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Wössner is a German manufacturer of forged pistons established in Bavaria, supplying internationally recognised engine manufacturers and individual motorsport clients across the world. Every Wössner piston is produced through a closed-die forging process that aligns the grain structure of the aluminium alloy for higher tensile strength and fatigue resistance compared to cast alternatives.
The motocross and off-road range covers 2-stroke and 4-stroke applications across all major makes and model years, with published bore options in standard and over-bore increments for rebuild and displacement upgrade applications. Wössner publishes detailed application data by make, model, and year for precise kit selection. In 2010, the product range expanded to include forged connecting rods and complete gasket sets, making Wössner a single-source supplier for full engine rebuild kits.
