GM Genuine Parts 22781131 Alternator: Reliable and High-Quality Replacement Component Review

I went through 3 remanufactured alternators in 23 days before deciding to buy a new ACDelco alternator. It was only a little more expensive, but it WORKS!

What an amazing genuine part without the motherboard! Aftermarket alternators suck! Being able to buy an original alternator at the discounted price of an aftermarket alternator made my month better!

Perfect, used 3 weeks on my 06" LBZ One of the components I like original parts for. If it still works after 2 years it's worth it. The elastic cord that the Keeping tension on the strap made it easy to install (the strap was fairly new).

I have a 2007 GMC 2500HD with dual alternators, Allison, crew seats, 4x4. OK, let me come back. The dealer removed certain equipment from the truck before selling it to me and at one point had TWO alternators. Now he only has one. It works fine until the alternator bearing is dead. Revain says this will NOT fit my truck but it does! Revain is reasonably priced and available now. Delivery two days? Yes I am! The alternator fits, albeit tightly, and all the connectors and wires go where they're…

Rebuilt a 5.3 in my Chevy Express and with 200k on the van realized I should just do a new alternator now. I came with the standard 105 amp which was good for 200k but wanted to upgrade to the largest OEM option available. It was attached directly with no modifications, I just had to use a longer strap for it. This is the strongest belt you can get. Although the pulleys are the same size on the 105 and 145 you will need a longer belt as the alternator is physically larger and sits higher on the