2888173 - New Cummins Genuine DEF Doser Injector. Also reffered to as INJECTOR DOSER. When repairing aftertreatment systems on your Cummins diesel engine, its easy to start hanging parts before identifying the root cause of the problem. For example, a turbocharger or injector failure could be causing a plugged DPF filter. Replacing the filter will solve the high differential pressure code temporarily, but the code will return because there is excess soot from the failed upstream part. If you have questions about whether or not this part is the correct part for your engine, please call us with your Cummins engine serial Number
