Cummins QSX15 SCR Filter 2011-2020: OEM 4353160

Engine-Matched NOx Conditioning for Cummins X15 & QSX15 Engines (2011–2020)

What is it?
The Cummins X15, QSX15 SCR Filter (2011–2020), designated by OEM part number 4353160, is an emissions aftertreatment component designed for use with Cummins X15 and QSX15 diesel engines built between 2011 and 2020. Installed as part of the Selective Catalytic Reduction (SCR) system, this filter helps condition exhaust gases so that nitrogen oxides (NOx) are better prepared for conversion by Diesel Exhaust Fluid (DEF) downstream in the SCR catalyst.

Why choose this SCR Filter?
This SCR filter is engineered to meet Cummins’ original specifications for the X15 and QSX15 platforms, ensuring a correct fit and dependable integration with DEF injectors, emissions sensors, and engine control systems. Over time, soot, ash, and other exhaust byproducts can accumulate in the filter, reducing its effectiveness and potentially leading to uneven exhaust conditioning or emissions warnings. Using the correct OEM-specified SCR filter helps maintain smoother exhaust flow and supports consistent emissions system behavior.

Key Benefits
✅ Designed specifically for Cummins X15 and QSX15 aftertreatment systems (2011–2020)
✅ Helps prepare exhaust gases for efficient NOx reduction
✅ Promotes coordinated interaction with DEF dosing and emissions sensors
✅ Direct-fit replacement — no modifications required
✅ Built for demanding exhaust environments and extended service life

Applications
This SCR filter is suitable for heavy-duty trucks and commercial vehicles with Cummins X15 or QSX15 engines manufactured between 2011 and 2020. It’s commonly used in long-haul tractors, regional freight units, vocational trucks, and other work platforms where regulated emissions conditioning and compliance are essential to daily operation.

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

Final Thoughts
If your Cummins X15 or QSX15-equipped vehicle is experiencing NOx-related alerts, inconsistent exhaust behavior, or uneven aftertreatment performance, replacing the SCR filter with the correct OEM-specified unit can help restore balanced exhaust conditioning and more predictable overall system response. The Cummins X15, QSX15 SCR Filter (OEM 4353160) plays a key role in managing regulated exhaust chemistry and supporting dependable engine operation across varied duty cycles.