- New


The seal that stops gearbox oil leaking around the front sprocket shaft.
MOOSE RACING offers this countershaft seal kit for YAMAHA WR 250 F, YZ 250 F, YZ 250 FX from 2014 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.
The benefits:
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.
Seepage around the shaft or a dropping oil level are warning signs. The seal is also replaced every time the cases are split.
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.
Check the exact model and year of your bike in the list below before ordering.
Fits:
YAMAHA WR 250 F 2025
YAMAHA WR 250 F 2024
YAMAHA WR 250 F 2023
YAMAHA WR 250 F 2022
YAMAHA WR 250 F 2021
YAMAHA WR 250 F 2020
YAMAHA WR 250 F 2019
YAMAHA WR 250 F 2018
YAMAHA WR 250 F 2017
YAMAHA WR 250 F 2016
YAMAHA WR 250 F 2015
YAMAHA YZ 250 F 2025
YAMAHA YZ 250 F 2024
YAMAHA YZ 250 F 2023
YAMAHA YZ 250 F 2022
YAMAHA YZ 250 F 2021
YAMAHA YZ 250 F 2020
YAMAHA YZ 250 F 2019
YAMAHA YZ 250 F 2018
YAMAHA YZ 250 F 2017
YAMAHA YZ 250 F 2016
YAMAHA YZ 250 F 2015
YAMAHA YZ 250 F 2014
YAMAHA YZ 250 FX 2025
YAMAHA YZ 250 FX 2024
YAMAHA YZ 250 FX 2023
YAMAHA YZ 250 FX 2022
YAMAHA YZ 250 FX 2021
YAMAHA YZ 250 FX 2020
YAMAHA YZ 250 FX 2019
YAMAHA YZ 250 FX 2018
YAMAHA YZ 250 FX 2017
YAMAHA YZ 250 FX 2016
YAMAHA YZ 250 FX 2015
Click on your bike to see all compatible parts.
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