On a drive belt system, the tensioner pulley is spring loaded to maintain proper tension and alignment of the serpentine belt. The idler pulley is bolted on the engine and serves as a guide to wrap the timing belt in the correct direction.

Shop O'Reilly Auto Parts to find the belt tensioners, pulleys, brackets, and other tensioner and pulley system parts for your vehicle. Complete belt and tensioner kits are also available for specific makes and models to provide everything you need for your service or maintenance.

Jan 21, 2025 · Start the engine and listen for unusual noises like squealing, banging, or a dull roar from the belt area. These can indicate issues with the tensioner pulley bearing or improper belt tension. Perform a Visual Inspection: Turn off the engine and examine the serpentine belt.

Designed for use on automobiles and light duty trucks as manual tensioning, automatic belt tensioning and idler pulleys. Additional hardware may be included with idler pulleys to make installation easier. Shop for Duralast Accessory Drive Belt Tensioner Pulley 231015 with confidence at AutoZone.com. Parts are just part of what we do.

Heavy duty steel pulley with close tolerance ball bearing pocket and electro-deposited coating for superior corrosion resistance

Find the right Murray Pulleys and Tensioners Drive Belt Tensioner for your vehicle at O'Reilly Auto Parts. Place your order online and pick it up at your local store for free.

O'Reilly Auto Parts has the parts and accessories, tools, and the knowledge you may need to repair your vehicle the right way. Shop O'Reilly Auto Parts online.

ACDelco Gold (Professional) Accessory Drive Belt Tensioner Pulleys are the high quality alternative to Original Equipment (OE) parts. These pulleys are needed to help maintain correct drive belt position and tension.