Engine Kits

With 3/8" NPT Thread-In Probe
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Derale Cooling Products

With 3/8" NPT Thread-In Probe

Part #: 16739
List Price: $82.38
Our Price: $32.95
You Save: $49.43

Availability: In Stock

With 3/8" NPT Thread-In Probe

The single stage electric fan thermostat will control up to two electric fans with a maximum amperage draw of 25 continuous amps. This unit includes a 30-amp relay,  wiring harness and an air-conditioning override circuit to activate the fan whenever the AC is on. On vehicles without AC, this lead can be used as a manual override.


  • 25 AMP Maximum Capacity
  • 180°F preset turn-on temperature
  • Turn-off temperature is preset at 165°F
  • 3/8" NPT thread-in probe
  • Includes Heavy duty 40/60 amp relay harness
  • A/C override circuit
Air Conditioning Relay Included No
Brand Derale Cooling Products
Fan Off Temperature (F) 170 degrees F
Fan On Temperature (F) 180 degrees F
Fan Quantity Single/Dual
Manual Override Switch Included No
Part Type Fan Switches, Thermal
Product Line Derale Cooling Products Single Stage Fan Controllers with Radiator Probes
Quantity Sold as a kit.
Relay Included Yes
Sending Unit Included Yes
Sending Unit Style Thread-in
Sending Unit Thread Size 3/8-18 NPT
Thermal Switch Style Non-adjustable fan control kit
Wiring Harness Included Yes