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⚙️ Keep your engine running like a pro with ACDelco Gold – the tensioner that never quits!
The ACDelco Gold 38158 Drive Belt Tensioner Assembly features a precision aluminum body with a black pulley, engineered to maintain perfect serpentine belt tension. Designed to meet or exceed OEM specifications, it fits General Motors vehicles and most other makes and models. Highly rated by over 2,500 users with a 4.6-star average, this premium replacement part offers quiet operation and is backed by a limited lifetime warranty, making it a smart, reliable upgrade for your vehicle’s accessory drive system.








| ASIN | B000C9PFJK |
| Belt Style | serpentine belt |
| Best Sellers Rank | #12,171 in Automotive ( See Top 100 in Automotive ) #3 in Automotive Replacement Belt Tensioners |
| Brand | ACDelco |
| Brand Name | ACDelco |
| Color | Aluminum w/ Black Pulley |
| Compatible Devices | Vehicles |
| Customer Reviews | 4.6 out of 5 stars 2,536 Reviews |
| Global Trade Identification Number | 00021625584454 |
| Included Components | Drive Belt Tensioner |
| Item Type Name | Drive Belt Tensioner |
| Item Weight | 1 Pounds |
| Manufacturer | ACDelco |
| Material | Aluminum |
| Material Type | Aluminum |
| Part Number | 88929140 |
| Style Number | 38158 |
| UPC | 021625584454 |
| Unit Count | 1.0 Count |
| Warranty Description | Limited Lifetime Warranty (Parts Only). Please see ACDelco.com for more details. |
T**G
Required
Good fit, good quality , quiet sound, and good value
K**I
Great replacement
Work perfectly for gmc 2001 1500
R**A
Perfect fit.
Perfect fit for my 2007 GMC Yukon Denali. Seems to have stopped my belt squeaking. Super easy to put on.
V**Z
Fits like OEM
Feels and looks like OEM. This item was a breeze to install and had a much smoother operation than my old one that i had been neglecting to change. It gives the engine a cleaner look and eliminated the slight squeal that the old one was starting to make.
B**S
Exact fit,good tension
Great price,the pulley feels kinda cheap,but so far so good,no squeaks.
C**L
The best replacement for the best price.
Solid, quiet and quality. True ACDelco part for half the price.
T**G
Works okay. 07/08 5.3 Vortec Silverado
07/08 5.3 Vortec, Silverado. Easy fast install. Feels heavy duty. OEM at a fair price. So far okay. Pulley is identical in material as the original when vehicle was purchased new. It is non metallic but very sturdy. The old pulley still looked brand new.
S**M
OEM all the way!
This belt tensioner is currently installed and running. It has not failed like the knock-off which lasted less than a year. If OEM parts are available do hesitate to buy them, even if the cost a little more - you won't be sorry.
J**E
Good product
Worked great and arrived fast
A**M
رائع
منتج ممتاز
S**E
It's not the right one for a ls1 gen 3
It didn't line up n I ran out of time to return it
S**L
Good fit
Works well but not cheap. One day delivery which was great and needed.
N**I
المنتج اصلي من جي ام
اصلي بلد الصتع كندا جمس سييرا 2006
Trustpilot
3 weeks ago
1 week ago