Restore Clean Exhaust Performance with Cummins B6.7 & L9 DPF
What is it?
The Diesel Particulate Filter (DPF) for the Cummins B6.7 and L9 engines is a critical component of the aftertreatment system. It captures soot and fine particulates from exhaust gases, ensuring cleaner emissions and helping protect downstream components.
Why choose this DPF?
Designed specifically for the B6.7 and L9 engine platforms, this DPF provides the proper filtration and system flow your engine needs. A clogged or failing filter can lead to increased back-pressure, frequent regeneration cycles, reduced fuel efficiency, and fault codes. Choosing the correct replacement helps maintain efficient operation and system reliability.
Key Benefits
✅ Traps soot and fine particles to support clean exhaust output
✅ Enables stable regeneration and appropriate exhaust flow
✅ Helps reduce back-pressure and maintain engine efficiency
✅ Direct-fit design—no modifications required
✅ Built to withstand heavy-duty use and high-response conditions
Applications
Ideal for trucks and equipment powered by Cummins B6.7 or L9 engines, particularly in commercial, vocational, or industrial operations where emissions control and dependable performance are essential.
Installation Notes
Make sure the exhaust system has cooled before servicing. Check the DPF housing and connections for damage, soot buildup, or wear. Replace gaskets, clamps, and seals during installation. After the installation, clear any fault codes and verify regeneration cycles and exhaust flow through diagnostics.
Final Thoughts
If your B6.7 or L9 engine shows signs of increased cost of operation such as frequent regenerations, back-pressure warnings, or soot loading, replacing the DPF is the effective solution. With correct fitment and construction designed for duty use, this part helps keep your system running clean and reliable.