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⚙️ Keep your GM running like new — tension perfected, performance guaranteed!
The GM Genuine Parts 12670574 Drive Belt Tensioner is a spring-loaded pulley assembly designed to maintain optimal tension on your vehicle’s serpentine belt. Engineered and rigorously tested by GM engineers, it ensures precise fit and reliable performance for Chevrolet, Buick, GMC, and Cadillac vehicles. Backed by a 24-month unlimited mile warranty, this OE part delivers durability and peace of mind for your automotive maintenance needs.
| Asin | B01M1B18MY |
| Belt Style | serpentine |
| Best Sellers Rank | #52,292 in Automotive (See Top 100 in Automotive) #38 in Automotive Replacement Belt Tensioners |
| Brand Name | GM GENUINE PARTS |
| Color | Black |
| Compatible Devices | General Motors vehicles |
| Customer Reviews | 4.8 4.8 out of 5 stars (229) 4.8 out of 5 stars |
| Global Trade Identification Number | 00808709557715 |
| Included Components | Auto part |
| Item Type Name | Drive Belt Tensioner Assembly |
| Item Weight | 2.1 pounds |
| Manufacturer | ACDelco |
| Material Type | Rubber |
| Part Number | 12670574 |
| Style Number | 12670574 |
| Unit Count | 1 Count |
| Upc | 808709557715 |
| 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. |
User
2015 GMC Sierra 5.3l
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.
User
Good GM Part Good Price
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 👍👍!
User
Oem..is the way!
Oem is the way to go. Price was fair, fit perfect like it should with new and oem. Motor noise from bearings in the tensioner is gone now.
User
Perfect replacement
Perfect replacement for 2018 GMC Sierra 5.3. Identical to the original.
User
Very good product, 2015 Chevy Tahoe
2015 Chevy Tahoe, very good product, working for 6 months and it's perfect, I recommend it.
User
Gm Part
Happy to see GM part number on box.
User
Original GM part.
Exact GM quality replacement belt tensioner.
User
Acceso
Excelente
User
Perfecto
Tal cual para la Suburban 2016
User
A very good product.
Exact fit for my engine. No problem installing. Arrived early.
Trustpilot
2 weeks ago
3 days ago