SpinNice
TYF Newbie
- Joined
- Jan 1, 2018
- Posts
- 15
- Reaction score
- 5
Pm me please and let’s set up payment.Yes, still available.
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Pm me please and let’s set up payment.Yes, still available.

@ScottyBoy is the man!Here it is! @ScottyBoy did an amazing job! Very clean, great service and communication! I can’t wait until the fans and my hptuners shows up! To be continued..
View attachment 190051

Yes, still available.
Got any more of them?
At the moment no I do not. I grab these EVERY time I come across them though, even if they have minor damage that is easily repaired. I WILL update this thread when I come across another harness that I can refurbish and post up for sale. It might be a week or two, or it might be several months. It all depends on how long it takes for more 05-06 trucks to show up in the yards around here.
Got any more of them?
Is this plug and play for a 04 2500 Suburban 8.1 4l85e?I snagged another harness today. So if you want it, or if anyone else wants this sucker, it's up for grabs. First come first serve. These things go FAST!!
Probably would need to have the pcm flashed for the fans to turn on.Is this plug and play for a 04 2500 Suburban 8.1 4l85e?
I plan on getting the black bear tune; I already bought the AutoCal. I was hoping to find the correct fans for an 8.1 and do it all together.Probably would need to have the pcm flashed for the fans to turn on.
Is this plug and play for a 04 2500 Suburban 8.1 4l85e?
@JennaBear I have a question about the 8.1 engine. Does it use the same type of PCM as the 5.3 and 6.0 engines? What I'm basically asking is will an E-fan harness connect to the 8.1 engine wiring and fuse box just like it would on a 4.8/5.3/6.0 engine? You clarified that the radiator is physically larger, but now I'm wondering about the wiring.All depends on the fans being used. The 8.1L radiator is larger than the 6L.
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We did not deal with a factory fan break out on our 8.1L so I can't give any advice on that.@JennaBear I have a question about the 8.1 engine. Does it use the same type of PCM as the 5.3 and 6.0 engines? What I'm basically asking is will an E-fan harness connect to the 8.1 engine wiring and fuse box just like it would on a 4.8/5.3/6.0 engine? You clarified that the radiator is physically larger, but now I'm wondering about the wiring.
Well, I cannot say for SURE that the 05-06 OEM Electric fan harness will work with the 07 8.1liter fans. Although, I did some digging on Rockauto, and the pictures they have of the plug on the fans look just like the 05+ truck fans. I also looked up a "Radiator cooling fan pigtail" and the same wiring harness pigtail comes up that is used on the 05+ electric fans. So it appears that the plugs ARE the same. The one and only concern I have is how much current do those huge fans draw? I honestly have no idea if the harness I have is capable or not of running those monstrous fans. I know it handles the E-fans for the 34" radiator just fine. I just don't want to assure you that it will be fine when I honestly don't know. If those big fans use the same amount of current as the 34" fans, then I would think it will be perfectly fine. But if they do indeed draw MORE current, then you may need to make a custom harness with 80 amp relays and 10 gauge wire.Thanks for the help everyone. The 07 classic 2500 came with an 8.1 and has an option for electronic fans from the factory. Part number is (brand) 4 seasons 76016 or brand TYC 622210. I think I can make those work since I'll have to modify the shroud anyway . @ScottyBoy I will buy your harness if it works with either one of the fans listed above.