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Important: OIL SEALS NOT INCLUDED
ATHENA Complete Gasket Kit (oil seals not included) - P400510850390
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 gasket needed to restore performance and reliability under the harshest conditions.
Every gasket you need, in one complete kit
This Athena Engine Kit includes all essential gaskets: head, base, crankcase, exhaust, valve stem seals, O-rings, washers... Nothing is left out—each component is selected to ensure long-lasting performance in high-stress environments.
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.
All Known Replacement/Substituted Part Numbers: 11402-19811, 11402-19810, 11141-19B00, 11241-18A20, 11482-05G01, 11483-05G00, 12837-19B10, 14181-42A00, 14771-19B00, 09168-12002
| Model Name | Model Basic | Years | VIN |
|---|---|---|---|
| Ozark 250 | LT-F 250 | 2002-2017 | AJ51A |
| Quadsport | LT-Z250 | 2004-2010 | AJ4AA |
Parts showing as available at our Warehouse in Gorey ship the same business day if ordered before 1pm.
Parts showing as available at our Supplier Warehouse are ordered from our supplier and delivered to us before we can dispatch. More info is available on this page under "Stock Availability".
This website does not have access to live stock levels from our OEM Suppliers. In most cases the parts will be available but in the case of backordered parts we will notify you. We receive parts from Yamaha in 3-4 days, All others including Honda, Suzuki, Kawasaki, Polaris please allow 7-10 days for us to receive the parts.
1-2 Days using GLS/An Post
3-5 Days using GLS/Fedex
4-7 Days using GLS/Fedex
Parts That Fit
Easy to find and easy to confirm they fit your vehicle
Exceptional Product Knowledge.
We only sell tried and tested quality products.
Part Sourcing
We will find the parts you need. Email us today!
Competitive Pricing
Discount prices on parts. We offer bulk prices for Dealers.
Parts showing as available at our Warehouse in Gorey ship the same business day if ordered before 1pm.
Parts showing as available at our Supplier Warehouse are ordered from our supplier and delivered to us before we can dispatch. More info is available on this page under "Stock Availability".
This website does not have access to live stock levels from our OEM Suppliers. In most cases the parts will be available but in the case of backordered parts we will notify you. We receive parts from Yamaha in 3-4 days, All others including Honda, Suzuki, Kawasaki, Polaris please allow 7-10 days for us to receive the parts.
1-2 Days using GLS/An Post
3-5 Days using GLS/Fedex
4-7 Days using GLS/Fedex

