PISTON KIT SET/4 HAYABUSA 81, WOSSNER K8734DA-4 SUZUKI, 1999-2007 DISPL. 1300cc

This Wossner forged piston kit K8734DA-4 features a standard 81.00mm bore and is specifically designed for SUZUKI HAYABUSA TURBO GSX R 1300 models from 1999 to 2007. Supplied as a set of four pistons, the kit is optimised for turbocharged applications, offering a reduced compression ratio to support forced induction while maintaining strength and reliability under extreme operating conditions. Manufactured in Germany, it ensures exceptional thermal efficiency and structural integrity.

Features

• Forged piston construction designed for high-performance turbocharged engines

• Engineered for effective heat transfer from the combustion chamber to cylinder walls

• Elliptical profile supports even expansion and thrust load distribution

• Minimises localised pressure and prevents piston collapse

• Manufactured in Germany

Specifications

• Bore: 81.00mm (STD)

• Piston code: Wossner K8734DA-4

• Clip part number: CW20

• Piston pin: WP065

• Ring set: RIK81.00A

• Displacement: 1299 / 1362 cm³

• Stroke: 63.00 mm

• Clearance: 0.07 mm

• Wossner compression ratio: 9.00:1

• OEM compression ratio: 11.00:1

• Dome volume: -17.80 cm³

• Compression height: 26.80 mm

Cross-Reference OEM Part Numbers

• Part No. 56-W9894.000.WO

Vehicle Fitments

• SUZUKI HAYABUSA TURBO GSX R 1300 1999–2007