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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 | #73,235 in Automotive ( See Top 100 in Automotive ) #50 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) |
| 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 |
| 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. |
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