Athena Piston Kit for GasGas, Husqvarna, and KTM (S4F06640018C)

Upgrade engine performance and durability with the Athena S4F06640018C Piston Kit, engineered for compatible GasGas, Husqvarna, and KTM applications. Developed to withstand demanding operating conditions, this piston kit has been tested on engine dynamometer benches under progressive stress loads and validated on the track to support reliable performance in extreme environments.
The piston is manufactured using a reverse-extrusion process for consistent strength and dimensional integrity. Its high resistance to mechanical and thermal stresses helps it perform reliably during extended use, aggressive riding, and high-temperature engine operation. The kit is designed for use with the original equipment cylinder, providing a dependable replacement solution for engine rebuilds and performance-focused maintenance.
Included piston rings are engineered to reduce friction against the OE cylinder, helping promote smoother operation and efficient power delivery. By supporting reduced drag between the piston assembly and cylinder wall, the Athena S4F06640018C can help restore engine response while maintaining compatibility with the original cylinder configuration. Verify application and fitment requirements before installation to ensure proper compatibility with your specific motorcycle.

Features:

• Brand: Athena

• Part Number: S4F06640018C

• Application: Designed for compatible GasGas, Husqvarna, and KTM motorcycles

• Performance Testing: Validated on engine dynamometer benches and on track under progressive stress loads

• Construction: Manufactured by reverse extrusion for strength and consistency

• Durability: High resistance to mechanical and thermal stresses

• Piston Rings: Designed to reduce friction with the OE cylinder

• Cylinder Compatibility: Intended for use with the original equipment cylinder

Ships from Parts Unlimited.