The New OEM Ford 3L3Z-6564-A Rocker Arm Assembly is a high-quality replacement part specifically designed for Ford Super Duty trucks from 2017 to 2019. Made by the original manufacturer, Ford, this rocker arm assembly ensures a perfect fit and optimal performance. With the OE/OEM part number 3L3Z-6564-A, this product is guaranteed to meet the standards of quality and durability that Ford owners expect. This rocker arm assembly is a reliable and essential component for maintaining the engine efficiency and power output of your Ford Super Duty.