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⚙️ Keep your engine running like new — because every detail counts!
The GM Genuine Parts 12670574 Drive Belt Tensioner is a precision-engineered, spring-loaded pulley designed to maintain optimal tension on your vehicle’s serpentine belt. Manufactured and rigorously tested by General Motors, this OE-quality part ensures reliable performance, easy installation, and quieter engine operation, making it the trusted choice for GM vehicle owners seeking durability and factory-level standards.
| ASIN | B01M1B18MY |
| Belt Style | serpentine |
| Best Sellers Rank | #80,907 in Automotive ( See Top 100 in Automotive ) #16 in Automotive Timing Belt Tensioners |
| Brand Name | GM GENUINE PARTS |
| Color | Black |
| Compatible Devices | Automotive |
| Customer Reviews | 4.8 4.8 out of 5 stars (210) |
| Global Trade Identification Number | 00808709557715 |
| Included Components | Auto part |
| Item Type Name | Drive Belt Tensioner Assembly |
| Item Weight | 2.14 Pounds |
| Manufacturer | ACDELCO |
| Material Type | Plastic, Rubber |
| UPC | 808709557715 |
| Unit Count | 1 Count |
| Warranty Description | 24 Month / Unlimited Mile Limited Warranty on parts sold on or after 04/01/18. (Parts Only) Please see ACDelco.com for more details. |
J**S
Tal cual para la Suburban 2016
C**R
Exact OEM replacement. Replaced all 3 belts on my 2015 GMC Sierra 5.3l along with a new tensioner. Is a new tensioner necessary? Probably not at ~87kmi but it’s one of those things where while you’re already in there, and it’s easy and cheap to do, just do it.
P**T
Exact fit for my engine. No problem installing. Arrived early.
A**R
Exact GM quality replacement belt tensioner.
A**E
Good GM Part, great price discounted for packaging damage, went on easy, quieted front of motor down with this and new serpentine. Went on my 2015 Silverado 1500 5.3 all stock with 130K miles on the original parts. All good 👍👍!
Trustpilot
2 weeks ago
2 weeks ago