Wossner forged piston kit designed for superior strength and heat transfer efficiency. Engineered with an elliptical shape to ensure uniform bearing surfaces under heat expansion, reducing localized pressure and preventing piston collapse. Manufactured in Germany for high-performance applications.

Features

• Forged construction for enhanced durability and strength


• Optimized heat transfer for improved combustion efficiency


• Elliptical design for even thrust load distribution


• Made in Germany

Specifications

• Bore Size: 94.93mm (Standard = 95mm)


• Displacement: 595 cm³


• Stroke: 84.00mm


• Clearance: 0.07mm


• Wossner Compression Ratio: 10.70:1


• OEM Compression Ratio: 8.50:1


• Dome Volume: -0.50 cm³


• Compression Height: 28.00mm


• Theoretical Weight: Not specified

Included Components

• Piston Kit (8501DA)


• Piston Lock: CW22


• Piston Pin: WP009


• Piston Ring Set: 950XSY

Cross-Reference OEM Part Numbers

• 3TB-11631-00-Y0


• 01.2601.000

Vehicle Fitments

• Yamaha XT600 (1984-2004)


• Yamaha XT600E (1984-2004)


• Yamaha TT600 (1984-2004)


• Yamaha TT600R (1984-2004)


• Yamaha YFM600 Grizzly (1998-2001)