Navistar/International Cummins

Emissions Control You Can Trust: Navistar/International DEF Head Unit OEM 2520612C1

What Is It?

The DEF Head Unit (OEM 2520612C1) is a factory-level component designed for Navistar and International vehicles powered by Cummins engines. It regulates and monitors Diesel Exhaust Fluid (DEF) flow into the SCR system to reduce NOₓ emissions and maintain compliance with emissions regulations.

Why Choose OEM 2520612C1?

Built to Navistar and Cummins specifications, this unit delivers accurate DEF dosing and diagnostics compatibility right out of the box. It integrates easily with factory electronics, supporting correct system operation without triggering SCR-related faults.

Key Benefits

✅ Exact OEM fit for Navistar/Cummins DEF systems
✅ Accurate fluid metering for NOₓ control
✅ Seamless plug-and-play integration with factory wiring
✅ Durable design, built to last under field conditions
✅ Supports emissions diagnostics and maintenance tracking

Applications

This DEF Head Unit is commonly used in Navistar and International vans, medium- and heavy-duty trucks equipped with Cummins diesel engines. Often found in Class 6–8 vehicles (DuraStar, MV Series, WorkStar, LoneStar, LT/TranStar, ProStar, etc.) using SCR emissions systems.

Installation Notes

A certified technician should handle installation. Check DEF line connectors and sensor ports for cleanliness and tightness. After installing, run a forced SCR cycle or complete system test using diagnostic tools. Clear any existing fault codes prior to return to service.

Final Thoughts

The OEM 2520612C1 DEF Head Unit delivers reliability and precision for emissions systems in Navistar vehicles with Cummins lighting. With OEM-grade engineering and smooth system integration, it helps ensure SCR DURABILITY, emissions compliance, and operational uptime fleet-wide.