Hose, Def Return- Aftertreatment To Tank 4098843C1

The Navistar International DEF Return Hose Aftertreatment to Tank (4098843C1) is a fluid transfer component designed to route diesel exhaust fluid from the aftertreatment system back to the tank. It serves as a critical conduit within the exhaust treatment system, ensuring proper DEF circulation and system functionality in commercial heavy-duty vehicles.