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⚙️ Keep your drive belt in perfect alignment — because your truck deserves the gold standard!
The ACDelco Gold 38008 Flanged Idler Pulley is a premium aftermarket replacement designed to maintain optimal drive belt alignment and routing. Manufactured from durable alloy steel with stainless steel hardware, it supports up to 5000 lbs tensile strength and fits most General Motors trucks and other makes. Backed by a limited lifetime warranty, this pulley ensures reliable, long-lasting performance that meets OEM standards.
| ASIN | B000C9L00S |
| Best Sellers Rank | #1,195,457 in Automotive ( See Top 100 in Automotive ) #1,202 in Automotive Replacement Idler Pulleys |
| Brand | ACDelco |
| Brand Name | ACDelco |
| Color | Black |
| Compatible with Vehicle Type | Truck |
| Customer Reviews | 4.6 out of 5 stars 363 Reviews |
| Fastener Material | Stainless Steel |
| Global Trade Identification Number | 00021625283852 |
| Hardware Material | Stainless Steel |
| Included Components | Idler Pulley |
| Item Type Name | Idler Pulley |
| Item Weight | 3.52 ounces |
| Load Capacity | 5000 Pounds |
| Manufacturer | ACDelco |
| Manufacturer Part Number | 88909589 |
| Manufacturer Warranty Description | Limited Lifetime Warranty (Parts Only). Please see ACDelco.com for more details. |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Model Number | 38008 |
| Number of Pieces | 1 |
| Tensile Strength | 5000 Pounds |
| UPC | 021625283852 |
| Unit Count | 1.0 Count |
| Vehicle Service Type | Truck |
D**L
perfect fit and function
You have to use the old spacers that are locked onto the pulley with a push on nut. I drove the bolt out of the nut far enough to get a hold on it to turn it off, Then drove it on to the bolt after replacing the pulley. You may want to have an extra 7/6 push on nut in case you destroy the old one getting it off.
J**P
Good product
It’s a pulley what can you say it goes around
W**B
2001 LS1 Trans Am
Replaced the pulley instead of the whole tensioner assembly on my 01 T/A. This pulley fits right, runs quiet, and works good so far.....FYI- I found the outer shoulders are not quite as thick as my original, which makes this pulley slightly narrower. Not an issue since it does not affect alignment.
D**.
Fast shipping & fit right
Pulley saved me $,time & having to be w/o a vehicle for days. Runs smooth & no noise & hope it does for many yrs ahead.
C**C
Not an exact replacement, but it is an acceptable replacement
I drive an 07 Ford Fusion V6 and this pulley is slightly different then the one it replaced. The important dimensions are the same so it's an acceptable replacement, but I thought I'd mention that there are a few slight, non-important differences.
G**E
Right part for the job.
Perfect fit for my 2001 GMC 2500HD 8.1 w/130a alternator. The tensioners on all the GM truck/cars/SUV's tend to be a failure item, and most of the time it's the bearings in the pulley instead of the spring in the tensioner. An $11 pulley - or a $70 tensioner....touch choice.
M**Z
Buen material
El producto funciona muy bien
T**T
Plastic
Working for now but oem is metal and this is plastic. Keeping the old one close by just in case.
Trustpilot
3 weeks ago
5 days ago