This is a solid, factory-style replacement pump built to bring your Cummins steering back to the way it should feel. PSC uses a larger ring and rotor design to move more fluid at lower RPMs, which makes a big difference when you're idling around a parking lot, easing a trailer into place, or working the truck around the farm.
The pump comes with the drive cog already pressed on, uses the factory pulley, and installs just like the OEM unit. Choose the version that matches your year range and brake system, and you're good to go.