Get Your Emissions System Back on Track for Cummins B6.7 & L9 (2018–2021)
What is it?
The Cummins B6.7, L9 SCR OEM 5418680 is a key emissions aftertreatment component that helps lower nitrogen oxide (NOx) emissions from your diesel engine’s exhaust. In partnership with the diesel exhaust fluid (DEF) system, this SCR assembly aids in converting harmful exhaust gases into cleaner compounds before they exit the tailpipe, helping your vehicle stay within emissions requirements while maintaining dependable operation.
Why choose OEM 5418680?
This OEM SCR assembly is built to meet Cummins’ original specifications for both B6.7 and L9 engines manufactured from 2018 through 2021. Designed for proper integration with factory aftertreatment components, it helps reduce the risk of emissions-related fault codes, warning lights, and engine derates. With OEM quality, you get reliable compatibility and long-term durability tailored to your engine’s design.
Key Benefits
✅ Fits Cummins B6.7 & L9 engines (2018–2021)
✅ Helps support effective NOx reduction with DEF
✅ Aids in minimizing emissions warnings and faults
✅ Constructed to handle high exhaust temperatures
✅ Direct-fit design for straightforward installation
Applications
This SCR assembly is ideal for on-highway trucks, vocational vehicles, and commercial equipment powered by Cummins B6.7 or L9 engines from 2018–2021. It’s commonly used in fleets, delivery trucks, and diesel-powered equipment requiring consistent emissions control.
Installation Notes
Before beginning installation, allow the exhaust system to cool completely. Inspect related sensors, gaskets, clamps, and mounting hardware, replacing any worn components as needed. Once installed, verify all connections are secure and follow manufacturer-recommended system checks.
Final Thoughts
When emissions concerns affect your Cummins B6.7 or L9 engine, the OEM 5418680 SCR assembly offers a factory-matched solution you can trust. Designed for reliable fit and consistent operation, it helps keep your vehicle compliant and ready for daily use. Tamerx has this SCR assembly in stock and ready to ship.