PISTON KIT XR XL 250 74.50, WOSSNER 8791D050 79-83

Wossner forged piston kit designed for Honda XL250S and XR250 models. Manufactured in Germany, this piston offers superior strength and heat transfer efficiency. The elliptical design ensures even load distribution, reducing localized pressure and preventing piston collapse.

Features

• Forged construction for enhanced durability and strength


• Optimized heat transfer for improved performance


• Elliptical design for uniform bearing surface and reduced wear


• Designed for 4-stroke engines

Specifications

• Bore Size: 74.50 mm


• Actual Bore: 74.44 mm


• Stroke: 57.80 mm


• Clearance: 0.06 mm


• Compression Height: 24.70 mm


• Dome Volume: +9.30 cm³


• Compression Ratio: 10.00:1 (OEM: 9.10:1)


• Displacement: 249 cm³


• Made in Germany

Cross-Reference OEM Part Numbers

• Wossner Part No.: 8791D050


• Lock P/N: CW19


• Pin P/N: WP028


• Ring Set P/N: 745XDS

Vehicle Fitments

• Honda XL250S (1979-1982)


• Honda XR250 (1983)