Customer Ratings
Athena Complete Gasket Kit P400462900003
Athena's Complete Engine Gasket Kits for offroad applications are engineered to meet the toughest demands of motocross, enduro, and ATV/UTV engines. Designed for full engine overhauls, this kit provides every seal and gasket needed to restore performance and reliability under the harshest conditions.
Every seal you need, in one complete kit
This Athena Engine Kit includes all essential gaskets and seals: head, base, crankcase, exhaust, valve cover, engine oil seals, valve stem seals, O-rings, and washers. Nothing is left out-each component is selected to ensure long-lasting performance in high-stress environments.
Race-developed technology for offroad performance
Athena supports top teams in MXGP, AMA Supercross, Pro Motocross, and EnduroGP. Gaskets are tested on track and refined through direct collaboration between Athena's R&D department and race engineers. The same technology used in competition is made available to all riders.
Trusted by OEMs worldwide
Athena has long-standing partnerships with leading European and Japanese offroad manufacturers. This ensures perfect OEM compatibility, precise fitment, and consistent performance across a wide range of offroad engines.
Advanced design and total quality control
Each gasket is developed using 2D/3D modeling, Fuji Paper and Tin Testing, FEM simulations, and validated on static and dynamic test benches. Multi-layer embossing ensures uniform compression and optimal sealing. Dimensional accuracy is verified using profilometers and Virtek® systems.
Description:
- All gaskets and seals included for complete engine rebuilds
- Perfect fit with OEM offroad engine specifications
- Built to withstand extreme and prolonged conditions
- Developed with factory teams in MXGP and AMA
Brand: Athena
Part Number: P400462900003
Fitment:
- Sherco 300 SEF Factory 2014-2023
- Sherco 300 SEF-R 2014-2020
Note: Image is for reference only, actual product may vary slightly.
