Cummins B6.7 DPF Filter 2018-2021: OEM 5579375

Clean Exhaust Flow Starts with the Right DPF for Cummins B6.7 (2018–2021)

What is it?
The Cummins B6.7 Diesel Particulate Filter, listed under OEM 5579375, is an aftertreatment component designed for Cummins B6.7 engines built between 2018 and 2021. Its role within the exhaust system is to capture and store soot generated during combustion, allowing exhaust gases to move forward with reduced particulate output.

Why choose this DPF Filter?
This DPF is built to align with Cummins’ original design parameters for the B6.7 platform. Proper fitment matters in aftertreatment systems, as restriction or mismatch can affect exhaust balance and system behavior. A correctly specified DPF helps maintain orderly exhaust flow and supports smoother coordination across emissions components.

Key Benefits
✅ Engine-matched design for Cummins B6.7 applications
✅ Captures particulate matter before exhaust exits the system
✅ Helps limit excessive exhaust restriction
✅ Direct-fit configuration with no alterations needed
✅ Built to handle continuous commercial-duty operation

Applications
This DPF filter is used across a range of medium- and heavy-duty vehicles powered by Cummins B6.7 engines from the 2018–2021 model years. Common applications include delivery trucks, municipal fleets, vocational equipment, and regional transport vehicles where emissions control is part of everyday operation.

Installation Notes
Always allow the exhaust system to cool completely before removal. After taking out the existing filter, inspect nearby sensors, clamps, and exhaust connections for buildup or wear. Install the replacement DPF using new gaskets and clamps to ensure proper sealing. Once installed, clear any stored system codes and confirm normal exhaust behavior through diagnostics.

Final Thoughts
When soot accumulation or exhaust restriction begins to affect aftertreatment consistency, replacing the DPF with the correct OEM-specified unit can help restore stable exhaust conditioning. The Cummins B6.7 DPF Filter (OEM 5579375) plays an essential role in managing particulate output and supporting dependable vehicle operation.