Cummins DEF Doser Injector 2018-2024: OEM 6372559RM

Optimized DEF Dosing: Cummins OEM Precision

What Is It?

The OEM 6372559RM DEF doser injector is a factory-spec component for SCR-equipped Cummins diesel engines from 2018 through 2024. It precisely meters Diesel Exhaust Fluid (DEF) into the aftertreatment system to support NOₓ reduction and ensure emissions compliance.

Why Choose OEM 6372559RM?

Designed to match Cummins’ exacting standards, this injector delivers consistent and accurate DEF control while integrating fully with factory engine controls. Its plug-and-play design simplifies swap-out and helps prevent emissions system interruptions or diagnostic faults.

Key Benefits

✅ Exact OEM fit and system compatibility
✅ Precision dosing for optimal NOₓ control
✅ Plug-and-play wiring harness interface
✅ Durable—resistant to DEF corrosion and high exhaust temperatures
✅ Designed for continuous working conditions under demanding conditions

Applications

Used in a wide range of medium- and heavy-duty vehicles—including trucks, buses, and off-highway equipment—powered by SCR-equipped Cummins engines. Essential for fleets and operators requiring reliable emissions control across diverse environments.

Installation Notes

Installation should be handled by a qualified technician. Inspect DEF supply lines and fittings before starting. Once replaced, clear any fault codes and perform a forced SCR cycle using Cummins-approved diagnostics to confirm proper dosing.

Final Thoughts

The OEM 6372559RM DEF doser injector delivers dependable urea metering and SCR system working conditions. With its precision engineering and Iso-certified durability, it helps keep your emissions controls working smoothly and your equipment compliant.