Urea Pump A042P119 for Cummins
Applicable models:Cummins
Reference part number:A042P119，5303018，5303585 ，5314011， A050S366，4387283
| Rated output : | 24V,2 plugs |
| Pulley : | |
| Size : | |
| Weight : | Net weight 1.95 |
| Packaging : | Neutral kraft paper packaging |
| Spot/Pre sale : | presale |
| Warranty : | 1 year |
| Product number : |
| Type : | urea pump |
| Specification : | 24V,2 plugs |
| Pulley : | |
| Brand : | nuojin |
| Number : | A042P119 |
| Quality : | renovate |
| Delivery time : | 30DAYS |
About the A042P119 Urea Pump
The A042P119 dosing pump meters AdBlue into the exhaust stream. Quantity accuracy matters: too little and NOx conversion falls, too much and ammonia slips through the catalyst.
The unit is supplied complete and matched to the original interfaces, so it fits with standard tools and the existing wiring or pipework. Nothing has to be adapted: connectors, brackets and mounting points follow the original design.
Specification Summary
- Integrated pump, pressure sensor and control electronics
- Sealed fluid path for diesel exhaust fluid
- Filter included in the suction path
- Direct replacement for the original module
Reference Numbers and Cross References
The part is listed under the following references:
- A042P119
- 5303018
- 5303585
- 5314011
- A050S366
- 4387283
Application Notes
The module is used on Cummins applications. Match the part number and the connector layout; dosing modules are not interchangeable between engine families.
Confirm the number against the vehicle before ordering. Where a model was built with more than one variant, the part number is the only reliable guide.
Failure Modes
Fluid quality decides life. Contaminated or diluted AdBlue crystallises in the pump and blocks the filter, and the pump then runs dry against a rising pressure error.
Electronics fail with heat and vibration. A module that loses communication or reads pressure incorrectly will stop dosing and trigger a derate.
Fault Symptoms
- NOx efficiency or dosing fault code stored
- Engine derate or torque limitation
- White crystal deposits around the dosing injector
- Rough running after cold start
- Diesel exhaust fluid consumption higher or lower than normal
Checking Before Replacement
Read the fault codes and the dosing pressure before condemning the pump. A blocked filter or a leaking line mimics a failed pump, so check both first.
Diagnose before replacing. Most repeat failures come from a fault that was left in place.
Installation Notes
Flush the lines, fit a new filter and clean the tank neck before fitting the module. Prime the system with the diagnostic routine, clear the codes and run a dosing test. Keep the fluid path clean: any grit that enters will end up in the pump.
Related Parts to Check at the Same Time
- Urea filter
- Dosing injector
- NOx sensor
- Urea tank and lines
Quality Control and Supply
Every batch is function-tested before packing. Hejian Nuojin Auto Parts Co., Ltd. supplies in neutral packaging with a one-year warranty.
Frequently Asked Questions
Why did the original fail?
Contamination, heat and wear account for most failures. Clean installation and correct consumables prevent a repeat.
Is a warranty included?
Yes, one year against manufacturing defects, with neutral packing for resale.
How do I confirm this is the right unit?
Read the number from the old part and compare the key interfaces: connectors, brackets, pulley or pipework.
Can it be fitted without special tools?
Standard hand tools cover most of the job. Refrigerant work needs recovery and charging equipment, and urea systems need a diagnostic routine to prime.
