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acdelco gm original equipment 12580773 drive belt idler pulley: reliable and sleek black design logo

ACDelco GM Original Equipment 12580773 Drive Belt Idler Pulley: Reliable and Sleek Black Design Review

6

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Very good

Revainrating 4.5 out of 5  
Rating 
4.3
🔧 Car Belts, Hoses & Pulleys, 🏎️ Performance Car Parts & Accessories

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Description of ACDelco GM Original Equipment 12580773 Drive Belt Idler Pulley: Reliable and Sleek Black Design

Repair noisy idler pulley bearing. GM-recommended replacement part for your GM vehicle’s original factory component. Offering the quality, reliability, and durability of GM OE. Manufactured to GM OE specification for fit, form, and function.

Reviews

Global ratings 6
  • 5
    5
  • 4
    0
  • 3
    0
  • 2
    0
  • 1
    1

Type of review

Revainrating 5 out of 5

The 1999 Tahoe is perfect!

Perfect replacement for the squeaky OEM pulley that was on my 1999 Tahoe. Some local auto parts stores tried to sell me a pulley without the bolt installed, but I decided to go online and buy this.

Pros
  • Heavy Duty Finish
Cons
  • Almost OK

Revainrating 5 out of 5

Direct replacement good for idler pulley

So far so good with the new idler pulley. The old one came off with no problems, but this one fit. No problems starting and driving. A clear difference between the old pulley and this new one.

Pros
  • Great price
Cons
  • Compatibility

Revainrating 5 out of 5

Good replacement. for belts, hoses and pulleys

is almost identical to the factory part. The only difference is that the GM part number is stamped on the metal while this is printed on the metal. Installation was very quick and easy. The old pulley lasted 18 years, look at this one.

Pros
  • Very good price
Cons
  • Modern

Revainrating 1 out of 5

Fits my 1999 Chevy Blazer

This pulley was just what I needed for my 1999 Chevy Blazer 4.3 V6. My old one was worn out and squeaked quite loudly. It was very easy to assemble and fit perfectly. Everything you need was there. Seems a bit pricey for what it is, but it was double the price of Revain at my local auto parts stores. AC Delco quality!

Pros
  • Confident
Cons
  • Will write later

Revainrating 5 out of 5

Literally worse than a worn part. Wouldn't recommend

Can't believe this is an OEM part. The washers are plastic, the bearing clearance is ridiculous. See above for a comparison of a worn pulley with bearings removed which will perform better than a new part. I felt it was unsafe for my car and returned it immediately.

Pros
  • Great product
Cons
  • Good but not great

I had a noise under the hood and noticed that this bearing can wobble a little when the engine is off. So easy to replace but before you do anything make a map of the belt route. Old warehouse removed. China! I don't know how it got on my truck. Either way I installed this bearing in 5 minutes, the verified belt stayed on all the pulleys. I started my truck and couldn't believe how quiet it was. If this camp fails down the road, you'll be sitting in deep kefir. Get this quality bearing while…

Pros
  • Durable Test Results
Cons
  • I am silent