The Athena Top End Gasket Kit, part number P400270600099, is designed for dependable top-end engine service on select GasGas EC and EX two-stroke motorcycles. Manufactured in state-of-the-art, computer-controlled facilities, this kit helps provide the precise sealing performance required during cylinder, piston, and related engine component installation.
Each gasket and seal is produced from high-quality materials, and the complete kit meets or exceeds OEM specifications for fit and function. The kit includes the necessary gaskets and seals from the base gasket upward, making it a practical choice for top-end rebuilds, routine engine maintenance, and component replacement. Athena is the manufacturer and brand associated with this part, while the listed vendor part number is P400270600099.
Fitment includes 2021 GasGas EC 250, 2021 GasGas EC 300, 2022 GasGas EC 250, 2022 GasGas EC 300, 2023 GasGas EC 250, 2023 GasGas EC 300, 2021 GasGas EX 300, 2022 GasGas EX 250, 2022 GasGas EX 300, and 2023 GasGas EX 300 models. Confirm the motorcycle year, model, engine size, and existing gasket configuration before ordering to ensure proper application.
Features:
- Manufactured in state-of-the-art, computer-controlled facilities
- Gaskets made from high-quality materials
- Meets or exceeds OEM specifications
- Includes gaskets and seals from the base gasket upward
- Designed for select GasGas EC and EX 250/300 two-stroke models
Fitment:
2021 Gas-Gas EC 250
2021 Gas-Gas EC 300
2021 Gas-Gas EX 300
2022 Gas-Gas EC 250
2022 Gas-Gas EC 300
2022 Gas-Gas EX 250
2022 Gas-Gas EX 300
2023 Gas-Gas EC 250
2023 Gas-Gas EC 300
2023 Gas-Gas EX 250
2023 Gas-Gas EX 300