The new Auto Cool 200 is now in production!
Designed for Diesel motor homes, semi-trucks, and large
motor cooling requirements.
Watch this YouTube video that compares brand X to our
Auto Cool 200 Pulse Width Modulated controller.
Caution: language may offend some viewers in this video!






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The Auto Cool 200 for diesel radiator temperature control:
* One year warranty covers parts, labor or exchange.
* Pulse Width Modulated fan RPM radiator temperature control.
* Soft Start limits inrush DC motor starting current.
* Save energy and fuel with this "Electronic Fan Clutch."
* Radiator cool down timer - 1 minute after the ignition is switched off.
* Fail Safe will put fans into high RPM with small switch on dash board.
* This is your electronic fan clutch system.
* 1/4 inch brass bolts for FAN and GROUND terminals.
* A/C fan RPM preset with small pot on side of controller.
* Radiator temperature control will over ride the A/C fan speed.
* Use all standard sensors from the Auto Cool Guy.
* Rated at 200 Amps.
* Powers one or more fans to 200 amps.
* Fused at 250 Amps.
* Internal jumper between FAN A and FAN B.
* Made from .125 inch aluminum plate top and bottom.
* Made with brass and stainless hardware for rust prevention and long life.
* Case size: 8 x 5.5 x 2.4 inches.
* Weight: 2.4 pounds.
* Cover is powder coated.