Mishimoto MMFAN-CNTL-U18NPT Adjustable Radiator Fan Controller Kit, Includes NPT Temperature Sensor, Black

Alittle expensive but works fantastic and take the headache out of wiring

Been running in Arizona on a 20amp single fan and its performed 100% accurately. Its dead band and set on is always spot on. Make sure a few things people. A. Mount it in a high and dry place... This is the first cause of these things to fail! B. Mount it near the fuse panel where its not being subjected to heat over 150 constantly. This is the 2nd thing to cause failures. Follow those two rules and itll never die.

I'd vouch for a 5. Mishimoto has been solid and clean cut in my experience. Of the available options I saw looking for fan controllers, this set appeared to be the most complete and straight-forward. Haven't done an install yet, will update, but first! I got this controller to help me with an old GM 3.1 60° V6. Not sure if this was an issue in later variants, but in my vehicle the fan dont kick on til the temp gauge hits around 220-230. Not *cool*. Secondary fan only operates when the air conditioner is running. Since this system is stand-alone I can leave the stock sensors in and just rewire the fans to this controller, make use of both of them. Hiccup though. 5/8 NPT thread for the temp sender on this engine, and for the life of me I couldn't find a way to adapt from this 3/8 up. Mishimoto just so happens to provide an adapter (also on amazon, separately, but only ~$25) which works with this controller's threaded fitting (didnt dig the idea of pushing one between radiator fins.) Its an inline nipple type fitting that gets cut into the radiator's inlet hose. So, its really getting me out of a pickle here. Really makes this option pretty universal when paired.

Worked fantastic for about 2 days. Then it wont turn on unless you hold the controller in a particular angle and wiggle the wires around, then it only works for about 20 minutes before shutting off again. If you use the bypass wire it runs fine but then is obviously constantly on.

Good product overall. It works, with exception that it is always burning through fuses (I went up to 50a and still blows them every other month or so). My determination is that the components are about a 5 out of 10 due to having a “cheaply made” quality to them (relay, connectors, etc). Overall it still function as should, minus blowing the fuses. I just keep a pack in the glove compartment and replace fuses when needed

Just installed it last night 11.1.22, appears to work ok for now, only time will tell how long it lasts or how well it performs. It was a bit pricey for what it is considering other brands were half its price but i already had a 1/8 npt thread hole so this was convenient, while other brands use 3/8 npt or 1/4 npt sensors ....

I purchased 2 controllers for 2 separate fans to turn on at different temperatures. Works great! Would have been great if the npt sensor would have fit my Mishimoto radiator with out an adapter. For now, 1 wedge temp sensor is working for both controllers.

Easy to install everything worked perfect.

Quality product. Easily fitted and connected. Adjustment of temperature is gradual and accurate. highly recommended.

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L'installation n'a pas posé de soucis. Le réglage de la température est simple mais le potentiomètre est sensible. Je recommande le produit.

Excelente producto y muy bueno para configurar el arranque de los ventiladores

Work as described and solved my over cold/heat issue with the car engine. Easy to install and control Worth the value