KTM 640 Duke [1998-2006] - WÖSSNER forged pistons

WÖSSNER forged pistons for KTM 640 Duke 1998-2006

The WÖSSNER forged piston is an engine component for the KTM 640 Duke in the full year range from 1998 to 2006. The design is tailored to the specified piston and bore dimensions and thus offers a clear basis for selection within this vehicle classification.

Execution and function

The piston is made of aluminum and is forged. In conjunction with the specified compression ratio of 11.7:1, it is specified for the corresponding engine configuration. The version is specified for 4T and has 3 piston rings.

Technical data

• Material: aluminum
• Piston Type: Forged
• Diameter Ø: 100.96 mm
• Letter oversize: C
• Oversize: +0.02
• Bore diameter: 101.02mm
• Compression ratio: 11.7:1
• Number of rings: 3
• Version: 4T

Vehicle assignment

The forged piston is assigned to the KTM 640 Duke, built between 1998 and 2006. The diameter of 100.96 mm, the bore diameter of 101.02 mm and the oversize +0.02 with the code letter C are particularly important for the selection.

Selection note

Before ordering, compare the listed dimensions and compression with the intended engine configuration. Based on the key technical data, the version can be specifically assigned to the KTM 640 Duke from the 1998-2006 model year range.