The Derale 16739 is a premium single stage electric fan control kit that switches up to two cooling fans on and off based on coolant temperature. It turns the fans on at a preset 180°F and off at 165°F, and is rated for 25 amps maximum continuous draw through a heavy-duty 40/60 amp relay harness. Instead of a radiator fin probe, it uses a 3/8" NPT thread-in probe that threads into a water jacket port for direct coolant sensing, and it includes an A/C override circuit.
Specifications:
- Type: premium single stage electric fan controller
- Turn-on temperature: 180°F (preset)
- Turn-off temperature: 165°F (preset)
- Amp rating: 25 A maximum continuous
- Relay: heavy-duty 40/60 amp relay harness
- Probe: 3/8" NPT thread-in water jacket probe
- Controls: up to 2 fans
- Included: thread-in probe, relay wire harness, connectors, A/C override
- Part number: 16739
FAQ
What does the Derale 16739 controller do?
It turns up to two cooling fans on at 180°F and off at 165°F based on coolant temperature.
What type of probe does it use?
It uses a 3/8" NPT thread-in probe that threads into a water jacket port.
What is the amp rating?
It handles up to 25 amps continuous through a heavy-duty 40/60 amp relay harness.
Does it have an A/C override?
Yes, it includes an A/C override circuit.
