Freightliner M2 DEF tank header replacement (level, temp, quality sensor)

Replacing the DEF tank header on a Freightliner M2. The header is responsible for being the pickup for DEF as well as the tank Level sensor, fluid quality and temp sensor. Please like and subscribe!

[@paiddro]

Do you have to drain the radiator ?

[@jerrymckinney1731]

Is the def sending unit in the same circuit as the deft tank tempature sensor? I have a check engine light saying it can’t read the temp inside the def tank

[@DieselRepair12]

Yes. The DEF tank temp, level, and quality sensors are all in the same assembly known as the header

[@carlton997]

My heater control valve on top of the def tank is getting very hot. I have already replaced the header. Will the heater pump cause over temp for the level sensor?

[@jeffthornton2229]

Is there a link for the replacement header? I need to replace mine and have no idea how to make sure I’m getting the correct part