Silverado, Sierra 2500 HD. Single alternator. Silverado, Sierra 3500 HD. Dual alternator. Repair noisy idler pulley bearing. Cancellation Policy. We cannot take back installed or tried parts. We cannot take back used parts.
NEW OEM Genuine GM Belt Idler Pulley 12703922
Genuine GM Belt Idler Pulley 12703922
Genuine GM Serpentine Idler Pulley 10100791
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