18-3551 Thermostat 142
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Maximize performance and efficiency by running your engine 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 142° and is compatible with many Mercury outboards.
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.
Key Features
- Thermostat meets or exceeds manufacturer specifications
- Temperature rating of 142°
- Compatible with Ford based 302 and 351 marine engines
- Fits V8 Chrysler engines from 1986 with Rochester carburetors
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.
| Application | OEM Part Number |
|---|---|
| Chrysler Inboard | 4142885 |
| Crusader | 96319 |
| GLM | 13030 |
| Mallory | 9-43013 |
| MerCruiser Sterndrive | 59137, 807252T1, 8M0089715, 8072521, 8052731, 35884, 32728, 59137A1, 67464 |
| Osco | 143-DEG |
| Pleasurecraft | RO26002E |
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