Cummins B6.7 SCR 2022-2024: OEM 5418580

Engine-Matched NOx Control for Cummins B6.7 Engines (2022–2024)

What is it?
The Cummins B6.7 SCR (Selective Catalytic Reduction) assembly with OEM part number 5418580 is an emissions aftertreatment component designed for Cummins B6.7 diesel engines built from 2022 through 2024. Working in conjunction with Diesel Exhaust Fluid (DEF), this unit helps convert nitrogen oxides (NOx) in the exhaust into nitrogen and water before the gases exit the system, contributing to regulated emissions control.

Why choose this SCR Assembly?
This SCR module is engineered to meet Cummins’ original specifications for the B6.7 platform, ensuring correct fit and dependable interaction with DEF metering systems, sensor networks, and engine control modules. When SCR components lose effectiveness over time, NOx conversion performance can diminish and lead to emissions alerts or irregular aftertreatment behavior. Choosing the correct OEM-specified unit helps maintain balanced emissions management and consistent exhaust processing.

Key Benefits
✅ Built specifically for Cummins B6.7 aftertreatment systems (2022–2024)
✅ Supports dependable NOx conversion via DEF chemistry
✅ Helps sustain coordinated operation with related emissions components
✅ Direct-fit replacement — no adjustments required
✅ Designed for demanding exhaust environments and duty cycles

Applications
This SCR assembly is suitable for medium- and heavy-duty vehicles powered by Cummins B6.7 engines manufactured between 2022 and 2024. It’s commonly utilized in delivery trucks, vocational fleets, regional transport rigs, and other commercial platforms where consistent emissions control and regulatory compliance are key operational demands.

Installation Notes
Before servicing, ensure the exhaust and aftertreatment system has fully cooled. Remove the existing SCR module and inspect adjacent DEF lines, sensors, and mounting brackets for wear or contamination. Install the replacement assembly using proper seals and fasteners to secure a tight, leak-free fit. After installation, clear any stored system codes and verify correct SCR operation using diagnostic tools.

Final Thoughts
If your Cummins B6.7-equipped vehicle is experiencing uneven NOx readings, emissions warnings, or inconsistent aftertreatment behavior, replacing the SCR module with the correct OEM-specified part can help restore smoother emissions control. The Cummins B6.7 SCR (OEM 5418580) plays a key role in managing regulated exhaust chemistry and supporting dependable vehicle performance across diverse duty cycles.