BD Diesel Positive Air Shutdown - Ford 2020 F-Series SuperDuty 6.7LBrand BD Diesel Part Number 1036757 Category Engine Components Positive Air Shutdown Condition Brand New Original Manufacturer Packaging Like a fire extinguisher in your house, or an earthquake kit, it's always better to be prepared. Although rare, Diesel Engine Runaway is caused when external hydrocarbons are drawn into the engine and can cause over speeding and catastrophic engine failure. Life, limb and your vehicle are put in jeopardy. BD Diesel