Terex Cummins

Seamless Emissions Control for Terex / Cummins Terminal Tractors

What Is It?

The OEM 37346 DEF Head Unit (Tamerx part 5410‑11‑FC01‑3) is a factory-calibrated module designed for Terex terminal tractors powered by Cummins ISL engines. It manages Diesel Exhaust Fluid (DEF) level sensing, fluid temperature, suction flow, and features an integrated 40 µm dosing header.

Why Choose OEM 37346?

Engineered to meet Cummins and Terex specifications, this unit offers plug-and-play compatibility with OEM wiring, tank interface, and ECM logic. Being remanufactured to OEM standards ensures accurate system operation, helps avoid DEF faults, and maintains emissions compliance.

Key Benefits

✅ Designed specifically for Terex Cummins ISL platforms
✅ Monitors DEF level, temperature, and suction accurately
✅ Built-in dosing header with 40 µm filter for clean fluid delivery
✅ Direct-fit integration with factory harness—no modification needed
✅ Backed by 1 million-mile / 1‑year Tamerx warranty

Applications

This head unit is commonly installed in Terex terminal tractors (e.g. yard and port operations) using Cummins ISL engines with SCR aftertreatment. It ensures DEF system reliability in high-cycle industrial environments.

Installation Notes

Professional installation is recommended. Before replacing, inspect DEF tank ports, hoses, and electrical connectors. After installation, use Cummins-compatible diagnostic tools to clear fault codes and confirm valid readings for DEF level, temperature, and dosing flow.

Final Thoughts

The OEM 37346 DEF Head Unit is a mission-critical component for maintaining accurate DEF management in Terex‑Cummins SCR systems. With factory-calibrated durability, integrated filtration, and OEM-fit reliability, it supports uninterrupted emissions compliance and fleet uptime.