BD DIESEL 1036732 POSITIVE AIR SHUT-OFF GENERIC 3.5IN INTAKE PIPING C/W ELECTRONICS

Product Description

The BD DIESEL 1036732 Positive Air Shut-Off system is a universal emergency engine shutdown solution designed to cut off intake air supply and safely stop the engine in over-speed or runaway conditions. Engine runaway can occur when external hydrocarbons are drawn into a diesel’s intake, leading to over-speeding and catastrophic engine failure. This system helps protect life and equipment by electrically closing the intake air path when activated.

BD Diesel 1036732, positive air shut-off system, diesel engine runaway protection, universal 3.5in intake PAS, emergency air cutoff valve, heavy duty intake safety

Designed around a 3.5-inch inline butterfly valve, this unit includes electronic control hardware, a heavy duty electrical solenoid, and a locking safety cam that ensures the valve remains securely closed once tripped. Aluminum and stainless components with weatherproof electrical connectors help resist corrosion, while bead boot locks simplify installation without the need for welding.

Fitment

• Universal — fits most 3.5-inch intake systems
• Designed for emergency engine shutdown applications across diesel platforms

Fitment Note: This is a universal Positive Air Shut-Off system intended for use with 3.5-inch intake piping. Ensure correct diameter and electronics compatibility before ordering.

Cross-Reference / Compatible BD DIESEL Products

• BD DIESEL 1036733 POSITIVE AIR SHUT-OFF – GENERIC 4.0IN
• BD DIESEL 1036730 POSITIVE AIR SHUT-OFF – GENERIC 3.0IN
• BD DIESEL 1036732-M POSITIVE AIR SHUT-OFF (MANUAL CONTROLLED) – GENERIC 3.5IN

FAQ

What does the Positive Air Shut-Off system do?

This device cuts off intake air supply to the engine, allowing safe emergency shutdown in conditions such as diesel engine runaway.

Why use a PAS system?

In rare runaway scenarios, fuel cannot be stopped through the throttle alone. The PAS system interrupts air supply—the essential component for combustion—stopping the engine safely.

Is installation difficult?

Installation generally requires routing the valve into a 3.5-inch intake line and connecting the control electronics. Basic mechanical skill and electrical wiring knowledge are recommended.

Specifications for BD DIESEL PRODUCTS 1036732