Wossner Piston Kit WO-8005-D_ – KTM 240 GS / 250 GS

Wossner Piston Kit WO-8005-D050 – KTM 240 GS / 250 GS

The Wossner WO-8005-D050 Piston Kit is a forged replacement piston designed for classic KTM 240 GS and 250 GS two-stroke 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 +0.50 mm oversize configuration for cylinders that have been professionally rebored.

Vehicle Applications

• KTM 240 GS: 1990–1994
• KTM 250 GS: 1990–1994

Specifications

• Part Number: WO-8005-D050
• Bore Size: 68.00 mm
• Piston Diameter: 67.94 mm
• Oversize: +0.50 mm
• Piston Clearance: 0.06 mm
• Ring Configuration: Dual Ring
• Piston Ring: RSB6800
• Wrist Pin: WP033
• Wrist Pin Diameter: 18 mm
• Circlips: CW18
• Compression Height: 29.70 mm
• Overall Length: 69.50 mm
• Connecting Rod: P2024
• Small-End Bearing: N1020
• Top End Gasket Kit: D2078

Features

• Wossner Standard Series forged piston
• Dual-ring piston design
• +0.50 mm oversize
• Precision manufactured for reliable two-stroke performance
• Designed for KTM 240 GS and 250 GS applications

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.