Jobsite Reliability: Bobcat D34 Cummins DEF Head Unit
What is it?
The Bobcat D34 DEF Head Unit is a precisely engineered module that controls Diesel Exhaust Fluid (DEF) injection in machines powered by Cummins engines. It ensures the accurate dosing of DEF into the exhaust stream to neutralize harmful NOx emissions. With built-in sensors monitoring fluid level, temperature, and pressure, it supports consistent SCR system performance, especially in demanding jobsite environments.
Why choose the Bobcat D34 DEF Head Unit?
Built specifically for Bobcat D34 equipment powered by Cummins engines, this OEM-certified module provides seamless plug-and-play fitment and integrates with factory ECM calibration and harnesses. It eliminates SCR fault codes, limp-mode, and DEF dosing inconsistencies that often arise from generic replacement units. Designed for the tough LGV and material handling environment, it withstands vibration, dust, and temperature extremes to deliver dependable emissions control.
Key Benefits
✅ Direct-fit replacement for Bobcat D34 loaders and equipment using Cummins engines
✅ Precisely controls DEF injection to satisfy emissions regulations
✅ Built-in sensors continuously monitor DEF fluid level, temperature, and pressure
✅ Resistant to DEF crystallization, extreme temperatures, and high-vibration environments
✅ Minimizes SCR diagnostic errors, engine derates, and compliance disruptions
Applications
Ideal for Bobcat D34 machines in material handling, rental fleets, indoor/outdoor jobsite use, and compact loader fleets powered by Cummins diesel engines. This DEF Head Unit ensures diesel emissions compliance during cycles of startup, idling, and operation in dusty or extreme environments.
Installation Notes
Before installation, shut off the machine and depressurize the DEF system. Clean the DEF tank and fluid lines thoroughly to remove residue or crystallization. Install the new unit using OEM connector fittings, making sure all fluid and electrical connections are properly seated. After installation, clear any diagnostic codes and confirm proper DEF dosing and sensor performance using a diagnostic tool.
Final Thoughts
If your Bobcat D34 loader is showing DEF system alerts, engine derates, or inconsistent dosing behavior, the tailored Bobcat D34 Cummins DEF Head Unit is the reliable OEM-grade solution. Precision-built for your machine and environment, it restores accurate SCR function and emissions compliance—now available at Tamerx.