Hella 007801051 Engine Cooling Fan Switch

Hella Engine Cooling Fan Switch 007801051

The Hella 007801051 engine cooling fan switch is a 12-volt, normally open temperature switch built for controlled fan activation in cooling system circuits. With an M22 x 1.5 thread, 2 blade-terminal connectors, and a yellow color code, it is a direct-fit style solution for vehicles that use a threaded fan switch in the radiator or coolant passage.

For drivers searching for an engine cooling fan switch for Honda Civic or similar cooling-system applications, this Hella part number 007801051 provides the switching range needed to trigger fan operation between 92°C and 97°C. It is a practical replacement for vehicles that rely on a bolted, threaded thermal switch to manage engine temperature.

Key Features

• Brand: Hella
• Part number: 007801051
• Engine cooling fan switch with normally open contact
• Switch point range: 92°C to 97°C
• 12V rated voltage
• M22 x 1.5 thread size
• 2 connectors with blade terminal plug type
• Bolted mounting type
• Yellow colour coding for identification

Product Details

The Hella 007801051 cooling fan switch monitors coolant temperature and closes the circuit at the specified switch point to command fan operation. This helps maintain stable operating temperature in systems that use a threaded thermal switch rather than an electronic control module. Hella 007801051 is a focused replacement choice for technicians and DIY buyers looking for an engine cooling fan switch with the correct thread, connector style, and voltage rating.

Hella’s product line is widely recognized for electrical and thermal control components used in automotive cooling and engine management systems. This switch follows the expected OE-style layout for threaded fan switch applications and is suited to vehicles that require a 2-pin, blade-terminal, normally open temperature switch.

This part cross-references Dorman - HELP 82646 and Gates 18807 for the same application.

What It Helps Address

• Cooling fan not switching on at the proper temperature
• Engine running hotter than normal in stop-and-go traffic
• Intermittent fan operation caused by a worn thermal switch
• Temperature control issues in threaded radiator or coolant housing switch locations
• Replacement needs for a 12V, 2-terminal fan switch setup

Installation Notes

Verify the thread size, connector style, and switch temperature range before installation. This Hella cooling fan switch uses an M22 x 1.5 thread, 2 blade terminals, and a bolted mounting design, so the mating connector and sealing surface must match the vehicle’s original configuration. Confirm the cooling system is cool before removal and installation, and check for proper fan activation after fitting.

Compatible With cooling-system applications on Honda Civic and other vehicles that use the same threaded fan switch specification. Fits applications requiring a 92°C to 97°C switch point and a 12V normally open contact design.

Quality Assurance

Hella manufactures automotive electrical components to support reliable temperature-based fan control. The 007801051 part number is built to match the specified connector, voltage, and thermal switching requirements for service replacement use.