How Does a DEF System Work on a Semi-Truck?
Posted by: Duaparts on
Diesel Exhaust Fluid (DEF) systems are critical for reducing emissions in modern diesel engines, particularly in semi-trucks. Here’s an overview of how these systems work:
Components of a DEF System
A DEF system typically includes the following components:
DEF Tank: Stores the DEF, which is a mixture of 32.5% urea and 67.5% deionized water.
DEF Pump: Moves the fluid from the tank to th
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