PISTON KIT SET/4 HAYABUSA 85, WOSSNER K8733D400-4 SUZUKI, 2008-2016 DISPL. 1474cc

This Wossner forged piston kit K8733D400-4 features an 85.00mm bore (+4.00mm oversize) and is specifically engineered for SUZUKI HAYABUSA GSX R 1300 models from 2008 to 2016. Supplied as a set of four high-compression 3-ring pistons, this oversized kit is designed to significantly increase engine displacement and maintain reliability in high-performance or turbocharged setups. Manufactured in Germany, it offers superior heat management, structural integrity, and precision fitment.

Features

• Forged 3-ring piston construction for enhanced strength in high-performance applications

• Optimised heat transfer from combustion chamber to cylinder walls

• Elliptical design ensures uniform expansion and distributes thrust loads evenly

• Prevents piston collapse by reducing localised pressure points

• Manufactured in Germany

Specifications

• Bore: 85.00mm (+4.00mm oversize)

• Piston code: Wossner K8733D400-4

• Clip part number: CW18

• Piston pin: WP054

• Ring set: 850XDS

• Displacement options: 1340 / 1406 / 1440 / 1474 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-W9895.400.WO

Vehicle Fitments

• SUZUKI HAYABUSA GSX R 1300 2008–2016