I have been searching and can't seem to find solid information on the wiring of the electric fans for a 2500 6.0 truck. I have a 2006 model year and am wondering what harness will fit from what truck. I already have the e fans and it is turned on in my PCM. I just want to make sure I get the right harness.

Thanks for your help

 

I have GM OE fans in my 2005 2500HD 6.0L. I used Blackbear's fan harness. It was good quality and easy plug-n-play.

 

I have the LS1fans harness on my 05 and then the oem on my 04. Oem is way cleaner and suffers no relay issues. All you need for a harness is any 05 to 07 e fan equipped trucks front harness. Its gm part number 15912597. You still need the connector and some wire that goes to your pcm connectors though. The connector is a GT 150 and you can get it from waytech. I went new as I didn't want some junkyard mess. The only junkyard thing I did was the little pcm harness I just mentioned as I had a junk harness to steal it from.

One of these days I am selling my 05s harness and switching it to the oem one.

 

I used an OEM fan harness from a Efan truck. Just stripped out what wasn't needed and installed like factory.

 

I used the Nelson performance harness on my install of LS1 fans. Temps stay good and the install was pretty staight forward. The harness came with the "suffering relays" and I have had no issue yet, though the install was only two weeks ago. Good luck with whatever you choose.

 

i just put efans in mine. took the efans, radiator, and harness from an 05 auction car from my work. made it all nice and neat and added wire loom, looks completely stock.