Make Swapping Your Idler Pulley Belt a Breeze

Lisle Serpentine Belt Tools are available with a standard or ratcheting head to remove the tension on serpentine belts with a spring-loaded idler pulley. Once the ratcheting head reaches the max travel point, a simple click of the lever locks the mechanism into place. All sets include an extension for hard-to-reach idler pulleys and the most common socket sizes that fit most applications.