5578983 | Genuine Cummins® DEF Doser Injector SCR 2.2 For EPA17 6.7 L ISB/QSB Dash Panel Trim 1L V8 - Gas 2002

1L V8 - Gas 2002 GMC Yukon Denali

the system can’t regulate brake pressure properly

or acid buildup

and Explorer

5578983 | Genuine Cummins® DEF Doser Injector SCR 2.2 For EPA17 6.7 L ISB/QSB Dash Panel Trim 1L V8 - Gas 2002Description: A DEF Doser Injector 5578983 (also called a DEF injector or dosing valve) is the component that sprays Diesel Exhaust Fluid (DEF) into the exhaust stream as part of the SCR (Selective Catalytic Reduction) system. Part Number: 5578983, 5578983RX Condition: New Manufacture Brand: Cummins Fits 5578983 For EPA17 6. 7 L ISB QSB Purpose of using 5578983: 1. Reduces harmful NOx emissions Sprays DEF into hot exhaust gases DEF breaks down into