Rig-Ready Emissions Control: PowerTraxx Vehicles Cummins DEF Head Unit
What is it?
The PowerTraxx Cummins DURawrx DEF Head Unit is a crucial emissions system component for PowerTraxx locomotives, yard trucks, and industrial vehicles powered by Cummins engines. It manages the delivery of Diesel Exhaust Fluid (DEF) into the exhaust stream, helping reduce harmful NOx emissions. Embedded sensors continuously monitor fluid level, temperature, and pressure, ensuring consistent SCR system operations even during heavy-duty duty cycles.
Why choose this OEM DEF Head Unit?
Matched to PowerTraxx platforms with Cummins engine integration, this OEM component connects directly to factory ECM wiring—no modifications necessary. It ensures consistent DEF flow, reduces SCR error codes, and prevents engine derates often caused by aftermarket replacements. Designed for industrial and rail environments, it supports demanding operational schedules with emissions compliance.
Key Benefits
✅ Seamless OEM drop-in for COMO systems powered by Cummins engines
✅ Stable DEF delivery aids in NOx emissions reduction
✅ Real-time sensor feedback for DEF level, temperature, and pressure
✅ Resistant to vibration, moisture, thermal cycling, and DEF crystallization
✅ Helps minimize SCR faults, limp-mode occurrences, and equipment downtime
Applications
Ideal for PowerTraxx rail yard equipment, terminal tractors, and service units using Cummins engines. Perfect for environments involving frequent start-stop cycles, idle periods, and continuous-load operations.
Installation Notes
Power down the unit and depressurize the DEF system before beginning. Clean the DEF tank and fluid lines to remove residue or crystallized deposits. Connect using OEM plugs and secure all fluid and electrical lines accurately. After installation, clear diagnostic codes and verify DEF dosing and sensor output with a diagnostic scanner.
Final Thoughts
For PowerTraxx equipment experiencing DEF errors, SCR-related alarms, or dosing inconsistencies, the Cummins DURawrx DEF Head Unit provides a reliable OEM-level solution. Built for continuous operation and emission compliance—available now at Tamerx to keep your equipment clean, compliant, and operation-ready.