Description
The Sierra Marine 18-3647D Marine Series Thermostat is a 160°F replacement engine thermostat designed for compatible 1987 and newer GM marine engines with standard cooling systems. Supplied in display packaging, this thermostat includes the required gasket for installation.
Designed for marine engine cooling applications, the 18-3647D is manufactured from high-quality materials to provide accurate fit, function and reliable performance in compatible GM engine applications.
Features
- Marine Series replacement thermostat
- Designed for compatible 1987 and newer GM engines
- Intended for standard cooling systems
- 160°F temperature rating
- Gasket included
- Display-pack configuration
- Designed for accurate fit and function
- Manufactured from high-quality materials
- Designed to meet or exceed the original equipment part it replaces
- Approximately 1-hour estimated installation time
Specifications
- Brand: Sierra Marine
- Manufacturer Part Number: 18-3647D
- Series: Marine Series
- Product Type: Engine Thermostat
- Engine Compatibility: 1987+ GM Engines
- Cooling System: Standard Cooling
- Temperature Rating: 160°F
- Gasket: Included
- Packaging: Display Pack
- Estimated Installation Time: 1 Hour
- Condition: Brand New
- Product: Genuine Sierra Marine Product
What’s Included
- Sierra Marine 18-3647D thermostat
- Thermostat gasket
Compatibility
Designed for compatible:
- 1987 and newer GM marine engines
- Applications equipped with standard cooling systems
- Applications requiring a 160°F thermostat
Important Fitment Information
GM marine engines can use different thermostats depending on engine model and cooling-system configuration. Confirm that the application requires a 160°F thermostat for a standard cooling system before ordering.
Verify Sierra Marine manufacturer part number 18-3647D against the existing thermostat or application information to confirm compatibility.
Important
- Rated at 160°F.
- Designed for standard cooling applications.
- Gasket is included.
- Supplied in display packaging.
- Intended for compatible 1987+ GM marine engines.
- Verify the engine and cooling-system configuration before installation.
Warranty
Backed by a limited 2-year manufacturer warranty.
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