The Wossner 8871D050 Piston Kit is a high-performance replacement for the Honda TRX350 Rancher (1999-2006) with a bore size of 79.00mm and a clearance of 0.05mm. Wossner forged pistons are engineered for superior strength, efficient heat transfer, and durability. The elliptically designed pistons ensure even pressure distribution, preventing localized stress and piston collapse. Manufactured in Germany, this piston kit provides a reliable upgrade for engine performance.

Features

• Forged piston design for increased strength and longevity


• Optimized heat transfer for efficient combustion


• Elliptical shape for even load distribution and reduced piston collapse


• Manufactured in Germany for high-quality engineering

Specifications

• Bore Size: 79.00mm


• Bore Clearance: 0.05mm


• Display (cm³): 329


• Stroke: 68.00mm


• Compression Height: 24.30mm


• Dome Volume: +1.50cm³


• Wossner Compression Ratio: OEM


• OEM Compression Ratio: 8.80:1

Included Components

• Wossner 79.00mm piston (Part # 8871D050)


• Ring set (Part # 790XDS)


• C-clip set (Part # CW17)


• Wrist pin (Part # WP090)

Cross-Reference OEM Part Numbers

• Riken Ring Set (Oversize 0.50): 13012-HN5-671


• Piston (Oversize 0.50): 13103-HN5-670


• Namura NA-10007-2

Vehicle Fitments

• Honda TRX350 Rancher (1999-2006)