MOOSE RACING countershaft seal kit for YAMAHA WR 400 F, WR 450 F, YFZ 450, YZ 426 F, YZ 450 F, YZ 450 FX from 1998 to 2025

MOOSE RACING offers this countershaft seal kit for YAMAHA WR 400 F, WR 450 F, YFZ 450, YZ 426 F, YZ 450 F, YZ 450 FX from 1998 to 2025. The front sprocket drives the chain. Its shaft passes through the case and an oil seal (often with a bush) keeps the oil in.

Why replace this seal?

The benefits:

• Stop an oil leak behind the sprocket.
• Protect the gearbox from running low on oil.

Why choose MOOSE RACING?

Moose Racing has its gaskets made in the USA and supplies OEM-quality oil seals: everything needed for a leak-free rebuild, in a single kit.

When should you replace this part?

Seepage around the shaft or a dropping oil level are warning signs. The seal is also replaced every time the cases are split.

Specifications and fitting tips

• Application: Countershaft
• Made in the USA

Cross-Mania tip: Fit the seal square with a greased lip and check the running surface on the shaft: a worn surface quickly wears a new seal.

Also needed with this part

• 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:
YAMAHA WR 400 F 2000
YAMAHA WR 400 F 1999
YAMAHA WR 400 F 1998
YAMAHA WR 426 F 2002
YAMAHA WR 426 F 2001
YAMAHA WR 450 F 2025
YAMAHA WR 450 F 2024
YAMAHA WR 450 F 2023
YAMAHA WR 450 F 2022
YAMAHA WR 450 F 2021
YAMAHA WR 450 F 2020
YAMAHA WR 450 F 2019
YAMAHA WR 450 F 2018
YAMAHA WR 450 F 2017
YAMAHA WR 450 F 2016
YAMAHA WR 450 F 2015
YAMAHA WR 450 F 2014
YAMAHA WR 450 F 2013
YAMAHA WR 450 F 2012
YAMAHA WR 450 F 2011
YAMAHA WR 450 F 2010
YAMAHA WR 450 F 2009
YAMAHA WR 450 F 2008
YAMAHA WR 450 F 2007
YAMAHA WR 450 F 2006
YAMAHA WR 450 F 2005
YAMAHA WR 450 F 2004
YAMAHA WR 450 F 2003
YAMAHA YFZ 450 2013
YAMAHA YFZ 450 2012
YAMAHA YFZ 450 2009
YAMAHA YFZ 450 2008
YAMAHA YFZ 450 2007
YAMAHA YFZ 450 2006
YAMAHA YFZ 450 2005
YAMAHA YFZ 450 2004
YAMAHA YZ 400 F 1999
YAMAHA YZ 400 F 1998
YAMAHA YZ 426 F 2002
YAMAHA YZ 426 F 2001
YAMAHA YZ 426 F 2000
YAMAHA YZ 450 F 2023
YAMAHA YZ 450 F 2022
YAMAHA YZ 450 F 2021
YAMAHA YZ 450 F 2020
YAMAHA YZ 450 F 2019
YAMAHA YZ 450 F 2018
YAMAHA YZ 450 F 2017
YAMAHA YZ 450 F 2016
YAMAHA YZ 450 F 2015
YAMAHA YZ 450 F 2014
YAMAHA YZ 450 F 2013
YAMAHA YZ 450 F 2012
YAMAHA YZ 450 F 2011
YAMAHA YZ 450 F 2010
YAMAHA YZ 450 F 2009
YAMAHA YZ 450 F 2008
YAMAHA YZ 450 F 2007
YAMAHA YZ 450 F 2006
YAMAHA YZ 450 F 2005
YAMAHA YZ 450 F 2004
YAMAHA YZ 450 F 2003
YAMAHA YZ 450 FX 2023
YAMAHA YZ 450 FX 2022
YAMAHA YZ 450 FX 2021
YAMAHA YZ 450 FX 2020
YAMAHA YZ 450 FX 2019
YAMAHA YZ 450 FX 2018
YAMAHA YZ 450 FX 2017
YAMAHA YZ 450 FX 2016