Description
SIERRA 140°F MerCruiser Thermostat – 18-3550
The SIERRA 140°F MerCruiser Thermostat – 18-3550 is a marine cooling-system replacement component designed for MerCruiser 120/2.5L, 140/3.0L and applicable 165 engines. Its 140°F (60°C) operating rating helps the engine reach and maintain the intended cooling-system temperature. It is a fit-specific service part; confirm the engine model, serial range, cooling configuration, and OEM interchange before installation.
- Designed for MerCruiser 120/2.5L, 140/3.0L and applicable 165 engines
- Thermostat temperature rating: 140°F (60°C)
- Helps regulate coolant flow as the engine reaches operating temperature
- Direct-fit replacement for the specified marine engine applications
- Suitable for preventive maintenance or replacement of a sticking/corroded thermostat
Specifications
- Manufacturer: Sierra
- Part Number: 18-3550
- Product Type: Thermostat
- Application: MerCruiser 120/2.5L, 140/3.0L and applicable 165 engines
- Temperature Rating: 140°F (60°C)
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