The Sierra 18-9860 bearing driver is a specialty service tool for working on select MerCruiser stern drives. It is designed to remove and install the lower driveshaft pinion bearing, making it a useful tool for lower-unit and drive service where the correct bearing installation depth and positioning are important.
Fitment
- MerCruiser TR drive units
- MerCruiser Bravo One drive units
- MerCruiser Bravo Two drive units
Replaces / Cross-References
- Mercury / MerCruiser 91-63638T
- Mercury / MerCruiser 91-63638
Verify the drive model and required service tool before use.
Questions About This Product?
Have a question about this part or need help determining if it may work for your application? Email us at customerservice@marinepartswarehouse.com with your drive model and serial number, and our team will be happy to help with any information we have available.
