PISTON KIT SET/3 KAW. 400 S3, WOSSNER K8275D050-3 57.50mm

This Wossner forged piston kit K8275D050-3 is designed for KAWASAKI 400 S3 models from 1974 to 1975, featuring a +0.50mm oversize with a 57.50mm bore. Supplied as a set of three pistons, it offers enhanced strength and thermal efficiency tailored for 2-stroke engine performance. Manufactured in Germany, this kit is built to ensure consistent expansion and load distribution under high-stress conditions.

Features

• Forged construction for maximum strength and reliability in 2-stroke engines

• Engineered for optimal combustion chamber heat dissipation

• Elliptical piston design ensures even expansion and load distribution

• Reduces risk of piston collapse from localised pressure

• Made in Germany

Specifications

• Bore: 57.50mm (+0.50mm oversize)

• Piston code: Wossner K8275D050-3

• Clip part number: CW17

• Piston pin: WP083

• Ring set: RSB5750 x 2

• Displacement: 400 cm³

• Stroke: 52.30 mm

• Clearance: 0.06 mm

• Wossner compression ratio: 2-stroke

• OEM compression ratio: 2-stroke

• Compression height: 28.50 mm

Cross-Reference OEM Part Numbers

• Part No. 56-W9885.050.WO

Vehicle Fitments

• KAWASAKI 400 S3 1974–1975