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 overspeeding and catastrophic engine failure. Life, limb and
your vehicle are put in jeopardy. BD Diesel Performance has you covered
should the worst happen with our Positive Air Shut-Off (PAS) by cutting the
intake air supply to the cylinders and safely shutting down the engine. The
Positive Air Shut-Off butterfly valve design simplifies the number of parts
and reduces the overall size as compared to competitive units and uses
aluminum and stainless components plus weatherproof electrical connectors to
prevent corrosion. Easy installation with bead boot locks – no need for
welding. Standard applications include over-speed electronics and CAC pipes
included for some vehicles.

Emergency Engine Shutdown
The most effective method to emergency shutdown engine is to cut the air
supply
Butterfly valve placed in-line in the air intake system
Heavy duty electrical solenoid trips a locked safety cam causing the engine
to shutdown within seconds
Unique locking lever holds valve
Unique bead lock keeps boots in place, no welding required!
Reduced overall size as compared to competitive units
Aluminum and stainless components plus weatherproof electrical connectors
to prevent corrosion
CAC pipes included for some vehicles
Automatic engine overspeed electronics