PISTON KIT/4 STD KAWASAKI KZ10R C 13:1 WOSSNER K8746DA-4

This Wossner piston kit with a 76mm bore is a standard replacement for Kawasaki ZX10R Racing (2004–2007) and ZX10R (2008–2010) models. Precision-forged in Germany, these pistons are designed to enhance structural integrity and heat transfer efficiency. The elliptical design ensures a uniform bearing surface during heat expansion, minimising localised stress and preventing piston collapse.

Features

• Forged construction for maximum strength and durability
• Optimised for efficient heat dissipation from combustion chamber to cylinder walls
• Elliptical profile ensures even bearing contact during thermal expansion
• Reduces localised pressure and evenly distributes thrust loads
• Manufactured in Germany

Specifications

• Bore: 76mm (Standard)
• Actual bore: 75.94mm
• Display volume: 998 / 1051 cm³
• Stroke: 55.00mm
• Clearance: 0.06mm
• Wossner compression ratio: 13.40:1
• OEM compression ratio: 12.70:1
• Dome volume: -1.80 cm³
• Compression height: 22.70mm
• Lock Part Number: CW17
• Pin Part Number: WP038
• Ring Set Part Number: OEM

Cross-Reference OEM Part Numbers

• 56-W9808.76.WO
• K8746DA-4

Vehicle Fitments

• Kawasaki ZX10R Racing (2004–2007)
• Kawasaki ZX10R (2008–2010)