Diesel exhaust aftertreatment systems are designed to reduce harmful emissions and help engines operate within environmental standards. A central part of this system is the Selective Catalytic Reduction (SCR) assembly, which targets nitrogen oxide (NOx) before it exits the exhaust. For Cummins B6.7 engines from 2018 through 2024, the Cummins B6.7 SCR 2018–2024: OEM 4394760 delivers a factory-matched solution engineered to support effective emissions treatment and dependable performance.
• The SCR assembly helps convert nitrogen oxide (NOx) into harmless nitrogen and water,
supporting compliance with EPA emissions requirements and reducing environmental impact.
• The OEM 4394760 SCR unit is designed specifically for Cummins B6.7 engines built between 2018 and 2024,
ensuring precise fitment and seamless integration with your truck’s original aftertreatment system.
• Working with the DEF dosing system, this SCR assembly supports balanced exhaust treatment,
helping maintain efficient DEF usage and consistent emissions control across varied operating conditions.
• Installing the correct OEM SCR replacement helps reduce the risk of warning lights, fault codes,
and derate conditions that can interrupt operation and lead to unexpected downtime.
• A well-functioning SCR system also helps protect other aftertreatment components by minimizing excessive emissions buildup,
supporting longer service life and fewer maintenance surprises.
• Choosing a trusted OEM part like the Cummins B6.7 SCR 2018–2024: OEM 4394760 gives you confidence in durability,
correct system integration, and reliable emissions control performance.
Selecting the right SCR assembly is essential for maintaining your Cummins B6.7’s exhaust aftertreatment system and avoiding costly repairs or compliance issues. The OEM 4394760 SCR unit delivers the proper fit and dependable operation needed to help your truck produce cleaner exhaust and perform efficiently. At Tamerx Diesel Parts, we offer quality diesel components designed to help minimize downtime and keep your engine performing at its best.





































