



⚙️ Keep your drive smooth and tension tight—because your ride deserves the best!
The ACDelco 38158 Professional Automatic Belt Tensioner and Pulley Assembly is a premium aftermarket replacement part engineered from lightweight aluminum. It ensures precise serpentine belt tension, enhancing accessory drive system performance. Manufactured to meet strict General Motors OEM standards, it fits a wide range of GM vehicles and many other makes, offering a reliable, no-assembly-required upgrade backed by GM quality assurance.





| Brand | ACDelco | 
| Material | Aluminum | 
| Belt Style | serpentine belt | 
| Compatible Devices | Vehicles | 
| Item Weight | 1 Pounds | 
| Colour | Aluminum w/ Black Pulley | 
| Manufacturer | ACDelco | 
| Global Trade Identification Number | 00021625584454 | 
| UPC | 021625584454 | 
| Model | Drive Belt Tensioner | 
| Product Dimensions | 22.35 x 12.19 x 9.14 cm; 453.59 g | 
| Item model number | 38158 | 
| Exterior | Machined | 
| Manufacturer Part Number | 88929140 | 
| OEM Part Number | 88929140 | 
| Assembly Required | No | 
| Country of Origin | USA | 
| Item Weight | 454 g | 
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