Emission Control > Emission Components > Diesel Exhaust Fluid (DEF) System Main Wiring Harness

Also known as: Diesel Emissions Fluid (DEF) System Main Wiring Harness. A combination of wires and connectors that electrically attach the Diesel Exhaust Fluid System components to one another or to other vehicle harnesses. This is the main harness to all components of system-not just to one component.