Hella 007800121 Engine Cooling Fan Switch

Reliable Engine Cooling Fan Switch for BMW Models

The Hella 007800121 Engine Cooling Fan Switch is designed to maintain optimal engine temperature in select BMW vehicles. Engineered with precision, this switch ensures efficient fan operation to prevent overheating and maintain performance.

• Combi switch function with normally open contact
• Bolted mounting type for secure installation
• Three connectors with blade terminal plug type
• Rated voltage of 12V suitable for automotive electrical systems
• Double thermal switch with switch points from 85°C to 97°C
• Thread size M14 x 1.5 and spanner size 22 for compatibility

Detailed Features of the Hella Engine Cooling Fan Switch

This engine cooling fan switch from the Hella brand line is built to meet the demands of BMW models such as the 323i, 323is, 325i, 325is, 328i, 328is, M3, and Z3. The switch features a normally open contact combi switch function, which activates the cooling fan when the engine temperature reaches the specified range between 85°C and 97°C. The double thermal switch design provides reliable temperature sensing and fan control, helping to protect the engine from overheating.

Installation is straightforward with a bolted mounting type and a thread size of M14 x 1.5. The switch uses a blade terminal plug type with three connectors, compatible with the 12V electrical system common in these BMW vehicles. The spanner size of 22 allows for proper tightening during installation.

Compatible BMW Models and Applications

• BMW 323i and 323is engine cooling regulation
• BMW 325i and 325is temperature control
• BMW 328i and 328is fan switch replacement
• BMW M3 engine cooling system maintenance
• BMW Z3 cooling fan activation

Installation Notes and Tips

• Ensure the engine is cool before removing the old switch
• Use a spanner size 22 to properly tighten the switch to avoid leaks
• Check the electrical connectors for corrosion before installation
• Verify the thread size M14 x 1.5 matches the mounting point
• Confirm the switch activates within the 85°C to 97°C temperature range

Quality Assurance and Warranty

The Hella 007800121 Engine Cooling Fan Switch is manufactured under strict quality standards to ensure durability and reliable performance. As part of the Hella brand line, this switch benefits from advanced engineering and rigorous testing. While specific warranty details should be confirmed at the point of purchase, Hella products typically come with manufacturer-backed quality assurance to support long-term use in BMW vehicles.