ACDelco Gold K060930HD Heavy Duty V-Ribbed Serpentine Belt

** Wrong size belt ** Rated 5-stars due to apparent quality of belt and ease of return through Prime. Sorry for the length of the post for something I returned prior to installation, but hopefully you can learn from my mistake prior to purchase: I only returned the item due to it being the wrong size (slightly too big) for my engine. This particular serpentine belt “would be” the one for my 2004 Silverado 1500 Z71 vehicle, if it had the larger sized alternator (which I do not have). Didn’t find this out until removal of the old belt which, thankfully, I removed in-tact, versus just cutting it. Recommend you do similar, if you are unsure which alternator you have. I stretched the old belt out alongside this new one and noticed the new one was slightly larger. That caught my eye immediately as I was expecting the new belt to be slightly smaller (not as stretched out), if anything. Took the new belt to AutoZone and they verified it was the belt for the bigger alternator, which is a little deeper when viewed from the side. (There’s a black spacer located in between the front and back case halves of the bigger model when viewing the alternator from the side. That’s the apparent dead giveaway for identifying which alternator you have). The bigger alternator must have a slightly larger pulley which accounts for the slightly larger belt. The Amazon search/filter system said it “fit my vehicle” that I have added to my Amazon garage, without mention of two different sized alternators. Hope my experience saves you some time and inconvenience.

Perfect fit ‼️

When I bought my Suburban it had newish belts on it. They look ok. But driving 350 miles one way, I take no chances. So I bought spares.

Best belt i ever purchased

Works perfectly on my 2004 Chevy suburban 1500. Had to replace the water pump, so figured I'd replace the rollers and belt as well . The squeak that had been happening for years was instantly solved. Looks and functions perfectly. Shipping was fast as well.

Amazon will not let you review this product and you can’t say where it’s made or who makes it for ACDelco! I have had 3 reviews declined and there was not one untrue thing in them! Buy the Gates!!!! Cheaper and it’s the same belt!

Heavy duty belt for my Yukon with a 160 amp alternator

I purchased the first one for my truck at the recommendation of my mechanic brother. True to his recommendation, there is zero belt squeal on my 6.0 LS motor, at every rpm. What an improvement over stock. I’m so impressed, I bought another one for a backup.

Quality rebranded Gates belt. Good value when I purchased it.

worked great on my chevy 6L

Fit my 03 lq4 swapped into my jeep

The delivery is on time. It is very quiet belt. No noise.

Worked great. Nice and quiet again. Expecting it to last sometime. If not I’ll update my review but so far so good!