With a full line of over 500 tensioners globally, you can count on Gates to supply premium quality belt tensioners for your power transmission system. Our engineers and product experts ensure every tensioner we manufacture is built to rigid tolerances and specifications that guarantee fit, form and function for your application.

The accessory belt drive tensioner automatically adjusts tension in the Micro-V® belt to ensure proper function and output of accessory components, dampens peak loads during engine acceleration and deceleration, and ensures your belts and engine perform when your vehicle needs them most.

For standard & micro v-belt types, determine the proper tension for manually tensioned belts with Gates Belt Tension Calculator.

Find the right Gates DriveAlign 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 carries Gates products. Choose an item or category to find the specific products you know and trust.

These self-adjusting tensioners are spring-loaded to maintain constant pressure on a belt in a drive system, eliminating the need to make manual adjustments. They include the pulley which …

Gates® PowerGrip™ Timing Tensioners are engineered with OE-quality or OE-exact fit and performance, designed and tested to increase belt life, maintain optimal tension, and eliminate the need for tensioning operation during installation.

Gates DriveAlign® Tensioners have patented labyrinth seals that keep the grime out, and round spring coils to ensure consistent long-lasting tension on the belt. Gates Micro-V® Belts are engineered to power your progress and enhance vehicle performance.

Ensure your vehicle is Ready for the Road Ahead™ with optimized drive belt tension, with the Gates FleetRunner® Heavy Duty Automatic Belt Tensioner.