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ACDelco GM Genuine Parts idler pulleys are a part of the accessory belt system on the front of the engine. These pulleys are GM recommended replacement parts for your vehicle's original component. Pulleys can be ribbed or smooth, contain a sealed ball bearing, and are used to divert the drive belt to the components, such as the alternator, water pump, or power steering pump. GM Genuine Parts idler pulleys have been manufactured to fit your GM vehicle, providing you with the same performance, durability, and service life you expect from General Motors.
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$4.99
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ACDelco GM Genuine Parts alternator pulleys are factory-recommended replacements, offering the same performance, durability, and service life you expect from a General Motors product. Your alternator converts mechanical energy to electrical energy with an alternating current, delivering power to headlights, electric steering, power windows, windshield wipers, heated seats, dashboard instruments, and radio—as well as charging your car battery while driving. Maintain your charging system; order the alternator pulley designed for your vehicle.
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$7.99
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