Hella Radiator Fan Temperature Switch - 6ZT 007 800-041

The Hella Radiator Fan Temperature Switch is manufactured to OE-quality standards to ensure reliab...

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AutodocHELLA Temperature Switch, radiator fan PEUGEOT,ALFA ROMEO 6ZT 007 800-041 1160007256,116000725600,1160007256000 116000725602,11600072560200,60506988
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Product Information

Full details

The Hella Radiator Fan Temperature Switch (6ZT 007 800-041) is a vital component for automotive technicians and DIY enthusiasts looking to maintain optimal engine cooling systems. Engineered to OE-quality standards, this 12V switch ensures your radiator fan engages precisely when needed to prevent engine overheating. While it offers superior reliability and an exact fit, users must carefully verify their vehicle’s thread size and temperature activation requirements before installation to ensure full compatibility.

All features

Model Part Number6ZT 007 800-041
BrandHella

Extended Product Information

FAQs

What is the temperature range of this switch?

This switch operates between 75 and 85 degrees Celsius.

Is this a universal part?

No, it is specific to vehicles requiring an M 22 x 1,5 thread and 12V normally open contact. Always check your vehicle manual.

Does it come with a gasket/washer?

It is recommended to check the specific package contents, but usually, a new sealing crush washer is required if one is not included.

Can I use this on a 24V system?

No, this part is specifically designed for 12V automotive electrical systems.

How do I know if my sensor is faulty?

A faulty sensor may fail to activate the fan, leading to engine overheating, or it may remain permanently 'on' causing the fan to run constantly.

Troubleshooting

Radiator fan fails to turn on

Check if the coolant temperature has actually reached the 75-85°C switch range. Verify electrical continuity at the blade terminals and inspect the fan relay/fuse.

Coolant leaking around the sensor

Ensure the sealing washer is present and that the unit is tightened to the correct torque. If it continues to leak, inspect the radiator threads for damage.

Fan runs continuously

This often indicates a failed 'stuck closed' switch or a fault in the fan relay circuit. Disconnect the sensor; if the fan stops, the switch is likely faulty.

Pros and Cons

Pros

  • Meets strict OE quality benchmarks
  • Precise activation temperature range
  • Durable construction for long-term reliability
  • Standardized M 22 x 1,5 fitting

Cons

  • Not universal; requires exact vehicle fitment verification
  • Requires system drainage during installation
  • Does not include replacement crush washers

Setup, Compatibility & Care

Installation requires basic mechanical knowledge and access to the vehicle's cooling system.

  1. Preparation: Ensure the engine is completely cold before starting to avoid burns from pressurized coolant.
  2. Drainage: Partially drain the radiator to lower the coolant level below the sensor port.
  3. Removal: Carefully disconnect the blade terminal connector and unscrew the old switch using an appropriate socket.
  4. Installation: Thread the new Hella switch into place, ensuring the sealing washer is seated correctly to prevent leaks. Tighten to manufacturer torque specifications.
  5. Refill: Top off the cooling system with the manufacturer-recommended coolant, bleed any air from the system, and check for leaks.

Always verify that your vehicle requires an M 22 x 1,5 thread pitch before proceeding, as incorrect force during installation can damage the radiator housing.

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