DEF Doser Injector Cummins 4999800 | 4376716, 4329472

DEF Doser Injector for Cummins Aftertreatment Systems

The Cummins 4999800 DEF Doser Injector is a critical component of the Selective Catalytic Reduction (SCR) system. It precisely delivers Diesel Exhaust Fluid into the exhaust stream to facilitate the conversion of nitrogen oxides (NOx) into harmless nitrogen and water vapor.

• Ensures compliance with stringent environmental emission standards
• Optimized spray pattern for maximum DEF atomization and efficiency
• Robust design built to withstand high-temperature exhaust environments
• Direct replacement for a perfect fit and reliable engine operation