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Gates timing belt idler pulleys guide the timing belt along its specified path within the engine’s timing drive system. These application-specific replacement components are selected to match the original pulley’s mounting arrangement, dimensions, and belt contact surface. A smooth backside pulley runs against the back of the timing belt, so its design and installation position must match the requirements of the engine being serviced. Check the listed outside diameter, bore dimensions where available, and pulley width when identifying the correct replacement. During timing belt service, inspect the idler pulleys, tensioner, and belt together, and follow the vehicle manufacturer’s replacement intervals and installation procedures. Use the featured application as a reference alongside the complete vehicle fitment information, since one engine may use several different pulleys in separate positions. Included bolts, spacers, or other hardware are identified in the specifications when supplied in the product data.
