Enhance Emissions Control with Cummins ISB 6.7L B6.7 SCR Filter 2018–2022 OEM 4394860
What is it?
The SCR Filter (OEM 4394860) is designed for the Cummins ISB 6.7L and B6.7 engine series covering the years 2018–2022. It’s an engineered component within the selective catalytic reduction (SCR) system that supports the conversion of nitrogen oxides (NOx) into less harmful emissions, ensuring your engine remains compliant and efficient.
Why choose this filter?
Built specifically for the Cummins ISB 6.7L and B6.7 engine models (2018–2022), this OEM-grade filter provides precise fitment and dependable performance. A compromised filter can cause elevated NOx outputs, increased fault codes, or reduced system efficiency—this replacement restores proper after-treatment operation.
Key Benefits
✅ Promotes effective NOx conversion for cleaner exhaust
✅ Helps reduce emissions-related fault codes and interruptions
✅ Designed for heavy-duty environments and high exhaust temperatures
✅ Direct-fit replacement—no modifications required
✅ Manufactured to meet OEM durability and performance standards
Applications
Ideal for trucks and equipment powered by the Cummins ISB 6.7L or B6.7 engines (2018–2022) where emissions integrity and consistent system performance are crucial.
Installation Notes
Before installing, inspect the SCR module and exhaust pathways for soot or debris. Replace any worn seals or clamps. After installation, clear fault codes and monitor NOx sensor values to confirm correctly functioning emissions control.
Final Thoughts
If your ISB 6.7L or B6.7 powered engine is exhibiting emissions faults, elevated NOx readings, or SCR system inefficiency, the OEM 4394860 SCR Filter is the appropriate replacement solution. With factory-quality engineering and reliable construction, it restores clean emissions performance and system reliability.