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4l80 internal harness

erasedhammer

Active member
So turns out my internal harness for my 4l80 is flooded and needs to be replaced .

Hummerpartsguy has one but is charging 200 for it, practically highway robbery.
Amazon and other retailers have a similar looking harness that says it's for a 4l80e transmission and only for $50!!!

Can anyone confirm that the harnesses sold on Amazon and other sites fit the Humvee?
 

Wire Fox

Well-known member
So turns out my internal harness for my 4l80 is flooded and needs to be replaced .

Hummerpartsguy has one but is charging 200 for it, practically highway robbery.
Amazon and other retailers have a similar looking harness that says it's for a 4l80e transmission and only for $50!!!

Can anyone confirm that the harnesses sold on Amazon and other sites fit the Humvee?
I can't speak for quality, but those Rostra harnesses should fit just fine. They're made for ALL 4L80E transmissions beyond a certain early model year. If you have the coolant lines that are spacer farther apart, you can guarantee that it will work out fine.
 

Action

Well-known member
There should be one big connector and 6 smaller one. I do not see any loose wires in the parts manual.
 

Wire Fox

Well-known member
That amazon link shows the big connector and 6 smaller connectors?
I'm not 100% sure it's correct, but you're looking at the exact same harness on Amazon that I decided I'd be buying if my trans turned out to need one. So, I supposed you can say I'm confident enough that I'd have chosen to spend my money on it. Perhaps that's 99%?
 

erasedhammer

Active member
I'm not 100% sure it's correct, but you're looking at the exact same harness on Amazon that I decided I'd be buying if my trans turned out to need one. So, I supposed you can say I'm confident enough that I'd have chosen to spend my money on it. Perhaps that's 99%?
Sounds good enough for me.
 
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