Wossner Piston Kit WO-8012-D_ – KTM 300 EGS / EXC / GS / MX

Wossner Piston Kit WO-8012-D100 – KTM 300 EGS / EXC / GS / MX

The Wossner WO-8012-D100 Piston Kit is a forged replacement piston designed for classic KTM 300cc two-stroke off-road models. Part of Wossner's Standard Series, it features a durable dual-ring design for excellent sealing, reliability and consistent engine performance. This piston is supplied in a +1.00 mm oversize configuration for cylinders that have been professionally rebored.

Vehicle Applications

• KTM 300 EGS: 1990–1994
• KTM 300 EXC: 1990–1994
• KTM 300 GS: 1990–1994
• KTM 300 MX: 1990–1994

Specifications

• Part Number: WO-8012-D100
• Bore Size: 73.00 mm
• Piston Diameter: 72.93 mm
• Oversize: +1.00 mm
• Piston Clearance: 0.07 mm
• Ring Configuration: Dual Ring
• Ring Quantity: 2
• Piston Ring: RSB7300
• Wrist Pin: WP039
• Wrist Pin Diameter: 18 mm
• Circlips: CW18
• Compression Height: 29.70 mm
• Overall Length: 73.00 mm
• Connecting Rod Length: 132.00 mm
• Connecting Rod: P2024
• Small-End Bearing: N1020

Features

• Wossner Standard Series forged piston
• Dual-ring piston design
• +1.00 mm oversize
• Precision manufactured for reliable two-stroke performance
• Designed for classic KTM 300cc off-road models

Important: Oversize pistons require the cylinder to be accurately measured and professionally machined to suit. Always confirm piston size and engine application before installation.

Disclaimer: Product images are for illustration purposes only and may differ from the actual product supplied. Vehicle applications and specifications are provided as a guide only. It is the purchaser's responsibility to confirm the part number, dimensions and fitment are correct before installation.