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This Hella Radiator Fan Temperature Switch (6ZT 007 800-011) is designed for vehicle cooling systems, ensuring the radiator fan operates at optimal temperatures for reliable engine performance. It's ideal for automotive mechanics and DIY enthusiasts performing cooling system repairs or upgrades. A key benefit is its OE-quality construction for dependable function. The primary caveat is the requirement for installation by qualified personnel due to its critical safety function. Key features include a specific temperature switch range, robust construction, and compatibility with 12V systems.
| Model Part Number | 6ZT 007 800-011 |
|---|---|
| Brand | Hella |
This Hella Radiator Fan Temperature Switch activates between 67°C and 82°C.
It is designed for use with standard 12V automotive electrical systems.
A 29mm spanner is required for installation.
It means the electrical circuit is open (not conducting) at normal operating temperatures. When the coolant reaches the activation temperature, the switch closes the circuit, allowing power to flow to the fan.
While the physical installation might be manageable, the product information states that installation by qualified personnel is required due to its critical role in engine cooling safety.
The thread size is M 22 x 1,5, and it uses a blade terminal plug type.
Yes, this part contains Lead (SVHC: 7439-92-1).
Verify the thread size (M 22 x 1,5), system voltage (12V), and compare the listed OEM and Interchange Part Numbers (e.g., 0242.12, 6ZT 007 800-011) with your vehicle's specifications before purchasing.
Check electrical connections to the switch. Verify the engine is reaching the activation temperature (67°C-82°C). Test the switch's continuity when hot. If the switch is faulty, replace it.
The switch may be stuck in the closed position or the engine is genuinely overheating. Check coolant levels and flow. If the fan operates correctly when the engine is very hot but stays on, the switch may need replacement.
Ensure the switch is properly tightened (using a 29mm spanner). Check the sealing surface on the radiator/engine block for damage. The switch seal may be compromised and require replacement.
Verify the fan is engaging at the correct temperature. Check the radiator fins for blockages. Ensure the thermostat is functioning correctly and coolant levels are adequate. If other components are fine, the temperature switch may be failing to activate the fan at the right time.
Setup:
Compatibility:
*Always double-check part numbers and measurements against your vehicle's specific requirements before purchasing.* Installation by qualified personnel is required.
Care:
This is a sealed unit designed for long-term operation within the cooling system. No regular maintenance or user-added care is typically required. Ensure the electrical connection remains clean and free from corrosion. In the event of leaks, inspect the sealing surface and retorque if necessary, or replace the switch if damaged.
