Engine Timing IdlerA timing belt idler is a pulley that helps route the timing belt in its correct position. Depending on the size and length of the belt and engine, there can be one or more idler pulleys within a timing system. Specifically designed for the Belt IdlerPulley, Belt IdlerRecommended that the belt tensioner(s) and belt idler(s) also be replaced when the belt is replaced as these components play a vital role in system stability and accurate timing; Each part is extensively tested for function, fitment, and durability to ensure optimal performance; Meet or exceed OEM performance requirements; CAD designed and manufactured using premium materials; Refer to our online catalog for detailed application-specific informationBelt Idler