PISTON KIT 04-05 CRF250R 78.00, FORGED WOSSNER 8587DA, 13101-KRN-670

Wossner 78.00mm 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: 78.00mm
• Actual Bore Diameter: 77.95mm
• Displacement: 249 cm³
• Stroke: 52.20mm
• Clearance: 0.05mm
• Wossner Compression Ratio: OEM
• OEM Compression Ratio: 12.90:1
• Dome Volume: -1.00 cm³
• Compression Height: 18.90mm
• Gasket Part Number: D4004
• Lock Part Number: CW16
• Pin Part Number: WP070
• Ring Set Part Number: 780XAS-2
• Rod Part Number: P4001

Cross-Reference OEM Part Numbers

• 13101-KRN-670
• Part No: 56-W4829.A.WO
• Wossner Part No: 8587DA

Vehicle Fitments

• Honda CRF250R (2004 – 2005)
• Honda CRF250X (2004 – 2005)