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Mercury MerCruiser 87290A 4 V8 Center Rise Thermostat Housing Sierra 18-1994
- Lower Thermostat Housing
- For use with:
- Mercruiser V-6 (4.3-Liter) and V-8 (5.0 and 5.7-Liter) Small Block GM (Chevy) Engines.
- Manufacturer: Sierra
- Part Number: 18-1994
- Also Known As: 87290A4, 181994