Cummins X15 SCR 2022-2024: OEM 5418634

Coordinated Emissions Treatment for Cummins X15 Platforms (2022–2024)

What is it?
The Cummins X15 SCR assembly, identified by OEM 5418634, is an emissions aftertreatment component used on Cummins X15 diesel engines produced between 2022 and 2024. As part of the selective catalytic reduction process, it works alongside Diesel Exhaust Fluid (DEF) to support the conversion of nitrogen oxides (NOx) into nitrogen and water before exhaust gases are released from the system.

Why choose this SCR Assembly?
Modern aftertreatment systems depend on components that are precisely matched to the engine platform. This SCR unit is manufactured to Cummins’ original specifications for the X15, ensuring correct fitment and reliable communication with DEF dosing equipment, exhaust sensors, and control modules. When SCR efficiency drops, emissions alerts or inconsistent exhaust behavior can follow. Using the correct OEM-specified assembly helps maintain steady system operation and predictable emissions handling.

Key Benefits
✅ Engine-matched design for Cummins X15 emissions systems
✅ Supports stable NOx processing through DEF interaction
✅ Helps maintain balanced coordination across aftertreatment components
✅ Direct-fit replacement with no modifications required
✅ Designed for sustained exposure to high exhaust temperatures

Applications
This SCR assembly is used on heavy-duty trucks and commercial vehicles equipped with Cummins X15 engines manufactured from 2022 through 2024. Typical applications include long-haul tractors, regional freight units, vocational trucks, and other platforms where reliable emissions control is critical to daily operation.

Installation Notes
Allow the exhaust and aftertreatment system to cool completely before servicing. Remove the existing SCR unit and inspect surrounding DEF lines, sensors, and mounting points for signs of wear or buildup. Install the replacement assembly using appropriate seals and fasteners to ensure proper alignment. After installation, clear stored fault codes and verify correct aftertreatment behavior using diagnostic tools.

Final Thoughts
If your Cummins X15-powered vehicle is experiencing emissions warnings, irregular NOx control, or uneven aftertreatment performance, replacing the SCR assembly with the correct OEM-specified component can help restore stable exhaust treatment. The Cummins X15 SCR (OEM 5418634) plays a vital role in maintaining emissions system balance and dependable vehicle operation.