Dorman 621-410 Engine Cooling Fan Assembly Compatible with Select Dodge / Ram Models

I bought this to modify my 2016 RAM 1500 Bighorn with the 5.7L Hemi V8. From the factory the V8 trucks come with two fans, one mechanical, one electrical. The electrical one is practically useless as it just sits in a crappy thin plastic wire frame. The mechanical one does all the real cooling because it has a shroud. On the 2012-2016 trucks you can delete the mechanical fan and replace the electric with this unit and it'll keep temps in check on the V8s, even while towing heavy! The removed parasitic loss of the mechanical fan even boosts MPGs a touch (1-3 depending). To anyone looking to do this mod, be advised, the only way this will work is either a. you pull the screw holding the connector loose and drop it down for the slack to connect it to the truck's harness or b. cut the truck's factory harness and extend the wires for the pigtail. Also do your research and verify that you're in the right year range as they updated the e-fan connector in the later year models of this generation, meaning this unit won't work for those trucks without additional modification.

Had to replace the water pump on my 5.7L Hemi so decided to drop the thermostat from 203 to 180 and delete the clutch fan. This fan is a direct fit on radiator and uses all the same mechanical clamps/bolt holes and lines up perfectly with the electrical connector as well as the top radiator hose connector. Super easy swap. The only recommendation would be to buy a piece of flat bar and drill a couple holes to hold the water pump pulley in place while you break the mechanical fan loose. If you’ve got some miles on your motor, trying to just apply additional tension to the belt is not strong enough to break it loose. This fan performs very well. Being from Texas I was nervous that it would not keep up in the summer. Hottest this motor has gotten is 198F with an ambient air temp of 100+F for weeks. Any power gains from losing the mechanical fans’ parasitic drag are negligible. Gas mileage is slightly less since the swap. I swapped my thermostat at the same time so I’m thinking the lower temp is responsible for that but will review again once I swap the thermostat up to 190F. Couple of points about the truck. 5” lifted 4x4 Outdoorsman. This fan delete wouldn’t be recommended if your wheel a lot. My truck never sees much off-road but pulls heavy trailers regularly and the fan keeps up well. Overall, I’m extremely pleased with the fan swap and now have a ridiculous amount of space in front of the motor!

Plug and play! 2017 Ram 1500 5.7L HEMI fits perfectly like from factory and I was able to delete my fan clutch and free up wear and tear on my water pump. I also kind of feel more throttle response? Overall great upgrade from the stock fan and fan clutch. The plug wires are a bit short but if you pull up on the harness and secure it with a zip tie, you won’t have to splice in longer cables.

Installed in 2016 Ram 1500 4WD Hemi. Poor packaging, came with one ear broken. Made a metal clamp to use with original securing bolt for the broken upper driver side ear. Eliminated the AC and clutch fans and was able to use the AC fan connector after cutting several harness securing ties and tape to free up enough length to reach the new fan connection. That was not easy but doable. Fan pulls a lot of air and should work to lower temps while towing. Also installed a Denale 15405 engine oil cooler available on Amazon.

It works as intended. I did a Efan conversion on my 2012 ram 1500 Hemi. It bolts right up. Just a FYI, on my 2012 i did not have to extend the oem fan harness👍🏻. 2013 and newer you have to. I gave it 4 stars since it arrived with a broken mounting tab but Amazon is sending me a replacement. Definitely cleans up the engine bay

I've been looking for a good quality cooling fan on a budget after my trucks fan stop working which caused my truck to overheat. This fan so far works great on my Ram 1500. It's keeping my trucks engine cool and has not overheated. It was easy to install and a great value. I recommend!

Installed in my 5.7 Hemi Ram to replace the factory clutch fan, works great and cost less than the A/C condenser fan that actually needed to be replaced, this fan eliminated the need for both. I have had it installed for about a year now, it fit like it was meant to go there from the factory and has been running strong ever since. Plenty of airflow to keep my HEMI cool during hot Texas summers. NOTE: If you are installing on a V8 truck expect to have to extend the wiring harness for the factory A/C condenser fan so it will plug into this fan, wire from the factory A/C fan and butt connectors can be used to accomplish this. PCM tuning isn't exactly required but is preferred for this install on a V8 truck, the fan will run off of the A/C condenser fan circuit which is programmed to turn the fan on with A/C demand or when coolant temp reaches 220F, tuning the PCM will allow you to lower the on/off setpoints making the fan come on at lower temperatures.

Installed this Dorman e-fan along with a 180 degree t-stat a few weeks ago and no problems. I have a custom tune from Greene Racing to control the new fan, which turns it on at 190 degrees and keeps it around 185 in 80 degree weather. The fan is a bit loud but that's because it moves a lot of air, eventually I'll get used to it and won't notice it anymore. Installing the e-fan itself was a breeze as it drops right into the factory e-fan's location brackets and bolt holes line right up, plus the electrical connector plugged right in without having to extend it. Removing the clutch fan was the hardest part, but I used some WD-40 and it eventually broke loose without a way to hold everything from rotating. As far as noticeable power increase/response I noticed some throttle response and little more power in the low rpm range but that is in combination with the new custom tune and new Magnaflow muffler, so I can't say how it'll effect a truck with stock tune. Plus I have a custom camshaft so it's hard to compare to a stock truck. But I will say it's worth it to get the extra room in the engine bay and lose that rotating mass.

Plug and play. Works very good. Well made.

As advertised. Worked perfectly as a plug and play for a 2013 Ram 1500 5.7 Hemi to delete the mechanical fan and smaller AC only e-fan. Have superchips tuner on tow tune. Have stock 203f thermostat. Comes on at 210f and brings down to 190f in about 30 seconds. With max AC on, kicks in at around 205f and takes down to 190f before turning off. Appears to have increased mpgs a little bit after getting rid of partially stuck on mechanical fan. Been on the truck for 1 day so far...

fit perfect in my 2016 ram 1500 sport, after install noticed a crack on the housing but doesnt seem to affect the fan

Had a crack at the bottom of the shroud amd after reading reviews seemed like no big deal so I installed it anyway and it works fine. Used on my 2021 Hemi Ram classic to delete engine mounted fan. Had to extend wiring harness but no big deal. I noticed quite a difference in how much smother the engine feels and the throttle response is abit better. it’s definitely a good mod if you have 45 minutes of spare time.

I did did a mechanical fan delete to my 2012 ram 1500. Box was a bit beat up when it arrived, but the fan was in good shape. Install of the fan only took 2 minutes after the original clutch fan, electric fan, and fan shroud was removed. Noticed a bit better fuel mileage an idle runs smoother without having the clutch fan cut in and out. When it turns on the heat just drops on the gauge. I recommend this conversion to any ram owner.