Wossner (pronounced Werssner) Pistons, Germanys finest aftermarket forged piston company brings precision and quality to North America. Top European racers and FIM World Champions rely on Wossner for only the best pistons, rods and customer service. With our involvement with top teams around the World you can be assured to receive only the finest components from Wossner. Wossner has an advantage over most other companies with their in-house forging design, manufacturing capability and 5-Axis machining centers. Wossner has a commitment to the future and not only attends tradeshows around the world they invest in the latest technologies available to make sure customers receive nothing but the best.

High Performance Forged Premium 4-Stroke Piston Kits

German precision

In-House designed and manufactured on dedicated lightweight forgings

Lightweight pistons and tightest piston-wall clearances in the industry results in quieter running engines

Standard and oversize pistons for most models and years

Standard and high compression ratios for most popular engines

Race Winning skirt profiles and dome designs results in better ring sealing and higher performance

All piston skirts are supplied with a Moly coating to reduce friction and assist in break in

Some 4-stroke piston kits come with radial gas porting to assist in ring sealing resulting in better performance