Description
Countershaft seal leaks compromise engine oil integrity and create messy, unreliable conditions in the garage or on the track. The COMETIC OS425 delivers precision sealing where it matters most, engineered to maintain proper tolerances under demanding operating conditions. Replace this seal whenever servicing your countershaft sprocket to prevent costly oil loss and ensure long-term drivetrain reliability.
- Made in U.S.A.
- High-quality elastomer construction
- Maximum performance tolerances
- Extended seal longevity
- Bolt-on replacement
- Countershaft sprocket fitment
- COMETIC OS425 MPN






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