Get Engine Shutdown components to help protect your 2004.5-2005 Chevy/GMC 6.6L LLY Duramax from diesel engine runaway. Some industries including mining, oil refinery, forestry, mobile welding, septic removal, and refueling require vehicles to have an emergency engine shutdown in place. Emergency shutdown systems are intended to cut the air intake supply in order to safely shut down the engine. Find Engine Shutdown products at XDP from brands such as Pacbrake and BD-Power.