PISTON KIT/4 YAM YZF R6 68.00, WOSSNER K8830D100-4

The Wossner K8830D100-4 piston kit is a +1.00mm oversize forged piston set engineered for Yamaha YZF R6 models from 2006 to 2011. Featuring a 68.00mm bore and maintaining a 13.0:1 compression ratio, this high-performance kit is built for durability and efficient combustion in high-revving four-stroke engines. Manufactured in Germany, the set includes four pistons and all required installation components.

Features

• Forged high-performance pistons with skirt coating

• Elliptical design ensures balanced load distribution and controlled thermal expansion

• Optimised for effective combustion chamber heat transfer to cylinder walls

• Designed for high-compression four-stroke engines

• Includes piston pins, clips, and rings

Specifications

• Bore size: 68.00mm (+1.00mm oversize)

• Measured bore: 67.94mm

• Display displacement: 599 / 617 / 635 cm³

• Stroke: 42.50mm

• Clearance: 0.06mm

• Compression ratio: 13.0:1

• Dome volume: –2.00 cm³

• Compression height: 21.20mm

• Quantity: 4 pistons per kit

• Made in Germany

Cross-Reference OEM Part Numbers

• Part No. 56-W9874.100.WO

• Clip: CW15

• Piston Pin: WP011

• Ring Set: 680XKS

Vehicle Fitments

• Yamaha YZF R6 2006–2011