Wossner forged piston kit designed for Honda XR250 (1986-2004) and XL250 (1991-1996) 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: 74.00 mm (+1.00 mm oversize)


• Actual Bore: 73.94 mm


• Stroke: 59.50 mm


• Clearance: 0.06 mm


• Compression Height: 25.00 mm


• Dome Volume: +6.00 cm³


• Compression Ratio: 10.50:1


• OEM Compression Ratio: 9.30:1


• Displacement: 249 cm³


• Made in Germany

Cross-Reference OEM Part Numbers

• Wossner Part No.: 8793D100


• Lock P/N: CW17


• Pin P/N: WP090


• Ring Set P/N: 740XDS


• OEM Piston: 13101-KCE-670


• Oversize 0.25 Piston: 13102-KCE-305


• Oversize 0.50 Piston: 13103-KCE-305


• Standard Ring Set: 13011-KCZ-305


• Oversize 0.25 Ring Set: 13012-KCE-305


• Oversize 0.50 Ring Set: 13013-KCE-305


• Piston Pin: 13111-KK0-000

Vehicle Fitments

• Honda XR250 (1986-2004)


• Honda XL250 (1991-1996)