DEF Doser Valve

[JimT]

Update:

After running with this DEF Doser valve for a month or so I can say that it's probably not made to OEM standards. Possibly an OEM reject that was sold off instead of being recycled or something. The main issue I had with it is that DEF was seeping out around the supply hose and running down the side of the Decomp tube. This is usually a sign of a clogged up doser or something broken. I also noticed higher then normal DEF consumption, though that could be related to increased regen activity.

Although, one thing to note is that my doser/decomp tube is the older style which has a thicker thermal isolator with a deeper gasket. The newer version has a thinner isolator and the gasket is basically flat. The older style may have negatively contributed to the operation of the doser, possibly causing it to clog up prematurely. It's hard to say without taking it apart again to investigate. But I've moved on and that system is no longer a concern of mine.