PISTON KIT SET GSXR1000 73.40, WOSSNER K8700DA-4 SUZUKI, 2005-2008

This Wossner forged piston kit K8700DA-4 features a standard 73.40mm bore and is designed for SUZUKI GSXR1000 models from 2005 to 2008. Supplied as a set of four pistons, it is engineered for increased compression and performance across multiple displacement configurations. Manufactured in Germany, this kit ensures high strength, effective heat management, and dimensional precision for demanding 4-stroke engine applications.

Features

• Forged piston design for exceptional strength and durability

• Efficient combustion chamber heat transfer to cylinder walls

• Elliptical contour ensures uniform expansion and even load distribution

• Minimises localised stress and prevents piston collapse

• Manufactured in Germany

Specifications

• Bore: 73.40mm (STD)

• Piston code: Wossner K8700DA-4

• Clip part number: CW15

• Piston pin: WP011

• Ring set: RIK73.40L

• Displacement options: 988 / 1024 / 1070 cm³

• Stroke: 59.00 mm

• Clearance: 0.04 mm

Wossner compression ratio:

• 998 cm³: 14.00:1

• 1024 cm³: 14.60:1

• 1070 cm³: 14.90:1

• OEM compression ratio: 12.50:1

• Dome volume: -4.40 cm³

• Compression height: 22.55 mm

Cross-Reference OEM Part Numbers

• Part No. 56-W9893.000.WO

Vehicle Fitments

• SUZUKI GSXR1000 2005–2008