Cummins X15 SCR 2022-2024: OEM 5418501

Engine-Matched NOx Control for Cummins X15 Engines (2022–2024)

What is it?
The Cummins X15 SCR (Selective Catalytic Reduction) assembly with OEM part number 5418501 is a critical emissions aftertreatment module designed for Cummins X15 diesel engines manufactured between 2022 and 2024. Working in tandem with Diesel Exhaust Fluid (DEF), this component helps convert nitrogen oxides (NOx) in the exhaust into nitrogen and water before the gases exit the system, supporting regulated exhaust behavior.

Why choose this SCR Assembly?
This SCR unit is engineered to Cummins’ original specifications for the X15 platform, ensuring proper fitment and dependable interaction with DEF metering systems, emissions sensors, and engine control electronics. Over time, SCR modules can lose efficiency due to normal use or contamination, which can reduce NOx conversion effectiveness and lead to emissions warnings or uneven aftertreatment response. Installing the correct OEM-specified assembly helps maintain coordinated exhaust treatment and more consistent exhaust chemistry.

Key Benefits
✅ Designed specifically for Cummins X15 aftertreatment systems (2022–2024)
✅ Helps support consistent NOx conversion with DEF chemistry
✅ Promotes coordinated operation with related emissions components
✅ Direct-fit replacement — no modifications required
✅ Built for heavy-duty exhaust environments

Applications
This SCR assembly is suitable for medium- and heavy-duty trucks and commercial vehicles equipped with Cummins X15 engines manufactured between 2022 and 2024. It’s commonly found in long-haul tractors, regional transport rigs, vocational trucks, and other commercial platforms where emissions control and regulatory compliance are essential.

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

Final Thoughts
If your Cummins X15-powered vehicle is showing NOx-related alerts, inconsistent emissions readings, or uneven aftertreatment performance, replacing the SCR assembly with the correct OEM-specified part can help restore smoother emissions control and steadier system behavior. The Cummins X15 SCR (OEM 5418501) plays an important role in managing regulated exhaust chemistry and supporting dependable operation across varied duty cycles.