Extend Aftertreatment Life on Cummins ISF3.8 & QSF3.8 (2011–2020)
What is it?
The Cummins ISF3.8, QSF3.8 SCR Filter OEM 4376889 is an essential emissions aftertreatment component that helps trap soot and particulate contaminants before they enter the Selective Catalytic Reduction (SCR) system. By catching these particles early, the SCR filter supports cleaner exhaust flow and helps maintain proper operation of downstream emissions hardware.
Why choose OEM 4376889?
Engineered to meet Cummins’ original specifications for ISF3.8 and QSF3.8 engines built between 2011 and 2020, this SCR filter ensures dependable fitment and seamless integration with your vehicle’s factory aftertreatment system. Choosing a genuine OEM part like the 4376889 helps reduce the risk of clogging, supports effective regeneration cycles, and protects SCR components from premature wear.
Key Benefits
✅ Designed for Cummins ISF3.8 & QSF3.8 engines (2011–2020)
✅ Helps capture soot and reduce particulate contamination
✅ Supports consistent SCR regeneration and emissions control
✅ Constructed to withstand high exhaust temperatures
✅ Direct-fit design for easier replacement
Applications
This SCR filter is ideal for light and medium-duty commercial vehicles, industrial equipment, and other diesel-powered machinery equipped with Cummins ISF3.8 or QSF3.8 engines from 2011–2020. It’s commonly used in delivery trucks, service fleets, utility rigs, and equipment requiring dependable emissions filtration.
Installation Notes
Before installation, make sure the exhaust system is completely cool. Inspect related sensors, clamps, gaskets, and mounting hardware for wear, and replace any worn components as needed. Once installed, verify that all connections are secure and follow manufacturer-recommended system checks to confirm proper operation.
Final Thoughts
When the SCR filter on your Cummins ISF3.8 or QSF3.8 engine needs replacement due to soot buildup or reduced performance, the OEM 4376889 provides a reliable, factory-matched solution. Designed for proper fitment and consistent operation, it helps keep your emissions system functioning properly and your vehicle ready for the road. Tamerx has this SCR filter in stock and ready to ship.