602065 | Genuine Cummins® Diesel Exhaust Fluid Header column control Founded in 1942 and now

Founded in 1942 and now a division of Daimler Truck North America

Year Make Model Engine Important vehicle option details 1999-2000 Cadillac Escalade 8 Cyl 5

and regional use

Measure and regulate how much DEF is injected

602065 | Genuine Cummins® Diesel Exhaust Fluid Header column control Founded in 1942 and nowDescription: A Diesel Exhaust Fluid (DEF) header 602065 is a key component in a diesel vehicles emissions control system, specifically within the Selective Catalytic Reduction (SCR) system. The DEF header (also called a DEF tank head or DEF sender assembly) is the unit mounted on or inside the DEF tank. It monitors and manages the Diesel Exhaust Fluid thats injected into the exhaust to reduce harmful nitrogen oxide (NOx) emissions. Part Number: 602065