PISTON KIT 91-94 KTM300 72.50, WOSSNER 8012D050 FORGED

The Wossner 8012DA (+0.50) piston kit features a 72.50mm bore (actual 72.43mm) and is engineered for superior strength and efficient heat transfer to the cylinder walls. The forged, elliptically designed piston provides a uniform bearing surface under heat expansion, minimising localised pressure and distributing thrust loads evenly to prevent piston collapse. Made in Germany, this piston kit is built for durability and is compatible with KTM 300 models from 1990 to 1994.

Features

• Forged piston construction for superior strength and reliability

• Engineered for optimal combustion chamber heat transfer

• Elliptical design ensures uniform bearing surface during heat expansion

• Reduces localised pressure and prevents piston collapse

• Made in Germany

Specifications

• Bore Size: 72.50mm (Actual 72.43mm)

• Display (cm³): 297

• Stroke (mm): 72.00

• Clearance (mm): 0.07

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

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

• Compression Height (mm): 29.70

Cross-Reference OEM Part Numbers

• Wossner Piston Kit Part No: 8012DA (+0.50)

• Lock Part No: CW18

• Pin Part No: WP039

• Ring Set Part No: RSB7250 × 2

Vehicle Fitments

• 1990 KTM GS300

• 1990 KTM MX300

• 1990 KTM EXC300

• 1991 KTM GS300

• 1991 KTM MX300

• 1991 KTM EXC300

• 1992 KTM GS300

• 1992 KTM MX300

• 1992 KTM EXC300

• 1993 KTM GS300

• 1993 KTM MX300

• 1993 KTM EXC300

• 1994 KTM GS300

• 1994 KTM MX300

• 1994 KTM EXC300