Calorstat THF1378.92 Engine Coolant Thermostat

Engine Coolant Thermostat for OE-Style Cooling Control

Calorstat THF1378.92 is a standard engine coolant thermostat built for precise coolant flow control in a wide range of domestic and import applications. With a 92 C / 197 F opening temperature, it helps regulate engine operating temperature for vehicles such as the Ford Windstar, Dodge Ram 1500, and Chevrolet C1500.

Key Features

• Standard engine coolant thermostat for replacement cooling system service
• Opening temperature: 92 C / 197 F
• Sealing flange outside diameter: 2.12 in.
• Height between flanges: 0.88 in.
• Direct replacement style for many Ford, Dodge, Chevrolet, GMC, Cadillac, Buick, Chrysler, and Aston Martin applications
• Part number THF1378.92 for catalog and service matching

Detailed Description

Calorstat THF1378.92 is an engine coolant thermostat designed to open at 92 C / 197 F, helping maintain stable coolant circulation once the engine reaches operating temperature. The standard design and measured flange dimensions support accurate fitment in applications that call for this thermostat profile. This part cross-references Dorman - HELP 45359 for the same application. Use THF1378.92 when servicing cooling systems on vehicles including the Ford Explorer, Dodge Durango, and GMC Yukon, where correct thermostat operation is critical to temperature regulation.

What This Part Helps Address

• Engine running too cool or too hot due to thermostat malfunction
• Delayed coolant circulation after cold start
• Temperature fluctuation during normal driving
• Cooling system service on high-mileage trucks and vans
• Replacement of a worn thermostat during radiator or water pump repair

Installation Notes and Tips

Verify the thermostat opening temperature and flange dimensions against the original part before installation. Clean the housing sealing surfaces thoroughly and inspect the gasket or seal area for corrosion, pitting, or debris. Confirm the application by year, make, and model before ordering; THF1378.92 is listed for vehicles such as 2001-2002 Ford Windstar, 1997-1999 Dodge Ram 1500, and 1992-1995 Chevrolet C1500. For best results, refill and bleed the cooling system according to the vehicle service procedure after installation.

Quality Assurance

Calorstat cooling components are cataloged for service replacement use, and this thermostat is identified by part number THF1378.92 for accurate ordering and application matching.