Overview – MODULE, DOSER FLUID SUPPLY-KC E5418889
For Cummins selective-catalyst-reduction (SCR) dosing systems, the Cummins MODULE, DOSER FLUID SUPPLY-KC E5418889 provides the correct fit and performance expected from a genuine-spec replacement.
Parts Characteristics
A diesel exhaust fluid (DEF) doser fluid-supply module that meters and delivers DEF to the dosing valve. It maintains the supply head the injector needs for a clean spray pattern, and a weak or contaminated module shows up first as poor NOx conversion and a fault code.
Applicable Models & Applications
Used on Cummins SCR systems specifying this doser supply module. Confirm the port sizes, mounting pattern and connector against your system – doser modules differ in outlet thread and calibration.
Maintenance & Replacement
Treat dosing faults as a supply-module symptom first. A tired module delivers enough at idle and falls short under load, and the engine behaves exactly like it is starving the doser because that is what it is.
Use only clean DEF from a sealed container and keep the supply lines clear. Contamination in the fluid crystals in the module and the dosing valve, and the repair grows well beyond a module swap.
Replace the module with the fluid lines and seals together. Fitting a new module onto a restricted or contaminated line repeats the fault it was meant to cure.
Prime and check for weeping at the ports on the first run. A doser supply module that starts clean and stays clean is the difference between a ten-minute job and an emissions down event.
Price Reference (USD)
Expect a market price around USD 120-400 for the MODULE, DOSER FLUID SUPPLY-KC E5418889; we confirm the exact figure on your pro-forma invoice.
Value & Service
We supply brand-new DEF doser fluid-supply modules with the port and calibration confirmed against your Cummins SCR system, so emissions control stays in spec.
For critical Cummins Electrical Parts such as the MODULE, DOSER FLUID SUPPLY-KC E5418889, Racer Machinery offers both single units and bulk quantities with traceable sourcing.
