ATHENA Timing Chain for KTM EXCF, SXF, XCF, XCFW 250, 450, 500, HUSQVARNA FC, FE, FS, FX 450 and HUSABERG FE 250 2006-2024

The ATHENA S41400007 timing chain is designed for KTM EXCF 250, EXCF 450, EXCF 500, SXF 250, SXF 450, XCF 250, XCF 450, XCFW 250, XCFW 500, HUSQVARNA FC 450, FE 450, FS 450, FX 450 and HUSABERG FE 250 from 2006 to 2024. On a four-stroke, the timing chain links the crankshaft to the camshafts. A tired chain gets noisy, upsets the timing and can jump a tooth: with valves hitting the piston, the damage is severe.

Specifications

• Brand: ATHENA
• Manufacturer part number: S41400007
• EAN code: 8057018265800
• Weight: 230 g
• Engine: 4-stroke

When to replace it?

• Rattling or chain noise on the timing side, especially at idle.
• Tensioner at the end of its travel.
• Timing marks that no longer line up.

At the intervals in the service manual, and as soon as the tensioner reaches the end of its travel. Check the sprockets and the guides at the same time.

Fitting tips

1. Set the engine at top dead centre on the compression stroke, marks aligned, before removing anything.
2. On most motocross engines the chain is endless, with no master link: replacing it means removing the crankshaft sprocket or a camshaft, as described in the manual.
3. Line the camshafts up with their timing marks again, then put the tensioner back under tension.
4. Turn the engine over two full turns by hand and check the timing again before starting.
5. Refit with a valve cover gasket in good condition.

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

• Cam chain tensioner : GE.CO
• Valve cover gasket : MOOSE 819037MSE · MOOSE 817843MSE
• Valve shims : PROX 29.890 · PROX 29.890
• 4-stroke engine oil : MOTUL 10W50 · LIQUI MOLY 10W40 1 L

Frequently asked questions

Should I replace the tensioner?
Check it: a worn tensioner, or one at the end of its travel, must be replaced along with the chain.

Compatibility

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

Fits:
HUSABERG FE 250 2013
HUSQVARNA FC 450 2018
HUSQVARNA FC 450 2017
HUSQVARNA FC 450 2016
HUSQVARNA FE 450 2019
HUSQVARNA FE 450 2018
HUSQVARNA FE 450 2017
HUSQVARNA FE 450 2016
HUSQVARNA FE 450 2015
HUSQVARNA FE 450 2014
HUSQVARNA FS 450 2018
HUSQVARNA FS 450 2017
HUSQVARNA FX 450 2018
HUSQVARNA FX 450 2017
KTM EXCF 250 2013
KTM EXCF 250 2012
KTM EXCF 250 2011
KTM EXCF 250 2010
KTM EXCF 250 2009
KTM EXCF 450 2019
KTM EXCF 450 2018
KTM EXCF 450 2017
KTM EXCF 500 2023
KTM EXCF 500 2022
KTM EXCF 500 2021
KTM EXCF 500 2020
KTM SXF 250 2012
KTM SXF 250 2011
KTM SXF 250 2010
KTM SXF 250 2009
KTM SXF 250 2008
KTM SXF 250 2007
KTM SXF 250 2006
KTM SXF 450 2018
KTM SXF 450 2017
KTM SXF 450 2016
KTM XCF 250 2012
KTM XCF 250 2011
KTM XCF 250 2010
KTM XCF 250 2009
KTM XCF 450 2018
KTM XCF 450 2016
KTM XCFW 250 2013
KTM XCFW 250 2012
KTM XCFW 250 2011
KTM XCFW 250 2010
KTM XCFW 250 2009
KTM XCFW 500 2024
KTM XCFW 500 2023
KTM XCFW 500 2022
KTM XCFW 500 2021
KTM XCFW 500 2020