Wossner forged piston kit designed for Gas Gas EC 250, SM 250, MC 250, and MX 250 models with a 66.42mm bore. Engineered for optimal heat transfer and uniform bearing surface distribution, preventing piston collapse. Manufactured in Germany for durability and precision.

Features

• Forged construction for superior strength and durability


• Optimized heat transfer for improved engine performance


• Elliptical design ensures even pressure distribution, reducing localized stress


• Manufactured in Germany for high-quality performance

Specifications

• Bore Size: 66.42mm


• Actual Bore: 66.35mm


• Displacement: 249 cm³


• Stroke: 72.00mm


• Clearance: 0.07mm


• Compression Ratio: 2-Stroke


• Compression Height: 38.00mm


• Lock Part Number: CW18


• Pin Part Number: WP033


• Ring Set Part Number: RSB6640

Cross-Reference OEM Part Numbers

• Wossner Piston Part Number: 8052DC


• Equivalent Part Numbers: 09104758, 849M06640

Vehicle Fitments

• Gas Gas EC 250 (1997-2014)


• Gas Gas SM 250 (1997-2008)


• Gas Gas MC 250 (1997-2008)


• Gas Gas MX 250 (1997-2011)