

⚙️ Keep your drive smooth with GM’s precision tensioner – because your ride deserves the best!
The GM Genuine Parts 12670574 Drive Belt Tensioner is a spring-loaded pulley assembly engineered and tested to meet strict GM OE standards. Designed for Chevrolet, Buick, GMC, and Cadillac vehicles, it ensures optimal serpentine belt tension for reliable engine performance. Manufactured by ACDelco, this direct-fit part offers durability and seamless installation, backed by General Motors’ trusted quality assurance.





| Manufacturer | ACDelco |
| Brand | GM GENUINE PARTS |
| Model | Tensioner Asm-Drv Belt |
| Item Weight | 2.14 pounds |
| Product Dimensions | 5 x 9 x 3 inches |
| Item model number | 12670574 |
| Exterior | Machined |
| Manufacturer Part Number | 12670574 |
| OEM Part Number | 12670574 |
C**Y
This worked great
Worked very well
A**K
Replacement on 2014 Silverado
Used a replacement on an 2014 5.3L silverado. Easy installation. Works just like the factory original. Is a direct replacement based on chevy parts.
J**R
OEM quality
Great OEM product to replace the OEM failing
R**.
GM Belt Tensioner
Perfect fit for my 2016 GMC Sierra. Easy install.
J**D
Producto original
Funciona perfectamente
J**R
Exact replacing part
Perfect replacement for my 2015 Tahoe. Easy to install. Took less than 5 min. Exact fit. Got rid of a slight noise the old one made.
G**E
Works as intended
Easy install. 2015 GMC Yukon XL Denali 6.2L.
J**R
It came way too late
I bought an alternator and they suggested that I should get a belt and tensioner with the alternator, so I did and the alternator came in great time but a month later I got the rest of the order.The mechanic put in the alternator and I didn’t have the others to install so I’m sending them back.The alternator was fantastic I’m very pleased with it and the time it was delivered.
Trustpilot
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