PISTON KIT 92-98 YZ250 68.00 A, WOSSNER 8023DA YAMAHA MX

This Wossner forged piston kit is designed for Yamaha YZ250 (1992–1998) and WR250 (1992–1999) models. Precision-engineered and manufactured in Germany, it offers high durability and optimal combustion efficiency. The piston’s elliptical design allows uniform load distribution during thermal expansion, improving reliability and preventing piston collapse. The 68mm bore provides a standard fit for these two-stroke engines, with effective heat transfer characteristics to maintain engine performance.

Features

• Forged piston construction for enhanced durability

• Elliptical design promotes uniform load distribution under heat

• Efficient combustion heat transfer to cylinder walls

• Built to prevent localised pressure and piston collapse

• German-engineered quality

Specifications

• Bore Size: 68.00mm (Standard)

• Actual Diameter: 67.94mm

• Compression Height: 36.00mm

• Stroke: 68.00mm

• Displacement: 246 cm³

• Piston Clearance: 0.06mm

• Compression Ratio: 2-stroke (Wossner and OEM)

Cross-Reference OEM Part Numbers

• Piston Kit Part No: 8023DA

• Lock: CW18

• Pin: WP033

• Ring Set: RSB6800 x2

• Rod: P2029

Vehicle Fitments

• 1992 Yamaha WR250

• 1992 Yamaha YZ250

• 1993 Yamaha WR250

• 1993 Yamaha YZ250

• 1994 Yamaha WR250

• 1994 Yamaha YZ250

• 1995 Yamaha WR250

• 1995 Yamaha YZ250

• 1996 Yamaha WR250

• 1996 Yamaha YZ250

• 1997 Yamaha WR250

• 1997 Yamaha YZ250

• 1998 Yamaha WR250

• 1998 Yamaha YZ250

• 1999 Yamaha WR250