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Mercury MerCruiser 27-41811 Exhaust Manifold Blocked Gasket Osco 8503-GB
- Exhaust Manifold Blocked Gasket
- For use with:
- Center riser Mercury MerCruiser manifold
- For fresh water/ closed cooling, the gasket separates antifreeze and raw water (no stainless plate required).
- Manufacturer: Osco
- Part Number: 8503-GB
- Also Known As: Mercury MerCruiser 27-41811, 8503GB
- Photos of actual part can be supplied upon request.