ACDelco Gold Accessory Drive Belt Tensioner Assemblies are a high quality alternative to Original Equipment (OE) parts. When you hear annoying belt squeal under the hood or experience battery charging issues caused by a slipping alternator belt, restoring proper tension is essential for reliable vehicle operation. These tensioner assemblies automatically adjust to take up belt slack as the engine runs, ensuring the serpentine belts stay tight against all pulleys to drive critical components like the water pump, air conditioning compressor, and power steering. By utilizing a robust torsion spring and an advanced damping mechanism, they reduce vibration and provide maximum stability even under the heavy strain of towing or daily commuting. The springs even help to mitigate belt wear and flex-fatigue. Engineered with low-friction bearings and protective seals that stop internal contamination, these tensioners are rigorously validated to deliver consistent power transfer while extending the overall lifespan of your drive belt and pulleys. ACDelco Gold parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors.

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• Reliable power transfer is delivered to critical engine components
• Automatic adjustment of belt slack happens as the engine runs
• Supports the proper function of the alternator and power steering
• Ensures smooth and quiet operation of vital engine accessories
• During daily commuting this assembly provides consistent belt tension
• Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
• Premium aftermarket replacement part
• Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models