I have a OEM E-fan harness and relay pack that I carefully removed from a 2005 Sierra. This harness is not the complete core support harness. Its just the wiring for the fans, which was picked apart from the core support harness. No wires are cut or butchered in any way. I even have the plug with the two pins that go into the ECM plugs.

 

Do you still have this harness?

 

Actually, I sold it around 3:00 today. It didn't last long at all.

 

Bump.

 

you shouldnt have a problem selling it, ive had a few people trying to buy mine.I will let them know you have one for sale. GLWS

 

To the top.

 

Other than the fans is this all that's needed to install e-fans on my 00?

 

Yes, unless you have the smaller 28" radiator in which case you need to upgrade to the 34" radiator. Also, on a 99-02 truck you have to modify the harness slightly by adding another relay to change the the polarity of the AC compressor trigger. Plus you will need to have your tuner turn on the pins in the PCM if you have not already done so.
I have more detailed info and pictures in this write up here: https://www.performancetrucks.net/fo...-chevy-484892/

 

Bump.

 

Bump.