Countershaft O-Ring for KTM 125-400 EXC/SX fits 2000-2023 - 0770230020

This genuine OEM countershaft O-ring is a critical sealing component for your motorcycle's transmission system. It is specifically designed to prevent oil leaks from the countershaft assembly, ensuring that your engine remains clean and properly lubricated during operation.

Compatible with an extensive range of models including KTM 125 EXC/SX/SXS (2000-2023), KTM 150 SX/XC/XC-W (2009-2023), KTM 200 EXC/MXC/XC/XC-W (2001-2016), and KTM 250/400 EXC-F/SX-F (2000-2007). It also fits Husqvarna TC/TE/TX 125 and 150 models (2014-2023) as well as GasGas MC 125 (2021-2023).

Manufactured from high-quality NBR70 material, this 23.00x2.00 mm O-ring provides excellent resistance to heat, friction, and engine oil. Its precise dimensions ensure a reliable seal behind the front sprocket spacer, protecting your transmission from contaminants.

We recommend replacing this O-ring whenever you perform a front sprocket change or if you notice any oil weeping from the drive shaft area. Regular maintenance of these seals helps prevent more costly transmission repairs down the road.

Check compatibility list below to see if this part fits your motorcycle model.