Injector, Diesel Exhaust Fluid: Description: Description
WARNING: This page is about a different car, the 2015 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.
The Diesel Exhaust Fluid (DEF) injector (1) is similar to a fuel injector, but modified to be compatible with the Urea fluid. The DEF injector is mounted to the front of the Selective Catalytic Reduction (SCR) catalyst and is designed to operate in a underbody environment.