Four Seasons 37414 Engine Cooling Fan Temperature Switch

Engine Cooling Fan Temperature Switch Overview

Four Seasons Temperature Switch 37414 is an engine cooling fan temperature switch for radiator-mount applications. It monitors coolant temperature and signals the fan system when cooling demand changes, helping maintain stable operating temperatures in Volkswagen cooling systems.

Compatible with select Volkswagen Passat, Cabriolet, Golf, and Jetta models, this Four Seasons Temperature Switch line is built for direct replacement use in temperature-controlled radiator mounting locations. Part number 37414 meets or exceeds OEM requirements.

Key Features

• Engine cooling fan temperature switch for radiator mount applications
• Open connector shape with male connector gender
• 1 terminal configuration for straightforward electrical connection
• System mount design with temperature-style operation
• Meets or exceeds OEM specifications
• Four Seasons 37414 for temperature switch replacement service

Detailed Product Description

Four Seasons 37414 is a temperature switch used in radiator-mounted engine cooling fan control systems. It is specified with an open connector shape, one terminal, and a male connector interface, making it a direct-fit service part for vehicles that use this style of cooling fan temperature switch. The Four Seasons Temperature Switch product line focuses on replacement components for thermal control circuits, and this part number is listed for Volkswagen cooling applications including Passat, Cabriolet, Golf, and Jetta.

This part cross-references A03814 for the same application.

What This Part Helps Address

• Cooling fan not switching on at the correct coolant temperature
• Cooling fan running inconsistently due to a failed temperature switch
• Radiator-mounted thermal control circuit faults
• Overheating concerns caused by inaccurate fan activation signals
• Electrical connection issues at the temperature switch terminal

Installation Notes and Tips

Verify the connector shape, terminal count, and mounting location before installation. This part is listed for system mount, radiator-mount temperature switch applications, so confirm the original switch style matches the vehicle’s cooling fan control setup. For fitment, use the exact vehicle listing: Fits 1990-1994 Volkswagen Passat, N/A; Fits 1985-1993 Volkswagen Cabriolet, N/A; Fits 1988-1992 Volkswagen Golf, N/A; Fits 1987-1992 Volkswagen Jetta, N/A.

Quality Assurance

Four Seasons lists this part as meeting or exceeding OEM requirements, supporting replacement use in factory-style cooling fan temperature switch applications. Part number 37414 is cataloged for confirmed Volkswagen fitments and interchange reference 53919521, A03814, and SW573.