The Wossner 8662D200 forged piston kit with a 68.00mm bore is designed for high-compression performance in Honda CRF150R models from 2007 to 2009. Manufactured in Germany, this piston offers excellent structural integrity, thermal efficiency, and resistance to deformation under high temperatures. The elliptical design ensures even pressure distribution, reducing stress and preventing piston failure.

Features

• Forged high-compression piston for strength and long-term reliability


• Designed to enhance heat transfer from combustion chamber to cylinder walls


• Elliptical profile provides uniform bearing surface under thermal expansion


• Reduces localized stress and prevents piston collapse


• Manufactured in Germany

Specifications

• Bore: 68.00 mm


• Actual Bore Diameter: 67.95 mm


• Display: 149 cm³


• Hub Stroke: 43.70 mm


• Clearance: 0.05 mm


• Compression Height: 20.60 mm


• Dome Volume: -1.80 cm³


• Wossner Compression Ratio: 12.50:1


• OEM Compression Ratio: 11.70:1

Cross-Reference OEM Part Numbers

• Piston: 8662D200


• Lock: CW14


• Pin: WP058


• Ring Set: 680XKS


• Rod: P4024


• Part No.: 56-W4924+200.WO

Vehicle Fitments

• Honda CRF150R 2007–2009