
ATHENA Top-End Gasket Kit (manufacturer part number: P400485600039): the essential kit to renew the top-end of your dirt bike. Designed to gather everything needed for the disassembly/reassembly of the cylinder and cylinder head, this kit ensures a clean and controlled sealing after intervention.
This kit contains all the necessary components for reassembling the cylinder and cylinder head, including valve stem seals, to ensure a complete restoration of the top-end.
Whether you are preparing for a service after an off-road season or undertaking an engine overhaul, this kit makes the job easier and minimizes trips to the workshop. Ideal for riders and mechanics who want a complete and ready-to-use pack for the cylinder head and cylinder. Compatible with many dirt bike models — including GAS GAS EC 250 F (2015), FANTIC TR250ES (2015), and YAMAHA WR 250 F (CG30) (2014) — please verify the part number and model before ordering.
Athena provides the reliability expected for the top-end: a good starting point to achieve clean compressions and a motor ready to roll on the trails.