Emissions Control Engineered for PowerTraxx: Cummins ISB/B6.7/ISL DEF Head Unit
What is it?
The PowerTraxx Cummins DEF Head Unit is an emissions-critical component outfitted on PowerTraxx locomotives, yard trucks, and heavy-duty industrial vehicles powered by Cummins ISB, B6.7, or ISL engines. It provides precise dosages of Diesel Exhaust Fluid (DEF) into the exhaust stream, neutralizing NOx emissions while sensors ensure accurate fluid level, temperature, and pressure monitoring for consistent SCR system operation.
Why choose a PowerTraxx-specific DEF Head Unit?
Built specifically for PowerTraxx machinery integrated with Cummins engines, this DEF Head Unit offers plug-and-play compatibility with factory wiring, sensors, and ECM calibration. It reduces the risk of SCR fault codes, engine derates, and dosing errors seen with standard aftermarket parts. Engineered for tough-duty rail and industrial environments, this OEM solution delivers emissions reliability where uptime matters most.
Key Benefits
✅ Direct-fit for PowerTraxx vehicles powered by Cummins ISB, B6.7, or ISL engines
✅ Accurately meters DEF delivery for optimal NOx reduction
✅ Onboard sensors continuously monitor DEF level, temperature, and pressure
✅ Built to withstand DEF crystallization, vibration, temperature swings, and industrial conditions
✅ Helps prevent SCR error codes, limp-mode triggers, and emissions system failures
Applications
Ideal for PowerTraxx applications such as rail yard switchers, terminal tractors, shunters, and industrial electric-traction vehicles using Cummins ISB, B6.7, or ISL engines. This DEF Head Unit ensures consistent emissions control through stop-start rail cycles and continuous-load operations.
Installation Notes
Before replacing, disconnect all power and depressurize the DEF system. Clean the DEF tank and lines thoroughly to clear any residue or crystallized buildup. Install the OEM DEF Head Unit using correct connectors and mountings. Ensure all fluid and electrical connections are tight. After installation, reset any active codes and validate DEF dosing and sensor readings with a diagnostic tool.
Final Thoughts
If your PowerTraxx Cummins-equipped equipment is experiencing DEF system warnings or SCR derates, this DEF Head Unit is the reliable OEM-grade solution. Purpose-built for seamless integration and long-term durability, it restores emissions performance and system integrity—available now at Tamerx, trusted parts for demanding work environments.