Cummins Diesel Exhaust Fluid Doser Injector By BESTfit

Maintain peak emissions system performance with the BESTfit Cummins DEF Doser Injector, a reliable replacement for 5506855, A050S599, and 4377650. Designed specifically for Cummins SCR applications, this diesel exhaust fluid injector ensures accurate dosing to support proper catalyst function and reduce harmful NOx emissions. Built for consistent performance under demanding operating conditions, it promotes cleaner combustion and improved system efficiency. The unit includes an integrated electrical connector along with a factory-installed nozzle and housing for easy installation and secure fitment. When durability and emissions compliance matter, BESTfit provides a trusted DEF dosing solution for your fleet.

* High Quality Diesel Exhaust Fluid Doser Injector
* Designed For SCR Emissions Systems
* Supports Proper SCR Catalyst Operation
* Helps Reduce NOx Emissions
* Includes:
  - (1) DEF Doser Injector
  - Integrated Electrical Connector
  - Factory Installed Nozzle And Housing
* Sold Individually
* Warranty On Diesel Exhaust Fluid Doser Injectors Against Defects In Workmanship & Material From Date Of Purchase

*** High Quality Aftermarket Replacement Part (Not OEM)***

* Cross Ref 4354281 4354281NX 4354281RX 4377650 4377650NX 4377650RX 5472967 5472967NX 5472967RX 5506855 5506855NX 5506855RX 5578983 5578983NX 5578983RX A050S599 A061L203

** This Item Ships Direct From The Manufacturer And Will Arrive In A Separate Package And Possibly A Different Time Than The Balance Of Your Order **