Upgraded Gray/Black Dual Radiator Fan by Derale Performance for Enhanced Output - Model 16831 Review

Cool my car outside even with the air on Cheap fans suck. There was 1 set fan motor which fell apart inside and shorted out and was only used for a week! Derale is still worth the money. Will be updated if this changes.

Worked great on a 1968 Mustang with a 347CID 430HP with a 390 heatsink which fitted perfectly and the fans left clearance for the water pump pulley. The A/C runs better than ever and the engine runs at 190F with an ambient temperature of 100. I've tried three other fan combinations and this is the best so far.

Good quality. I had to get creative as I didn't have room for fans between the heatsink and fan belts and my current setup was just letting too much air through. I managed to attach it to the radiator bracket and make a seal between it and the radiator. Turn on the motors and provide enough airflow to drop the temperature from 210 to 190 on a 90 degree day.

Perfect fit for my 65 K10 Chevy. The only downside was the mount, although it's universal I don't think it's that versatile. Luckily my radiator had mounting tabs that I riveted the block to. They fit more than perfectly, draw a lot of air and seem to do what they're supposed to. The only issue I had was changing the wire colors on a fan so it worked in reverse. So I just swapped the cables.