Cummins ISX15 SCR 2010-2014: OEM 4329074

Advanced Emissions Control for Cummins ISX15 Engines (2010–2014)

What is it?
The Cummins ISX15 SCR, identified by OEM 4329074, is a Selective Catalytic Reduction (SCR) component designed to reduce nitrogen oxide (NOx) emissions within the exhaust system. It works by converting harmful NOx gases into harmless nitrogen and water vapor through a chemical reaction involving Diesel Exhaust Fluid (DEF). This process is a critical part of modern diesel aftertreatment systems and helps maintain emissions compliance.

Why choose this SCR Assembly?
Modern heavy-duty diesel engines rely on multiple aftertreatment components working together to control emissions. The OEM 4329074 SCR assembly is engineered specifically for Cummins ISX15 platforms, ensuring proper integration with existing exhaust and emissions systems.

When an SCR unit becomes restricted, damaged, or less effective, it can disrupt the emissions process and lead to warning indicators, fault codes, or reduced system efficiency. A properly functioning SCR helps maintain balanced exhaust treatment and supports consistent NOx conversion throughout operation.

Choosing an OEM-matched SCR assembly helps ensure proper fitment, reliable operation, and compatibility with factory-installed aftertreatment components.

Key Benefits
✅ OEM-matched SCR assembly for Cummins ISX15 engines (2010–2014)
✅ Reduces nitrogen oxide (NOx) emissions within the exhaust stream
✅ Supports proper aftertreatment system function
✅ Helps maintain consistent exhaust gas processing
✅ Direct-fit design for streamlined installation
✅ Built for durability in demanding heavy-duty applications

Applications
This SCR assembly is designed for Cummins ISX15 engines manufactured between 2010 and 2014. These engines are commonly found in heavy-duty trucks, vocational vehicles, and commercial transportation applications where advanced emissions control systems are required to manage exhaust output and maintain regulatory compliance.

Installation Notes
Before installation, allow the exhaust system to cool completely. Remove the existing SCR assembly and inspect surrounding components, including DEF lines, sensors, clamps, and mounting hardware for wear or contamination. Install the replacement unit using the correct seals and hardware to ensure proper alignment and exhaust flow. After installation, verify system operation, inspect for leaks, and clear any stored fault codes using diagnostic equipment.

Final Thoughts
Effective emissions control depends on properly functioning aftertreatment components. The Cummins ISX15 SCR (OEM 4329074) plays an important role in reducing NOx emissions and supporting consistent exhaust treatment, helping maintain dependable operation in demanding diesel applications.