design provides a density and material uniformity conducive to stable engine behavior, while the skirt features an anti-friction treatment to minimize wear and friction during revving.
This piston is suitable for cross and motocross use, compatible notably with YAMAHA YZ 250 F (CG27/CG33) 2009–2011 models. The finish and machining adhere to Wössner standards for a precise fit in the sleeve, facilitating installation during engine preparation or top-end refurbishment.
Motoblouz reference: please ensure to check the oversize (letter A) and bore tolerances before installation to guarantee a proper assembly with your engine.




