Fuel & Emissions Sys
The primary function of the fuel system is to store fuel, filter out contaminants and water, and deliver a precise, high-pressure spray into the engine’s combustion chambers.
Description
The fuel system for a heavy-duty truck supplies clean, pressurized diesel to the engine, while the emissions system (aftertreatment system) treats the exhaust gases to remove harmful pollutants before they are released into the atmosphere. Trailers themselves generally do not have a fuel or emissions system, but rather utilize aerodynamic and efficiency features that complement the truck’s systems.
