BD Diesel Positive Air Shutdown - Generic 4.0in

When you're working in environments where a diesel engine runaway is a serious risk, like mining or oil refineries, having a reliable emergency shutdown system is critical. This Positive Air Shutdown (PAS) kit from BD Diesel is designed to cut off the air supply to the engine, stopping combustion quickly and safely. It's like having a fire extinguisher for your engine, ready for those rare but dangerous situations where external hydrocarbons could cause over-speeding and catastrophic failure.

BD Diesel uses a straightforward butterfly valve design that fits inline in the air intake system. When activated by its heavy-duty electrical solenoid, it trips a locked safety cam to shut down the engine within seconds. The kit is built with aluminum and stainless steel components, along with weatherproof electrical connectors, to resist corrosion in tough conditions. Installation is made easier with unique bead boot locks, meaning you won't need to weld anything to secure the intake boots.

This kit includes automatic engine over-speed electronics and, for some vehicles, CAC pipes. It's a well-built system that's smaller and has fewer parts than many competing units, making it a solid choice for critical applications where engine safety is paramount.