Shop Engine Shutdown components for your 2017-2022 Ford 6.7L Powerstroke to avoid diesel engine runaway. An emergency shutdown system cuts the air supply to the intake in order to safely shut down your diesel engine. Some industries including mining, oil refinery, forestry, mobile welding, septic removal, and refueling require vehicles to have an emergency engine shutdown in place. Find Engine Shutdown products at XDP from brands such as Pacbrake and BD-Power.