Description
Countershaft seal leaks are a common source of oil loss that compromises your transmission’s reliability and performance. The COMETIC Shift Shaft Seal OS420 is a precision-engineered replacement seal that eliminates leaks at the source, ensuring proper lubrication of internal drivetrain components. This is an essential service item whenever you’re replacing or servicing your countershaft sprocket.
- Manufacturer: COMETIC
- Part Number: OS420
- Application: Countershaft sprocket seal
- Material: High-performance elastomer
- Design: OEM-equivalent specifications
- Installation: Bolt-on replacement
- Origin: Made in USA
- Service Life: Maximum longevity
- Fitment: Vehicle-specific









