ACDelco Gold (Professional) Engine Timing Idlers are the high quality alternative to Original Equipment (OE) parts. An engine timing idler is a pulley that helps guide the timing belt into its correct position. Be sure to keep in mind that based on the size and length of the belt and engine, there may be one or more idler pulleys within a timing system. ACDelco Gold (Professional) parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional.

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• Responsible for controlling the operation of your vehicle's vital systems, which is essential to the performance of your vehicle
• Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
• Premium aftermarket replacement part
• Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models