Cummins B6.7 SCR 2022-2024: OEM 5418529

Purpose-Built Emissions Control Unit for Cummins B6.7 Engines (2022–2024)

What is it?
The Cummins B6.7 SCR (Selective Catalytic Reduction) assembly, referenced by OEM part number 5418529, is a calibrated emissions aftertreatment component for Cummins B6.7 diesel engines produced from 2022 to 2024. Working together with Diesel Exhaust Fluid (DEF), this unit enables a chemical reaction that transforms nitrogen oxides (NOx) in the exhaust into harmless nitrogen and water before the gases exit the aftertreatment system.

Why choose this SCR Assembly?
Engine emissions systems rely on precise coordination between hardware and control logic. This SCR module is manufactured to meet Cummins’ original design specifications for the B6.7 platform, ensuring accurate fitment and seamless interaction with DEF dosing components, exhaust sensors, and the engine control module. When SCR components wear or lose effectiveness, NOx conversion efficiency can drop and trigger system alerts. Using the correct OEM-specified unit helps maintain consistent emissions control and orderly aftertreatment operation.

Key Benefits
✅ Engine-matched design for Cummins B6.7 SCR systems (2022–2024)
✅ Supports consistent nitrogen oxide conversion via DEF chemistry
✅ Helps maintain coordinated operation with related aftertreatment components
✅ Direct-fit replacement — no modifications needed
✅ Built for demanding exhaust conditions and extended duty cycles

Applications
This SCR assembly is ideal for medium- and heavy-duty trucks and commercial vehicles powered by Cummins B6.7 engines manufactured between 2022 and 2024. Its typical use cases include delivery fleets, vocational work vehicles, regional transport trucks, and other commercial platforms where controlled emissions behavior and regulatory compliance are essential.

Installation Notes
Before servicing, allow the exhaust and aftertreatment system to cool fully. Remove the existing SCR module and inspect nearby DEF lines, sensors, and mounting brackets for soot buildup, wear, or damage. Install the replacement SCR assembly using proper seals and fasteners to ensure a secure and leak-free fit. After installation, clear any stored fault codes and verify correct system response with diagnostic tools.

Final Thoughts
If your Cummins B6.7-equipped vehicle is showing NOx-related alerts, irregular exhaust behavior, or uneven emissions control, replacing the SCR assembly with the correct OEM-specified unit can help restore coordinated aftertreatment performance. The Cummins B6.7 SCR (OEM 5418529) plays a central role in managing regulated exhaust chemistry and supporting dependable vehicle operation through demanding duty cycles.