Accessory Drive Belt Tensioner Assembly; ACDelco GM Original Equipment Drive Belt Tensioner Assemblies are spring-loaded pulleys designed to draw tension on your vehicle's serpentine belt, and are GM-recommended replacements for your vehicle's original components. These original equipment drive belt tensioner assemblies have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

• Helps keep drive belt at correct tension to help maintain proper function
• GM-recommended replacement part for your GM vehicle's original factory component
• Offering the quality, reliability, and durability of GM OE
• Manufactured to GM OE specification for fit, form, and function