Shop Engine Shutdown components for your 1989-1993 Dodge 5.9L Diesel to avoid diesel engine runaway. Emergency shutdown systems are designed to cut air intake supply to the engine for a quick and safe shutdown. Many industries like mining, oil refinery, forestry, mobile welding, septic removal and refueling require diesel-powered vehicles to have an emergency engine shutdown in place. Get the Engine Shutdown products you need at XDP from brands like Pacbrake and BD-Power.