Cummins DEF Doser Injector 2018-2024: OEM 5633310

Delivering Precision DEF Metering for Cummins SCR Systems

What Is It?

The OEM 5633310 DEF doser injector is a direct replacement for SCR-equipped Cummins diesel engines from model years 2018 through 2024. It regulates the precise flow of Diesel Exhaust Fluid into the aftertreatment system, playing a vital role in reducing NOₓ emissions and maintaining regulatory compliance.

Why Choose OEM 5633310?

Engineered to Cummins factory specifications, this injector guarantees a seamless fit and robust communication with the engine control unit. By delivering DEF accurately and consistently, it helps preserve SCR system efficiency and prevents diagnostic issues or working conditions disruptions.

Key Benefits

✅ Exact OEM fit for 2018–2024 Cummins SCR engines
✅ Precise dosing ensures effective NOₓ mitigation
✅ Plug-and-play design compatible with factory wiring
✅ Durable construction resists DEF corrosion and exhaust heat
✅ Optimized for uninterrupted working conditions under real-world use

Applications

This injector is used in commercial trucks, buses, and heavy equipment powered by SCR-enabled Cummins engines. It's essential for fleet operators and manufacturers who need reliable emissions control across diverse work sites.

Installation Notes

Installation should be carried out by a trained technician. Inspect DEF lines and connections for build‑up or wear before starting. Upon installation, clear any fault codes and initiate a forced SCR system test with Cummins-compatible diagnostic tools to ensure proper dosing functionality.

Final Thoughts

The OEM 5633310 DEF doser injector is critical for maintaining accurate urea delivery and SCR system integrity. With its OEM-quality fit and steadfast working conditions, it supports emissions compliance and helps keep your equipment on the road without interruption.