Thermostat 991551T1 is designed for newer MerCruiser V6 and V8 engines with closed cooling systems. This 160°F thermostat and seal kit ensure proper operating temperature for peak performance and fuel efficiency. Produced to meet Mercury Marine original equipment manufacturer specifications for a perfect fit.
- 160°F thermostat and seal kit
- Fits 1998 and newer MerCruiser marinized V6 and V8 engines
- Specifically for engines with closed cooling systems
- Easy to replace with common shop tools
- Maintains optimal engine temperature for efficiency
