This Wossner forged piston kit is a +0.02mm oversize replacement for KTM EXC500 four-stroke engines from 2012 onward. Engineered for strength and precision, it ensures consistent performance under demanding conditions, with excellent thermal transfer and structural stability.

Features

• Forged piston construction delivers exceptional strength and reliability

• Elliptical design provides even bearing surface during thermal expansion

• Promotes efficient heat transfer from combustion chamber to cylinder walls

• Designed to evenly distribute thrust loads and prevent piston collapse

• Manufactured in Germany

Specifications

• Bore Size: 95.02mm

• Actual Piston Size: 94.97mm

• Display Displacement: 510 cm³

• Stroke: 72.00mm

• Piston Clearance: 0.05mm

• Wossner Compression Ratio: OEM

• OEM Compression Ratio: 11.80:1

• Dome Volume: -6.80 cm³

• Compression Height: 22.80mm

• Circlip Part Number: CW19

• Pin Part Number: WP071

• Ring Set Part Number: 950ADS-2

Cross-Reference OEM Part Numbers

• Part No: 56-W925.C.WO

Vehicle Fitments

• KTM EXC500 (2012– )