ATHENA Complete Engine Gasket Kit with oil seals ref. P400270900098 for HUSQVARNA, KTM and GAS GAS 2023-2027

ATHENA offers this complete engine gasket kit for HUSQVARNA, KTM and GAS GAS 2023-2027. A full rebuild means opening the whole engine: cylinder, head, cases and covers. Every gasket removed must be replaced.

Why buy a complete engine gasket kit?

The benefits:

• One part number for the whole engine: cases, covers, cylinder and head.
• Much cheaper than buying the gaskets separately.
• Avoids the bike sitting idle for a forgotten gasket.

Why choose ATHENA?

Athena, original-equipment supplier to KTM and Ducati from Italy, laser-cuts its gaskets from materials designed for heat, oil and coolant.

When should you replace the gaskets on your HUSQVARNA FC 350?

An oil or coolant leak, seepage around the cases or a loss of compression signal a tired gasket. Having the kit to hand means the bike is never stuck waiting for one missing gasket.

The manufacturer publishes no hour interval for this model: have the con-rod play checked at every piston change. Cross-Mania guideline: rebuild the bottom end every 2 to 3 top-end rebuilds.

Specifications and fitting tips

• Manufacturer part number: P400270900098

Spare parts and items to plan

• Crankshaft bearings and seals : see the selection
• Engine oil seals : PROX 26.640001 · PROX 41.6-405561
• Gearbox bearings : HOT RODS TBK0081 · HOT RODS TBK0111
• 4-stroke engine oil : MOTUL 10W50 · LIQUI MOLY 10W40 1 L
• Coolant : LIQUI MOLY 1 L · TWIN AIR
• Spark plug : see the selection

Compatibility

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

Fits:
GAS GAS ECF 350 2027
GAS GAS ECF 350 2026
GAS GAS ECF 350 2025
GAS GAS ECF 350 2024
GAS GAS ES 350 2025
GAS GAS ES 350 2024
GAS GAS EXF 350 2025
GAS GAS EXF 350 2024
GAS GAS MCF 350 2025
GAS GAS MCF 350 2024
HUSQVARNA FC 350 2027
HUSQVARNA FC 350 2026
HUSQVARNA FC 350 2025
HUSQVARNA FC 350 2024
HUSQVARNA FC 350 2023
HUSQVARNA FE 350 2027
HUSQVARNA FE 350 2026
HUSQVARNA FE 350 2025
HUSQVARNA FE 350 2024
HUSQVARNA FX 350 2027
HUSQVARNA FX 350 2026
HUSQVARNA FX 350 2025
HUSQVARNA FX 350 2024
HUSQVARNA FX 350 2023
KTM EXCF 350 2027
KTM EXCF 350 2026
KTM EXCF 350 2025
KTM EXCF 350 2024
KTM SXF 350 2027
KTM SXF 350 2026
KTM SXF 350 2025
KTM SXF 350 2024
KTM SXF 350 2023
KTM XCF 350 2027
KTM XCF 350 2026
KTM XCF 350 2025
KTM XCF 350 2024
KTM XCF 350 2023