Thermostat 59078 is a 140°F replacement for MerCruiser 120/2.5L and 140/3.0L engines with cast iron exhaust manifolds. This critical cooling component is easy to replace with common tools and is produced by Mercury Marine to ensure the best fit and function for your classic inboard engine.
- Fits MerCruiser 120hp (2.5L), 140hp (3.0L), and 160hp engines
- 140°F operating temperature
- Compatible with cast iron exhaust manifolds
- Easy to replace with common shop tools
- Produced to Mercury Marine stringent OEM specifications
