AUTOSAVER88 10" 12V Universal Electric Radiator Cooling Fan Push Pull Slim Mounting Kit 1250 CFM （Diameter 10.75" Depth 2.56")

The directions are woefully inadequate on this subject. So are many who respond that all you need to do is reverse the polarity of the power, imply that reversing the blade direction solves the problem. That will reverse the direction, but the curved design of the fan blades are designed to provide nominal airflow (i.e. efficient and proper strength perpendicular to the fan blade plane). If you want a pusher, do both...or you will wonder why the fan doesn't seem effective. Aviation gives us the example. See the propellers of the A400 or C-130J aircraft. The swept blade edge must bite the wind, not dump it. If the fan blade is not flopped, upon reversing power polarity, the blades of the fan will be going the opposite direction from which they are designed.

I like the product how ever it would be nice to have a more detailed description on the product. There are zero instructions that come with it and the connector had to be cut off and retro fitted. I did not like the flimsy mounting system and build my own steel straps to attach to. Also I did not like the three screws that hold the motor onto the plastic and again pulled them and replaced them with some higher quality stainless non rusting screws and raised the mount 1/8 to allow the motor more airflow to cool the motor itself. The nut that holds the fan in place could have been a locking spring clip for easy removal of the fan for motor replacement when the time comes to replace brushes and clean the inner workings. After I addressed the minor personal issues I installed a multi relay and switch. The relay was 8 dollars and the switch I had laying around. Easy to wire up but the clip had to be cut off and new ends installed. I have run this fan for 5 minutes while doing a break in on a Chevy 350 and had to shut it down do to a failure in the engine so I do not have a history on the fan long time running. I do have a friend that go the same fan and runs it daily with no problems .I have no amp draw information as none was provided so I just ran it on a 30 amp relay switch with a 20 amp main supply fuse. Ran fine. This fan label says 12v-120watts. Figure the amp draw from there. Keep in mind that amp draw spikes at initial start up then comes down as the speed goes to max rpm. Would have been nice to of had some literature concerning this needed information.To calculate the amperage draw from your device, divide the wattage rating by the voltage from your power source. 120/12=10amps

I have 2 of these fans running in my 2005 Dodge Ram 1500 with 5.7 Hemi. I built a fan shroud for them to fit on, and I have no problems keeping that big engine cool, even in the hot Phoenix heat. My only problem with them is that the wires that plug into the electric motor tend to fall out after a year or so, which has caused me to replace these fans every so often. Other than that, they work great for me.

As you can see in the picture this fan is more than 3" thick despite being advertised as 2.56".Update: they edited the description, but there is still a part on the page which states: 2.56 x 16.73 x 16.73 in

I found this in Amazon Warehouse for $18, bought it to use with a dedicated 12v solar panel I had, to suck hot air out of my attic througha gable vent. I used a jig saw to cut a circle to the correct opening in some 1/4 plywood, using the fan cowling as a guide. Screwed it to the plywood, painted it all to match my house, and screwed the plywood to cover the gable vent. Now whenever the sun is shining here in AZ, the fan starts running and ventilates my attic. The fan performs flawlessly and has no prblems with the varying voltages givien to it directly from the solar panel.

I got a pair of the 12" fans and thought I would post some specs. The radius of the central hub is about 2.5" and the radius of the blades is 5.6". I ran a bench test using a half-charged 12V SLA battery. After the start up surge, they were using 6.52 amps at 12.1V or 79W. The startup amps was about 8. I measured air speed at the grill with a fairly accurate Kestrel 2500 anemometer. It was 14.5 mph max at the axial edge and 11 mph at the shroud edge. Not a perfect way to measure air volume, but that comes to a surface area of 0.56 ft2 and an ave airspeed of 1100 fpm, for a volume of 616 cfm, far below the claimed 1730 cfm. Also purchased one of the ASIN B00H29LLWS 12" fans with a lower claimed air volume (1130 cfm). It looked nearly identical to this one, except for the straight blades. That product used 4.8 amps at 12.25V (59W) and had a measured air volume estimate of 542 cfm. My method mostly does not account for the grills, which would lower air volume, so I suspect I over-estimated true air volume. Maybe their volume estimates are done at 24V. Other than the overstated volume claim, this is a decent product. I haven't put it in service, which for me is a specialized non-automotive use. The fan is quiet.

Worked great for what I wanted it for. Fit my small radiator out of a Chevy C10 just right. Had 18 inches to work with and the 16 inch fan with mounting taps was almost perfect to get as much airflow as possible over my radiator. Used as a pusher fan. Instructions where ok and easy to follow even the wire diagram. Highly suggest paying attention to them if you plan to swap from puller to pusher. Only thing I did not like was the mounting disc style zip locks. They did not hild when utilized with provided springs next time i would not use springs. Had to add extra zip ties as support.

this is a quality part,,, i am a professional shop and this unit went into a 1974 ford bronco add on ac unit,,, this fan cools the condenser for low speed driving in Hawaii,, i can tell you now it is warm here and very humid,,, this fan performs flawlessly, and is a quality part,,,, i will buy again next time i need one,,, thanks again,,, brad