823-959-481-72 VW Engine Cooling Fan Switch - 75/70C Low Temp

Engine Cooling Fan Switch (75/70°C) – 823-959-481-72

The 823-959-481-72 is a vital cooling system component for owners of Rabbit, Scirocco, Jetta, and Vanagon models. In many vintage Volkswagens, the factory fan switch doesn't activate until the engine is already quite hot. This low-temp version is an inexpensive "insurance policy" for your cylinder head and head gaskets, as it ensures the radiator gets airflow much sooner.

This switch is particularly useful for Vanagon owners with the 1.9L or 2.1L Wasserboxer engine, as these vehicles have a long cooling system that benefits from proactive fan management.

Detailed Vehicle Compatibility

VW Rabbit / Golf:

1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984

VW Jetta:

1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992

VW Scirocco:

1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988

VW Vanagon:

1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991

Product Highlights & Features

• Bimetal Thermal Trigger: Uses a precise internal thermal element to ensure accurate switching points.

• High-Quality Seals: Includes a crush washer/sealing ring to prevent coolant leaks at the radiator mounting point.

• Brass Housing: Constructed from corrosion-resistant brass for excellent thermal conductivity and durability in the cooling system environment.

Technical Specifications

• Part Number: 823-959-481-72

• Operating Temperature: On at 75°C (167°F) / Off at 70°C (158°F)

• Thread Size: M22 x 1.5

• Connector: 2-Pin

Installation & Maintenance Tips

• Bleed the Air: After replacing the switch, you will likely lose a small amount of coolant. It is essential to properly bleed the air out of the cooling system, especially on Vanagons, to prevent air pockets from causing local overheating.

• Check the Fan Relay: If the fan does not turn on even with a new switch, check your Cooling Fan Relay. The switch only sends the signal; the relay handles the heavy electrical load.

• Coolant Condition: While the system is open, check the color and clarity of your coolant. If it looks brown or rusty, a full system flush is recommended to ensure the new switch remains free of debris.