Built for Material Handling: Doosan D34 Cummins DEF Head Unit
What is it?
The Doosan D34 DEF Head Unit is a high-precision emissions control module used in Doosan D34 compact equipment powered by Cummins diesel engines. It accurately meters Diesel Exhaust Fluid (DEF) into the exhaust system to neutralize nitrogen oxide (NOx) emissions. With integrated sensors that continuously monitor fluid level, temperature, and pressure, it ensures stable SCR system function even under tough working conditions.
Why choose the Doosan D34 DEF Head Unit?
Engineered specifically for the Doosan D34 platform with its factory Cummins engine integration, this OEM-grade module offers plug-and-play alignment with ECM calibration and wiring harnesses. It prevents SCR fault codes, engine derates, and dosing inconsistencies associated with aftermarket units. Built for high-vibration, dust-heavy job sites, it delivers durable emissions control you can count on.
Key Benefits
✅ Direct-fit replacement for Doosan D34 equipment powered by Cummins engines
✅ Precisely regulates DEF dosing to maintain emissions compliance
✅ Onboard sensors continuously monitor DEF fluid level, temperature, and pressure
✅ Engineered to resist DEF crystallization, vibration, thermal cycling, and dust
✅ Helps prevent SCR errors, limp-mode triggers, and system reliability issues
Applications
Ideal for Doosan D34 loaders and compact equipment used in construction, material handling, and warehouse environments. This DEF Head Unit ensures accurate emissions control and SCR performance during frequent startup/shutdown cycles, idle periods, and high-dust indoor or outdoor use.
Installation Notes
Before installing, shut down the machine and depressurize the DEF system completely. Clean the DEF reservoir and fluid lines thoroughly to remove any residue or crystallization. Mount the replacement head unit using OEM connector fittings and secure all electrical and fluid connections firmly. After installation, clear any fault codes and confirm DEF dosing and sensor performance with a diagnostic scan tool.
Final Thoughts
If your Doosan D34 unit is showing DEF-related alerts, SCR derates, or inconsistent dosing behavior, the Doosan D34 Cummins DEF Head Unit is the reliable OEM solution you need. Designed for precision, durability, and direct fitment, it restores proper SCR operation and emissions compliance. Available now at Tamerx—trusted parts for demanding environments.