18-3552 Thermostat 160 Fresh Water Cooling Only
Maximize performance and efficiency of a fresh water cooled engine by running it at the optimum temperature.
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. This Sierra thermostat is engineered with a temperature rating of 160° and is compatible with many Mercury and Crusader marine engines. Sierra parts are engineered to meet or exceed the specifications of marine engine manufacturers and earned the confidence of the marine industry. Boaters and technicians can be assured a Sierra part will fit right the first time and restore function to OEM specifications.
Key Features
- Thermostat meets or exceeds manufacturer specifications
- Temperature rating of 160°
- For fresh water cooled engines only
- Compatible with 470 and 485 MerCruisers with serial number below 6218036 (1976—1983)
18-3552 Application Guide
| Application | OEM Part Numbers |
|---|---|
| Crusader | 96358 |
| GLM | 13050 |
| Mallory | 9-43000 |
| Mercruiser Stern Drive | 76270, 76270T |
The Sierra Engine Parts Selector
In addition to thermostats, we offer a wide variety of other engine parts manufactured by Sierra. To see if we have the part you need, see our Engine Parts Selector, where you can search by engine make, serial number and model or year of manufacture.
