Thermostat 59078Q3 kit is for use in older MerCruiser inline 4- and 6-cylinder engines made by General Motors. This 2-piece kit includes a 140°F thermostat and a high-quality cork gasket to ensure proper engine temperature regulation and peak efficiency. Quicksilver parts provide performance, protection, and peace of mind.
- 140°F thermostat for older MerCruiser GM inline engines
- Includes custom-cut cork thermostat gasket
- Easy to replace with common shop tools
- Proper engine cooling temperature ensures peak performance
- Produced to meet original equipment manufacturer specifications
