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The Davies Craig Digital Water Pump Controller is designed to work with any of our Davies Craig Electric Coolant Pump (sold separately). The controller senses engine temperature and automatically adjusts the rate of coolant flow to maintain the temperature you set, even after engine shut-down.* Choose one of five different "target" temperatures: 75°, 80°, 85°, 90°, or 95° C (167°, 176°, 185°. 194°, or 203° F).
The pump will cycle on and off at half-speed until the temperature gets within 5 degrees of the target. At that point the pump will run constantly, increasing speed until the target is reached and the pump is running at full speed. When the engine is shut down, "Over-Run" mode takes over and runs the pump for 2 minutes, or until the temperature is 5 degrees below the target.*
Kit includes controller unit with status and temperature LEDs, wiring harness, and 1/4 NPT coolant temperature sensor. 12 volt operation.
* Note: Battery kill switch (if equipped) must be left on for over-run mode to operate.