SIERRA 18-43017 Thermostat-MerCruiser Indmar
A failed thermostat can cause an engine to run at outside of its optimum temperature and can adversely affect performance and efficiency. The fix can be as simple as replacing the thermostat.
For 50 years Sierra has been producing parts engineered to meet or exceed the specifications of marine engine manufacturers and has gained the confidence of engine manufacturers and boat builders. Boaters and technicians can be assured a Sierra part will fit right the first time and restore function to OEM specifications.
Features:
- 160°
- Indmar GM and Ford Raw Water Cooled Engines
- Fits:Â MCM 496 Mag & HO and MIE 8.1L & HO





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