Cummins Paccar PX7 SCR Filter 2014-2017: OEM 5310708

Reliable NOx Reduction for Cummins Paccar PX7 Engines (2014–2017)

What is it?
The Cummins Paccar PX7 SCR Filter (OEM 5310708) is an emissions aftertreatment component designed for Cummins-powered Paccar PX7 engines manufactured between 2014 and 2017. As part of the Selective Catalytic Reduction (SCR) system, this filter works with Diesel Exhaust Fluid (DEF) to convert nitrogen oxides (NOx) into less harmful gases before they exit the exhaust.

Why choose this SCR Filter?
Built to OEM specifications, this SCR filter is designed for proper compatibility with factory-installed aftertreatment systems. SCR systems are critical for emissions compliance—when the catalyst becomes restricted or less effective, it can lead to fault codes, reduced performance, or inconsistent exhaust flow. Replacing the filter with the correct OEM-specified unit helps maintain efficient NOx conversion and stable aftertreatment operation.

SCR systems are widely used across Cummins and Paccar platforms to meet modern emissions standards and ensure proper exhaust treatment.

Key Benefits
✅ Designed for Cummins Paccar PX7 engines (2014–2017)
✅ Supports NOx reduction through SCR operation
✅ Helps maintain proper DEF-based emissions treatment
✅ Direct replacement — no modifications required
✅ Built for heavy-duty diesel applications

Applications
This SCR filter is commonly used in medium-duty trucks equipped with Paccar PX7 engines, including Kenworth and Peterbilt vehicles. These platforms rely on consistent aftertreatment performance to meet emissions regulations and maintain reliable operation in fleet and vocational use.

Installation Notes
Before servicing, allow the exhaust and aftertreatment system to cool completely. Remove the existing SCR filter and inspect surrounding components such as DEF injectors, sensors, and mounting hardware for buildup or damage. Install the replacement unit using proper clamps and seals to ensure a secure fit. After installation, clear any stored fault codes and verify correct SCR system operation using diagnostic tools.

Final Thoughts
If your PX7-equipped vehicle is experiencing emissions alerts, reduced SCR efficiency, or inconsistent exhaust performance, replacing the SCR filter with the correct OEM component can help restore proper NOx reduction. The Cummins Paccar PX7 SCR Filter (OEM 5310708) plays a vital role in maintaining emissions compliance and dependable engine operation.