ACDelco 12670574 GM Original Equipment Drive Belt Tensioner Assembly

The ACDelco 12670574 is a GM Original Equipment drive belt tensioner assembly designed to maintain proper tension on your vehicle's serpentine belt. This spring-loaded pulley assembly is engineered to GM's rigorous standards and provides the same performance, durability, and service life as the original factory component.

Key Features:

• Spring-loaded pulley design maintains correct belt tension automatically
• High-quality bearings resist dirt and salt contamination
• GM-recommended replacement for original equipment
• Designed and validated specifically for GM vehicles including Chevrolet, GMC, and Cadillac models
• Helps maintain proper function of belt-driven accessories

This genuine GM part ensures optimal performance of your vehicle's accessory drive system. Proper belt tension is critical for reliable operation of the alternator, power steering pump, air conditioning compressor, and other belt-driven components. Regular inspection and replacement of worn tensioners helps prevent belt slippage, premature belt wear, and accessory system failures.