CENTAURO Valve Stem Seals for HUSABERG FE 501, HUSQVARNA FC 450, KTM EXC 400 and GAS GAS MCF 450 1995-2025

CENTAURO offers these valve stem seals for HUSABERG FE 450, FE 501, FE 550, FS 450, FS 650, HUSQVARNA FC 350, FC 450, FE 450, FE 501, FS 450, KTM EXC 400, EXCF 350, SXF 350 and GAS GAS ECF 500, MCF 450 1995-2025. Each valve slides in a guide. At the top of the guide, a small seal (the valve stem seal) lets through just enough oil to lubricate but stops it running into the combustion chamber.

Why replace the valve stem seals?

The benefits:

• To be replaced every time the valves are removed.
• Cure oil consumption and blue smoke on start-up.
• An inexpensive part that protects valves and guides.

Why choose CENTAURO?

Centauro has made gaskets in Italy since 1958, for original equipment and the aftermarket alike, with ISO 9001-certified production.

When should you replace this part?

Blue smoke on start-up after standing overnight is the typical sign of hardened seals. They are also replaced at every head rebuild, even if they look fine.

Specifications and fitting tips

• Manufacturer part number: P650928/4

Cross-Mania tip: Replace them every time the valves are removed and oil the valve stem before sliding them on.

Also needed with this part

• Top-end gasket kit : COMETIC · CENTAURO
• 4-stroke engine oil : LIQUI MOLY 10W40 1 L · MOTUL 10W50

Compatibility

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

Fits:
GAS GAS ECF 500 2024
GAS GAS MCF 450 2025
GAS GAS MCF 450 2024
GAS GAS MCF 450 2022
GAS GAS MCF 450 2021
HUSABERG FE 390 2011
HUSABERG FE 390 2010
HUSABERG FE 450 2008
HUSABERG FE 450 2007
HUSABERG FE 450 2006
HUSABERG FE 450 2005
HUSABERG FE 450 2004
HUSABERG FE 450 IE 2013
HUSABERG FE 450 IE 2011
HUSABERG FE 450 IE 2010
HUSABERG FE 450 IE 2009
HUSABERG FE 450 S 2007
HUSABERG FE 450 S 2006
HUSABERG FE 450 S 2005
HUSABERG FE 450 S 2004
HUSABERG FE 501 2014
HUSABERG FE 501 2013
HUSABERG FE 501 2000
HUSABERG FE 501 1999
HUSABERG FE 501 1998
HUSABERG FE 501 1997
HUSABERG FE 501 1996
HUSABERG FE 501 1995
HUSABERG FE 550 2008
HUSABERG FE 550 2007
HUSABERG FE 550 2006
HUSABERG FE 550 2005
HUSABERG FE 550 2004
HUSABERG FE 570 IE 2011
HUSABERG FE 570 IE 2010
HUSABERG FE 570 IE 2009
HUSABERG FS 450 2008
HUSABERG FS 450 2007
HUSABERG FS 450 2006
HUSABERG FS 450 2005
HUSABERG FS 450 2004
HUSABERG FS 450 S 2004
HUSABERG FS 570 IE 2011
HUSABERG FS 570 IE 2010
HUSABERG FS 650 2008
HUSABERG FS 650 2007
HUSABERG FS 650 2006
HUSABERG FS 650 2005
HUSABERG FS 650 2004
HUSABERG FS 650 2003
HUSABERG FS 650 2002
HUSABERG FS 650 2001
HUSABERG FS 650 S 2004
HUSABERG FX 450 2011
HUSABERG FX 450 2010
HUSQVARNA FC 350 2025
HUSQVARNA FC 350 2024
HUSQVARNA FC 350 2023
HUSQVARNA FC 450 2025
HUSQVARNA FC 450 2024
HUSQVARNA FC 450 2023
HUSQVARNA FC 450 2022
HUSQVARNA FC 450 2021
HUSQVARNA FC 450 2020
HUSQVARNA FC 450 2019
HUSQVARNA FC 450 2018
HUSQVARNA FC 450 2017
HUSQVARNA FC 450 2016
HUSQVARNA FC 450 2015
HUSQVARNA FC 450 2014
HUSQVARNA FE 450 2024
HUSQVARNA FE 450 2022
HUSQVARNA FE 450 2021
HUSQVARNA FE 450 2020
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 FE 501 2024
HUSQVARNA FE 501 2023
HUSQVARNA FE 501 2022
HUSQVARNA FE 501 2021
HUSQVARNA FE 501 2020
HUSQVARNA FE 501 2019
HUSQVARNA FE 501 2018
HUSQVARNA FE 501 2017
HUSQVARNA FE 501 2016
HUSQVARNA FE 501 2015
HUSQVARNA FE 501 2014
HUSQVARNA FS 450 2024
HUSQVARNA FS 450 2023
HUSQVARNA FS 450 2022
HUSQVARNA FS 450 2021
HUSQVARNA FS 450 2020
HUSQVARNA FS 450 2019
HUSQVARNA FS 450 2018
HUSQVARNA FS 450 2017
HUSQVARNA FS 450 2016
HUSQVARNA FS 450 2015
KTM EXC 400 2011
KTM EXC 400 2007
KTM EXC 400 2005
KTM EXCF 350 2024
KTM SXF 350 2024
KTM SXF 350 2023