WOSSNER 72mm FORGED PISTON KIT A, KTM 300 2T 1991-1994

The Wossner 8012DA piston kit features a 72.00mm bore (actual 71.93mm) and is engineered for exceptional strength and optimal heat transfer to the cylinder walls. The forged, elliptically designed piston ensures a uniform bearing surface during heat expansion, reducing localised pressure and evenly distributing thrust loads to prevent piston collapse. Made in Germany, this kit includes essential parts for a reliable rebuild and is compatible with KTM 300 models from 1990 to 1994.

Features

• Forged piston construction for superior strength and durability

• Engineered for efficient combustion chamber heat transfer

• Elliptical design ensures uniform bearing surface under thermal expansion

• Reduces localised pressure and prevents piston collapse

• Made in Germany

Specifications

• Bore Size: 72.00mm (Actual 71.93mm)

• 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

• Lock Part No: CW18

• Pin Part No: WP039

• Ring Set Part No: RSB7200 × 2

• OEM Part Numbers: 54630015044, 631M07200

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

Majority of our listings are for a direct replacement for your original part.

Our parts are made of quality and are designed to meet or exceed the original OEM Standards.

Our products are often a cost effective alternative to genuine OEM Parts.

Please note: the models of bike we state in our listings are for general guidance only. Please make sure this item will fit your bike before purchasing. Also, we cannot guarantee fitment to any non-UK models.