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12-1/4" Wide x 12-5/8" tall x 3-1/8" deep, high-output, ultra-quiet, electric fan assembly will boost your vehicle's fuel economy and increase both torque and horsepower.
Features:
Specs:
Whereas belt-driven fans use up power from the engine to turn, electric fans do not, thus removing any unnecessary load and increasing both fuel economy and horsepower. In addition, you do not have to worry about an electric fan's slowing down at low RPM, as many belt-driven fans do, so you are guaranteed sufficient airflow regardless of the vehicle speed.
While this assembly is intended for primary cooling and should, therefore, provide enough CFM to replace your vehicle's factory fan, you will still need to determine the CFM requirements for your engine before making your purchase. And remember, engines that have been modified or vehicles often used for towing may require additional CFM. There is no limit to the number of fans you can install, as long they all fit appropriately and are mounted on the same side of your radiator so that they do not cancel each other out.
Two types of turn-on sources are available for this fan. The Derale Lighted On/Off Switch for Electric Fans (D16740) allows for manual control of your fan so that you can choose when to turn it on and off. Thermostatic controls, on the other hand, send a signal to the fan, directing it to shut off when fluid temperatures reach an appropriate level, thus saving power. Once the temperature climbs again and additional cooling is needed, the fan is automatically turned back on. Thermostat switches can be single-stage with pre-set temperatures - D16735, D16738, D16739, D16720 and D16721 - or adjustable - D16778 and D16779.
Average Customer Rating: 4.7 out of 5 stars (6 Customer Reviews)
12-1/4" Wide x 12-5/8" tall x 3-1/8" deep, high-output, ultra-quiet, electric fan assembly will boost your vehicle's fuel economy and increase both torque and horsepower.
I put two of these in front of the radiator in my suburban. They were great at keeping the engine much cooler especially while I am towing or sitting in traffic. They were easy to install and connect. I connected them together with 3 relays to switch them between either series or parallel connection, depending on what power output I wanted. In series, they would run at half speed whenever the air conditioning compressor was running, which worked great for keeping airflow over the air conditioning condenser and the engine cool while idling in the hot sun. I added a radiator temperature probe to the radiator and the oil, so when either got to 180° it would switch to parallel mode and run the fans at high-speed. The reason for not running I'm in high-speed all the time was for two reasons, first because they are two fans are a little loud if the vehicle is not moving, second the power draw of the two fans was a little too much for an idling engine, especially with a trailer plugged in drawing power also.
Worked exactly how I wanted it to thank s!!
The fans seam to be exactly what I needed .the mounting ties did't work very well. The keeper didn't hold very well
This is the second set of fans that I have had.
Now I have DERALE FANS for both of my trucks.
I love them!
These fans are made in America that means a lot to me.service was great thanks to Cathy.
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