





WISECO 4T Forged Series Piston Kit - ø79.00mm (Manufacturer part number: W40249M07900A) — a forged piston designed for Cross machines, intended for original replacement or as part of an engine preparation. Made from aluminum, this Wiseco piston follows the brand's tradition, recognized for decades for its robust and precise engine components.
The piston is machined to manufacturer specifications and identified by the oversize letter A to fit cylinders that have been bored according to these tolerances. Its forged design offers geometry and dimensional accuracy suited to the thermomechanical stresses of off-road use. The kit includes the necessary rings for a complete and clean installation.
Notably suitable for Honda CRF 250 R / CRF 250 RX models (2023-2024) listed in compatibility. Always check the bore size and reference before installation to ensure proper assembly.