This Wossner forged piston kit is built for KTM and Husqvarna 300cc two-stroke engines, offering a precision 72.02mm (+0.02mm) bore size for optimised engine performance. Designed to deliver strength and thermal efficiency, the kit supports high-load conditions common in competition and off-road use. Manufactured in Germany, the kit includes all essential components for installation.

Features

• High-performance forged piston designed for strength and durability

• Efficient combustion chamber heat transfer to cylinder walls

• Elliptical piston profile for even bearing surface under thermal expansion

• Prevents localised pressure and reduces piston collapse risk

• Includes piston, rings, pin, and circlips

• Made in Germany

Specifications

• Bore Size: 72.02mm (actual: 71.96mm)

• Piston Kit: Single piston with complete fitting components

Cross-Reference OEM Part Numbers

• 56-W9947.C.WO

• Wossner 8301DC

• OEM Piston Reference: 55630107000

• Ring Set: RSB7200

• Pin: WP033

• Clips: CW18

Vehicle Fitments

• KTM 300 EXC (2017)

• Husqvarna 300 TE (2017–2018)