ATHENA Cylinder Head Gasket for TM RACING MX 250 1994-2022

On TM RACING MX 250 from 1994 to 2022, the ATHENA S410465001004 head gasket fits in place of the original part. Between the cylinder head and the cylinder, the head gasket contains the pressure of every explosion. Once tightened, it takes the shape of the parts: on reassembly you need a new gasket to keep full compression.

Specifications

• Brand: ATHENA
• Manufacturer part number: S410465001004
• EAN code: 8051757152858
• Thickness: OE

When to replace it?

• Loss of compression, less lively engine.
• Black marks or hissing at the head/cylinder joint.
• Coolant level dropping, bubbles in the radiator.

Every time the cylinder head is removed, and therefore at every piston change.

Fitting tips

1. Clean the cylinder head and cylinder faces without scratching them.
2. Fit the gasket dry, the right way round, centred on the studs and the coolant holes.
3. No sealant on the gasket.
4. Tighten the cylinder head in a criss-cross pattern, in several stages, to the manufacturer's torque.
5. Refill the coolant and take the opportunity to replace the spark plug.

Why ATHENA?

Founded in 1973 near Vicenza, Athena is an Italian engine gasket specialist that has made its gaskets on its own production lines since day one, as well as a renowned manufacturer of pistons and cylinder kits. The brand supplies original equipment to manufacturers such as KTM, Ducati, Fantic, Piaggio and Triumph, and is a partner of the MXGP motocross world championship.

Spare parts and items to plan

• Top-end gasket kit : VHM SK33000.VITON · VHM SK33000
• Piston : PROX · WOSSNER
• Coolant : MOTUL 1 L · LIQUI MOLY 1 L

Frequently asked questions

Is the gasket enough to refit the cylinder head?
It replaces the head gasket only. If you also remove the cylinder, go for a complete top end gasket kit instead.

Compatibility

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

Fits:
TM RACING MX 250 2022
TM RACING MX 250 2021
TM RACING MX 250 2020
TM RACING MX 250 2019
TM RACING MX 250 2018
TM RACING MX 250 2017
TM RACING MX 250 2016
TM RACING MX 250 2015
TM RACING MX 250 2014
TM RACING MX 250 2013
TM RACING MX 250 2012
TM RACING MX 250 2011
TM RACING MX 250 2010
TM RACING MX 250 2009
TM RACING MX 250 2008
TM RACING MX 250 2007
TM RACING MX 250 2006
TM RACING MX 250 2005
TM RACING MX 250 2004
TM RACING MX 250 2003
TM RACING MX 250 2002
TM RACING MX 250 2001
TM RACING MX 250 2000
TM RACING MX 250 1999
TM RACING MX 250 1998
TM RACING MX 250 1997
TM RACING MX 250 1996
TM RACING MX 250 1995
TM RACING MX 250 1994