2021 Mack Pinnacle Series Engine Pulleys
- Dorman HD Solutions®Idler PulleyMack Pinnacle Series 2021, Idler Pulley by Dorman HD Solutions®. This replacement accessory drive belt idler pulley has been engineered to match the function and performance of the original pulley on select vehicle years, makes and...Direct replacement - this accessory drive belt idler pulley matches the fit and function of the original equipment pulley on specified vehiclesRestores performance - fixes a failed, squealing or groaning noise from a worn idler pulley$129.53