Four Seasons 37389 Engine Cooling Fan Temperature Switch

Engine Cooling Fan Temperature Switch

Four Seasons 37389 is a radiator-mount temperature switch for engine cooling fan control. It uses a round, male 2-terminal connector and meets or exceeds OEM requirements for the listed applications.

Compatible with Chrysler, Dodge, and Plymouth vehicles from 1981-1985, this Four Seasons Temperature Switch line part is built for direct replacement service in cooling system temperature control circuits. The 37389 part number is also referenced under Gates 51766 for the same application.

Key Features

• Radiator-mount temperature switch for engine cooling fan operation
• Round connector with 2 male terminals
• System mount design for cooling system installation
• Temperature-style switch function
• Meets or exceeds OEM specifications
• Four Seasons 37389 replacement part

Detailed Description

The Four Seasons Temperature Switch line focuses on cooling-system electrical control components, and part number 37389 follows that approach with a radiator-mounted temperature switch design. It is used to monitor coolant temperature and signal the fan circuit when the system reaches the specified operating range. For buyers searching for a Chrysler LeBaron temperature switch, Dodge Aries cooling fan switch, or Plymouth Reliant radiator temperature switch, this part number provides a direct-fit reference for the listed vehicles.

This part cross-references Gates 51766 for the same application. The 37389 part number is also listed among interchange references including A03789 and SW530.

What It Helps Fix

• Cooling fan not switching on at the proper temperature
• Cooling fan running inconsistently due to a failed temperature switch
• Radiator-mounted switch electrical signal loss
• Overheating concerns caused by inaccurate fan control
• Temperature control circuit faults in the cooling system

Installation Notes and Tips

Install at the radiator mount location specified for the vehicle application. Confirm the connector shape, terminal count, and connector gender match the original part before installation. Verify the cooling fan circuit and related wiring are in good condition so the new switch can operate correctly. For fitment-specific searches, this part is listed for 1981-1985 Plymouth Reliant, 1982-1985 Dodge Aries, 1983-1985 Dodge 600, 1983-1985 Chrysler LeBaron, 1983-1985 Chrysler New Yorker, and 1984-1985 Chrysler Town & Country.

Quality Assurance

Four Seasons 37389 is specified as meeting or exceeding OEM requirements for the listed applications, supporting dependable replacement use in factory-style cooling fan temperature control.