\
Contact DARRYL Auto Cool Guy: 562-367-3225 autocoolguy@yahoo.com
PLEASE NO EMAILS TO TROUBLE SHOOT A PROBLEM, CALL INSTEAD!
NO ENDLESS EMAILS PLEASE!
AUTO COOL CONTOLS RADIATOR OUTFLOW TEMPERATURE - YOUR THERMOSTAT CONTROLS ENGINE TEMPERTURE~
THE HF CONTROLLERS WILL POWER BRUSH OR BRUSHLESS FANS. AVOID USING A LOW FREQUENCY CONTROLLER ON A BRUSHLESS FAN = IT WILL VIBRATE AT LOW RPM,
THE HF COTROLLERS HAVE SOFT START, AC FAN SPEED CONTROL, AND A COOL DOWN TIMER. RADIATOR OUTFLOW TEMP IS CONTRLLED WITH FAN RPM. ALL OUR SENSOR WILL WORK WITH ANY OF OUR CONTROLLERS, NO YOUR ECU! HF CONTROLLERS RUN AT 7000 CYCLES PER SECONDS.

Darryl,
I just wanted to let you know that the HF-125 I ordered from you this summer has been absolutely great. As I said, I haul a lot, and big trailers, with my Powerstroke, and now that I'm running your controller, I'm finally getting the benefits of converting it to electric fans. All these years hauling trailers and I've been religious watching temps - I still am, but I can tell you it doesn't matter now if it is 40*f or 100*f, loaded, unloaded, headwind, no wind, 50mph or 80mph, the temperatures are stable all the time. I could not be happier with your controller. In fact, I'm so happy I just ordered a second one for one of my other trucks that I'm converting to electric fans now that I have found the proper way to control them.
Thank you so much for making a quality product.
Joanna Byrne
Lubbock, Texaseasy.


T CONTROLLER. ANY QUESTIONS, GIVE US A CALL!

The Ice Box from the Auto Cool Guy
$75.00
Some cars have variable DC voltage to control the AC temperature.
The ICE BOX changes this to a solid 12 volts for your Auto Cool controller.
Made in the USA by the Auto Cool Guy
Greg installed the Auto Cool HF-125 in his classic 1966 Mustang.
"Installation was easy and it works like a charm…
Here is the short version of the video showing before and after." Thanks much from The Auto Cool Guy!



I completed the install of the HF-125. Started the car and all seems to
be working fine in the shop. I haven't taken the car out for a drive
yet. Attached are a few photos showing the install and some
modifications I made. I fabricated covers for the top and bottom and ran
the wiring through the side. Once I test drive the car I will let you
know what improvement it makes. It already seems to be cooling better. I
ran it quite a while in the shop and it never went over about 178
degrees. I'll call after the test drive.

Auto Cool 200 NOW IN BLACK CASE
Our most powerful PWM controller, rated at 200 amps. It has the soft
start, fail safe and the cool down
timer. Base 8 x 5.5 inches


Auto Cool DX-150
Our new push button 150 amp PWM radiator temperature controller with 10 led to show percent of PWM. It has soft start, cool down timer and fail safe. Base size 6 x 7 inches.
Auto Cool 55
Our 55 amp PWM controller with soft start, fail safe and the cool down timer.
Designed or 6 and 4 cylinder vehicles not large V8 engines,
Please watch this video before you purchase that brand X controller from that "racing company." It
will save you a lot of hassle, time and money.
The Ice Box

This small device will keep your A/C fan speed constant with your A/C valve control voltage going up and down. It will give you a constant +12 volt output to your controller's A/C input. A blue LED shows DC output. Designed for most European and BMW type cars.
Case size: 3 X 3 X 1.75 inches.
Mike in Brewster, MA is putting our Auto Cool III in this super Mopar to control radiator temperature. He has become a repeat customer.
Watch this video on our Auto Cool III controller. We have sold hundreds and hundreds of these around the world. We have them in Blue and Black, let us know the color you want.

HF-125 INSTALLED
"The unit is perfect. Finally got it all buttoned up and it is keeping things nice and cool. Figured I’d send over a pic of the install - took a bit of fab work to get all the new electrical stuff nicely positioned for service. Thanks again for the great product and the excellent customer service!" BASE: 5 X 6 INCHES
Aaron Stone 4-6-2020


The fan specs are, Derale 18217, 17” High Output pusher or puller without changing anything. I only seem to hear the BUZZ when it is shutting down or when it is going slow. Before I got the AC 85 I had wired low speed with one relay to key and hi speed with another relay and a T stat so it didn’t draw much on the relays but it ran from the time I started tell I shut it down. Yours is much more precise and reliable. I will try to do a video this weekend.
Thanks again
From the desk of
Chris Mueller
