This Wossner piston kit with an 86mm bore is an oversized (+2mm) high-compression flat top replacement for Kawasaki ZX14 models from 2006 to 2009, including Pro Series configurations. Forged in Germany for maximum durability and performance, the piston is designed to enhance thermal efficiency and maintain structural integrity under high operating pressures. The elliptical design helps evenly distribute load and heat, reducing stress and preventing piston failure.

Features

• Forged construction for superior strength and thermal resilience


• Engineered for efficient combustion heat transfer to cylinder walls


• Elliptical profile ensures uniform bearing contact during heat expansion


• Even thrust load distribution minimises localised stress


• High-compression flat top design


• Manufactured in Germany

Specifications

• Bore: 86mm (+2.00mm Oversize)


• Actual bore: 85.93mm


• Display volume: 1352 cm³


• Stroke: 61.00mm


• Clearance: 0.07mm


• Wossner compression ratio: 13.50:1


• OEM compression ratio: 12.00:1


• Dome volume: -2.40 cm³


• Compression height: 24.50mm

Cross-Reference OEM Part Numbers

• 56-W9816.86.WO


• K8785D200-4

Vehicle Fitments

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  Kawasaki ZX14 (2006–2009) (Pro Series)