PISTON KIT/4 KAW KZ10R C 13:1, WOSSNER K8746D300-4 O/S 3.00

This Wossner piston kit features a 79mm bore and is an oversized (+3mm) option for Kawasaki ZX10R Racing (2004–2007), ZX10R (2008–2010), and ZX10R models from 2011 to current. Forged in Germany for high-performance applications, the pistons are engineered for superior strength, optimal heat dissipation, and uniform expansion under thermal load, helping to prevent piston collapse during intense operation.

Features

• Forged construction ensures strength and durability

• Designed for efficient heat transfer from combustion chamber to cylinder walls

• Elliptical design provides even bearing surface under thermal expansion

• Reduces localised pressure and evenly distributes thrust loads

• Manufactured in Germany

Specifications

• Bore: 79.00mm (+3.00mm Oversize)

• Actual bore: 78.94mm

• 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: RIK79.00D3

Cross-Reference OEM Part Numbers

• 56-W9808.300.WO

• K8746D300-4

Vehicle Fitments

• Kawasaki ZX10R Racing (2004–2007)

• Kawasaki ZX10R (2008–2010)

• Kawasaki ZX10R (2011–Current)