Hose Assy-Htd Def Ret/Sup (4 X 20 M50-6039-4412050

The Paccar Heated DEF Return and Supply Hose Assembly (M50-6039-4412050) is designed to maintain diesel exhaust fluid temperature within the emissions control system. This hose assembly facilitates the controlled circulation of DEF fluid, ensuring proper flow and temperature regulation in heated return and supply lines. It is essential for managing DEF fluid in commercial vehicle emissions systems.