ATHENA Valve Cover Gasket for HUSQVARNA FC, FE, FS, FX 450, KTM EXCF, SXF, XCF, XCFW 450, 500 and GAS GAS EXF, MCF 450 2023-2025

The ATHENA S410270015022 valve cover gasket is designed for KTM EXCF 450, EXCF 500, SXF 450, XCF 450, XCFW 450, HUSQVARNA FC 450, FE 450, FS 450, FX 450 and GAS GAS EXF 450, MCF 450 from 2023 to 2025. On a four-stroke, the valve cover closes off the top of the engine, above the camshafts. Its gasket holds in the oil that lubricates the valve train: hardened or flattened, it lets oil seep onto the cylinder head.

Specifications

• Brand: ATHENA
• Manufacturer part number: S410270015022
• EAN code: 8051757002818
• Weight: 30 g
• Engine: 4-stroke

When to replace it?

• Oil seeping around the valve cover or into the spark plug tube.
• Gasket hardened, flattened or split on removal.

During a valve clearance check or work on the valve train, as soon as the gasket is hardened, flattened or damaged.

Fitting tips

1. Clean the groove in the cover and the cylinder head face.
2. Seat the gasket properly in its groove; sealant goes only where the manual calls for it (often the camshaft half-moons).
3. Tighten the screws in a criss-cross pattern to the manufacturer's torque, without crushing the gasket.
4. While it's apart, adjust the valve clearance with valve shims if needed and replace the spark plug.

Why ATHENA?

Athena, an Italian company founded in 1973 near Vicenza, designs gaskets, pistons and cylinder kits for motorcycles. An OEM supplier to KTM, Ducati, Fantic, Piaggio and Triumph and a partner of the MXGP world championship, it develops its parts on the test bench and on the track with racing teams.

Spare parts and items to plan

• Valve shims : PROX 29.890 · PROX 29.VSA890
• Spark plug : NGK 2305 · NGK 3521
• Valve stem seals : ATHENA · CENTAURO
• 4-stroke engine oil : MOTUL 10W50 · LIQUI MOLY 10W40 1 L

Frequently asked questions

Should it be replaced at every valve check?
Not necessarily if it is still supple and intact, but a hardened gasket always ends up leaking.

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
GAS GAS EXF 450 2024
GAS GAS MCF 450 2024
HUSQVARNA FC 450 2025
HUSQVARNA FC 450 2024
HUSQVARNA FC 450 2023
HUSQVARNA FE 450 2025
HUSQVARNA FE 450 2024
HUSQVARNA FS 450 2025
HUSQVARNA FS 450 2024
HUSQVARNA FS 450 2023
HUSQVARNA FX 450 2024
HUSQVARNA FX 450 2023
KTM EXCF 450 2024
KTM EXCF 500 2024
KTM SXF 450 2025
KTM SXF 450 2024
KTM SXF 450 2023
KTM XCF 450 2025
KTM XCF 450 2024
KTM XCF 450 2023
KTM XCFW 450 2024