Athena Forged - S5F094 Piston kitRef : ATH00579A / 1120936

Designed for the demanding 4-stroke engines of quads and off-road machines, the ATHENA S5F094 forged piston (manufacturer reference S5F09400001A) combines mechanical strength and machining precision. Made from a high-silicon aluminum alloy and produced by reverse extrusion, this piston features CNC machining with tolerances of less than 0.01 mm for precise ring stacking and a reliable fit in the cylinder.

• Type: forged piston
• Diameter: Ø 93.94 mm (oversize letter A)
• Material: high-performance aluminum
• Manufacturing: reverse extrusion and CNC machining
• Controls: development and bench/track testing by Athena's R&D department (Italy)

The geometry of the crown and the surface finish promote uniform combustion propagation. Some references in the range receive a molybdenum disulfide coating on the skirt to reduce friction and contribute to longevity under intensive use.

Suitable for Quad, Cross, and Roadster environments, this piston is particularly compatible with 400 cc models such as SUZUKI LT-Z 400, ARCTIC CAT 400 DVX, and KAWASAKI KFX 400 (KSF400A). A quality replacement part, it is aimed at riders and technicians seeking dimensional precision and robustness in demanding conditions.