- Genuine OEM Alpha One Outdrive Water Pocket Cover Gasket
- For use with: Mercury MC-1/R/MR/Alpha One Engines
- Manufacturer: Mercury MerCruiser
- Model Number: Cover Gasket
- Part Number: 27-55810
- Also Known As:
- Mercury 27-55810-1, 27558101, 27-55810, 2755810
- Sierra 18-0894, 18-0894-9, 1808949