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Athenas Complete Engine Gasket Kits for off-road 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.
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.
Athena supports top teams in MXGP, AMA Supercross, Pro Motocross, and EnduroGP. Gaskets are tested on track and refined through direct collaboration between Athenas R&D department and race engineers. The same technology used in competition is made available to all riders.
Athena has long-standing partnerships with leading European and Japanese off-road manufacturers. This ensures perfect O.E.M. compatibility, precise fitment, and consistent performance across a wide range of off-road engines.
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.
Note: All Athena products which are manufactured with higher displacement and power than those permitted by law of the country where the end user lives are intended solely for competition-sports usage.
| Product Variant | Manufacturer Part # |
|---|---|
| With Oil Seal | P400270900099, P400270900096, P400270900090, P400270900091, P400250900068, P400250900069, P400250900072 |
| With Oil Seals | P400210900317, P400250900065, P400250900066, P400250900067, P400270900072, P400270900074, P400270900077, P400270900078, P400270900079, P400270900081, P400270900084, P400270900085, P400270900086, P400250900071, P400210900322, P400210900323, P400250900073, P400270900088, P400270900094, P400270900095, P400270900097, P400270900098, P400485900187, P400485900188, P400485900197, P400485900198, P400485900199, P400485900212, P400485900271, P400485900272, P400510900095, P400510900098, P400510900099 |
| Without Valve Cover | P400270870037 |
WARNING: This product contains chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm. Wash hands after handling. For more information, go to www.P65Warnings.ca.gov.