Cummins DEF Head Unit : OEM ASP5910-6506711

Reliable Emissions Monitoring Starts with the Right DEF Head Unit

What Is It?

The Cummins DEF Head Unit (OEM ASP5910-6506711) is a multifunctional component used in diesel exhaust systems with SCR (Selective Catalytic Reduction) technology. It houses the sensors needed to measure DEF level, temperature, and fluid quality, while also drawing DEF from the tank for use in emissions control.

Why Choose OEM ASP5910-6506711?

Designed to Cummins’ original specifications, the OEM ASP5910-6506711 provides accurate data transmission and fluid delivery for the SCR system. Its direct compatibility ensures proper fit and function, avoiding sensor mismatches and reducing the chance of false warnings or system shutdowns.

Key Benefits

✅ All-in-One Functionality: Integrates level sensing, temperature monitoring, and suction
✅ Built to OEM Specs: Ensures proper fit and communication with Cummins control systems
✅ Sealed and Resistant: Designed to handle DEF crystallization and extreme environments
✅ Simple Installation: Direct-fit design uses factory ports and connectors
✅ Supports System Reliability: Helps maintain DEF dosing and emissions compliance

Applications

This DEF head unit is used in a wide range of Cummins-powered vehicles and equipment operating with SCR systems. It’s suitable for commercial trucks, heavy machinery, and off-road applications from 2017 through current models where precision DEF management is required.

Installation Notes

Before installation, inspect the DEF tank for contamination or damage. The unit installs directly into the tank and connects to the original wiring harness. After installation, a diagnostic scan may be needed to reset fault codes and verify sensor function.

Final Thoughts

The OEM ASP5910-6506711 DEF Head Unit is a reliable solution for restoring accurate DEF system functionality in Cummins SCR-equipped vehicles. With its factory-calibrated design and dependable construction, it helps keep your emissions system running as it should—without unnecessary downtime.