Cummins ISX15 SCR Outlet Catalyst Module 2011-2014: OEM 4329098

Keep Emissions Under Control with a Cummins ISX15 SCR Outlet Catalyst Module

What is it?
The Cummins ISX15 SCR Outlet Catalyst Module, identified by OEM 4329098, is an emissions aftertreatment component designed for Cummins ISX15 diesel engines produced between 2011 and 2014. Positioned downstream in the Selective Catalytic Reduction (SCR) system, the outlet catalyst module works with Diesel Exhaust Fluid (DEF) to reduce nitrogen oxide (NOx) emissions before exhaust gases exit the vehicle. This component is an essential part of the EPA-compliant aftertreatment system used on heavy-duty Cummins engines.

Why choose this SCR Outlet Catalyst Module?
A properly functioning SCR outlet catalyst module helps maintain emissions compliance while supporting efficient exhaust treatment. This module is manufactured to match Cummins ISX15 specifications, ensuring compatibility with factory-installed aftertreatment components, including DEF dosing equipment and NOx sensors. Over time, thermal cycling, catalyst aging, contamination, or prolonged exposure to exhaust deposits can reduce catalyst efficiency and trigger emissions-related fault codes or engine derates. Replacing the module with the correct OEM-matched component helps restore reliable aftertreatment performance and dependable NOx reduction.

Key Benefits
✅ Designed for Cummins ISX15 engines (2011–2014)
✅ Supports efficient NOx reduction within the SCR system
✅ Helps maintain emissions compliance and aftertreatment performance
✅ Direct-fit replacement for accurate installation
✅ Built for durability in demanding heavy-duty diesel applications

Applications
This SCR Outlet Catalyst Module is used on heavy-duty trucks, vocational vehicles, commercial fleet equipment, and industrial applications equipped with Cummins ISX15 engines from 2011 through 2014. These vehicles rely on dependable aftertreatment performance to maintain emissions compliance while delivering reliable day-to-day operation.

Installation Notes
Before installation, allow the aftertreatment system to cool completely. Inspect the DEF doser, NOx sensors, exhaust piping, clamps, seals, and mounting hardware for signs of wear, contamination, or damage. Install the replacement SCR outlet catalyst module according to manufacturer specifications, ensuring proper alignment and secure connections. After installation, verify system operation, perform any required diagnostic procedures, and clear stored fault codes using approved service equipment.

Final Thoughts
If your Cummins ISX15-powered vehicle is experiencing SCR efficiency issues, emissions-related fault codes, or engine derate conditions, replacing the SCR Outlet Catalyst Module with the correct OEM component can help restore reliable aftertreatment performance. The Cummins ISX15 SCR Outlet Catalyst Module (OEM 4329098) plays an essential role in supporting efficient NOx reduction, dependable emissions control, and long-lasting heavy-duty diesel engine operation.