WOSSNER 78mm FORGED PISTON KIT KAWASAKI KLX300R 1997-2007

The Wossner 78mm Bore Piston Kit (Part No. 8644DA) is a high-performance forged piston designed for the Kawasaki KLX300R. Engineered for strength and durability, it optimizes heat transfer and features an elliptical design to ensure uniform load distribution, reducing localized pressure and preventing piston collapse. Manufactured in Germany, this piston maintains the OEM compression ratio for reliable performance.

Features

• High-strength forged piston construction
• Optimized heat transfer for improved combustion efficiency
• Elliptical design for even thrust load distribution
• Manufactured in Germany

Specifications

• Bore Size: 78mm
• Actual Bore Diameter: 77.94mm
• Compression Ratio: OEM
• OEM Compression Ratio: 11.0:1
• Displacement: 290cc
• Stroke: 61.20mm
• Clearance: 0.06mm
• Dome Volume: -4.80cm³
• Compression Height: 23.00mm

Cross-Reference OEM Part Numbers

• Lock P/N: CW17
• Pin P/N: WP090
• Ring Set P/N: 780XDS
• OEM Part Numbers: 13001-1463, 4630M07800

Vehicle Fitments

• Kawasaki KLX300R (1997-2006)

Majority of our listings are for a direct replacement for your original part.

Our parts are made of quality and are designed to meet or exceed the original OEM Standards.

Our products are often a cost effective alternative to genuine OEM Parts.

Please note: the models of bike we state in our listings are for general guidance only. Please make sure this item will fit your bike before purchasing. Also, we cannot guarantee fitment to any non-UK models.