This piston kit is designed for Suzuki Hayabusa models from 1999 to 2007 and includes four forged Wossner pistons from the Pro Series. Featuring a +3.00mm oversize bore (84.00mm), this kit is suited for high-performance builds requiring increased displacement and durability. The elliptical piston design enhances heat expansion management and distributes thrust loads evenly to reduce stress and prevent piston collapse. Manufactured in Germany, it ensures quality and precision for demanding engine configurations.

Features

• Set of 4 forged Wossner pistons (Pro Series)


• +3.00mm oversized bore (84.00mm, actual piston diameter 83.95mm)


• 3-ring design


• Elliptical construction for improved load distribution under thermal expansion


• Optimised for heat transfer and mechanical strength


• Made in Germany

Specifications

• Part Number: K4017D300-4


• Bore Size: 84.00mm (actual piston size 83.95mm)


• Oversize: +3.00mm


• Stroke: 63.00mm


• Clearance: 0.05mm


• Wossner Compression Ratio: 12.00:1


• Compression Height: 25.25mm


• Theoretical Weight: 253g

Cross-Reference OEM Part Numbers

• Clip: CW20


• Piston Pin: WP029-SP


• Replacement Ring Set: RIK84.00B

Vehicle Fitments

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  Suzuki Hayabusa 1999–2007