The BD Diesel manual Positive Air Shutdown (PAS) for Chevy 2004.5–2010 LLY/LBZ/LMM is a manually controlled inline butterfly valve system that cuts the intake air to safely stop the engine in emergency conditions. The kit includes the valve, boots, wiring harness, bead ring, drill template, clamps and module; components are aluminum and stainless with weatherproof connectors, and the bead lock design secures boots without welding for easier installation.
BD Diesel Positive Air Shutdown (Manual Controlled) - Chevy 2004.5-2010 LLY/LBZ/LMM