Alternator wiring harness upgrade
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CF Junior Member
Joined: Feb 2021
Posts: 79
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Alternator wiring harness upgrade
Considering upgrading from the 105A alternator wiring harness to a 145A alternator.
I understand you need to upgrade the harness to GM# 84090494: https://chevroletforum.com/forum/exp...52/#post491773
My question- how do I know if my harness was already upgraded or not?
There were two fusible links labeled 8.5mm, and the 3rd cable (not a fusible link) measured 10.9mm diameter.
I understand you need to upgrade the harness to GM# 84090494: https://chevroletforum.com/forum/exp...52/#post491773
My question- how do I know if my harness was already upgraded or not?
There were two fusible links labeled 8.5mm, and the 3rd cable (not a fusible link) measured 10.9mm diameter.
Thread Starter
CF Junior Member
Joined: Feb 2021
Posts: 79
Likes: 11
With my VIN plugged in, it shows 84090494 as the cable. It says it replaces 15942156, 22777071. So I want to figure out which one I have first.
The link from my first post mentions this as well:
The link from my first post mentions this as well:
GM only lists this cable for all models now, it appears they have discontinued the smaller version that came on the van from the factory
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