Wossner 99.20mm forged piston kit is designed for strength and durability. Engineered for optimal heat transfer, it ensures efficient cooling of the combustion chamber. The elliptical design provides a uniform bearing surface, reducing localized pressure and distributing thrust loads evenly to prevent piston collapse. Manufactured in Germany for precision and reliability.

Features

• Forged construction for enhanced strength and longevity


• Optimized heat transfer for improved engine performance


• Elliptical design prevents piston collapse and ensures even load distribution


• Manufactured in Germany for high-quality standards

Specifications

• Bore Size: 99.20mm


• Actual Bore Diameter: 99.14mm


• Displacement: 449 cm³


• Stroke: 64.60mm


• Clearance: 0.06mm


• Wossner Compression Ratio: 12.50:1


• OEM Compression Ratio: 10.80:1


• Dome Volume: +5.20 cm³


• Compression Height: 28.80mm


• Lock Part Number: CW23


• Pin Part Number: WP008


• Ring Set Part Number: 992XSY

Cross-Reference OEM Part Numbers

• 3087970


• 4807M09920


• Part No: 56-W4807.A.WO


• Wossner Part No: 8692DA

Vehicle Fitments

• Polaris Predator 500 (2003 - 2007)


• Polaris Outlaw 500-HC (2006 - 2009)