KTM 640 LC 4 Enduro [1998-2006] - WÖSSNER forged pistons

WÖSSNER forged pistons for KTM 640 LC 4 Enduro

The forged WÖSSNER piston is intended for the KTM 640 LC 4 Enduro in the entire model year range from 1998 to 2006. The aluminum version is intended for use in the upper engine range and offers a clearly defined basis for selecting a suitable piston based on diameter, oversize and bore size.

Technical features

• Material: aluminum
• Piston Type: Forged
• Diameter Ø: 101.94 mm
• Letter oversize: 100
• Oversize: +1.00
• Bore diameter: 102.00 mm
• Compression ratio: 11.7:1
• Number of piston rings: 3
• Stroke: 4T

Vehicle assignment

The piston is assigned to the KTM 640 LC 4 Enduro from the years 1998 to 2006. The stated oversize of +1.00 and the bore diameter of 102.00 mm support the comparison with the relevant engine data. Before making a selection, the existing dimensions should be compared with the technical values ​​mentioned.

Selection Notes

The piston diameter of 101.94 mm, the oversize +1.00, the bore diameter of 102.00 mm and the compression ratio of 11.7:1 are particularly relevant for the clear assignment. The marking “100” for the oversize complements the technical specification of the piston.