Cummins B6.7, L9 DPF 2018-2022: OEM 5579371

Reliable Filtration for Modern Engines: Cummins B6.7 / L9 DPF (2018–2022, OEM 5579371)

What is it?
The Cummins B6.7 / L9 DPF (2018–2022, OEM 5579371) is a Diesel Particulate Filter engineered for Cummins’ B6.7 and L9 engines manufactured during 2018 to 2022. Its function is to trap soot and fine particulate matter from exhaust gases before they exit into the atmosphere, helping maintain emission compliance and reducing wear on downstream components.

Why Choose the Cummins B6.7 / L9 DPF (2018–2022, OEM 5579371)?
This DPF is designed to match original equipment standards—mounting geometry, sensor integration, and exhaust flow paths align with factory specifications. By opting for a filter that mirrors OEM design, you reduce installation discrepancies, maintain exhaust system harmony, and support more consistent filtration performance across the engine’s life.

Key Benefits
✅ Exact OEM Fitment: Aligns with factory flanges, sensors, and gas flow layout
✅ Robust Construction: Built to withstand thermal stress, vibration, and exhaust exposure
✅ Efficient Particulate Capture: Traps soot and fine particles to reduce emissions
✅ Stable Regeneration: Designed for reliable regeneration cycles with fewer faults
✅ System Preservation: Cleaner exhaust helps extend life of sensors, catalytic systems, and piping

Applications
The Cummins B6.7 / L9 DPF (2018–2022, OEM 5579371) is appropriate for medium- to heavy-duty trucks and commercial vehicles powered by these engine types. It is especially useful for fleets and transport operations that require reliable emissions control with minimal downtime.

Installation Notes
This DPF is intended for direct replacement without the need for major modifications. However, professional installation is recommended to ensure proper sealing of gaskets, correct clamp torque, and secure sensor wiring. After installation, clear any diagnostic trouble codes and verify that the engine control unit properly recognizes the new unit.

Final Thoughts
A modern engine deserves modern filtration. The Cummins B6.7 / L9 DPF (2018–2022, OEM 5579371) delivers an OEM-aligned solution that restores clean exhaust filtration and helps sustain dependable, compliant engine operation mile after mile.