
VERTEX Complete Top-End Kit - Replica Forged Piston (Manufacturer part number: VTKTC24694B-1): a top-end kit designed for motocross use, intended for the complete replacement of the piston and related top-end components. Forged aluminum piston, Replica finish, standard compression. Bore diameter indicated is 88.00 mm with piston Ø 87.97 mm (oversize B) — suitable for cylinders machined to these specifications.
This kit brings together the necessary components for a clean and quick top-end replacement: internal wear parts and sealing gaskets, delivered together to minimize trips to the workshop. The dimensions and the oversize letter (B) allow you to select the correct size for your cylinder.
Example compatibilities: KTM 350 EXC‑F WESS (2023), HUSQVARNA FE 350 (2023), GAS GAS EC 350 F (2023). Before installation, check bore tolerances and engine compatibility.
Important: top-end kits do not include ignition or clutch cover gaskets — remember to order them separately if you are also changing the timing chain or opening these covers.