Engineered for Performance: Doosan Bobcat Cummins DEF Head Unit
What is it?
The Doosan Bobcat Cummins DEF Head Unit is a precision emissions control module used in Doosan Bobcat machinery powered by Cummins ISB or B6.7 engines. It accurately meters Diesel Exhaust Fluid (DEF) into the exhaust stream, essential for reducing nitrogen oxide (NOx) emissions. The unit features built-in sensors that monitor DEF fluid level, temperature, and pressure to ensure consistent SCR system performance across rugged work environments.
Why choose the Doosan Bobcat Cummins DEF Head Unit?
Designed to integrate perfectly with Doosan Bobcat chassis and Cummins engine systems, this DEF Head Unit provides OEM-level reliability and plug-and-play fitment with factory ECM calibration and connector wiring. It helps avoid SCR fault codes, DEF dosing inconsistencies, and potential engine derates commonly seen with non-OEM replacements. Built for heavy-duty operation, it delivers durable emissions control in harsh environments.
Key Benefits
✅ Direct OEM fit for Doosan Bobcat machinery using Cummins ISB or B6.7 engines
✅ Precisely regulates DEF dosing for maximum NOx reduction and compliance
✅ Integrated, real-time monitoring of fluid level, temperature, and pressure
✅ Engineered to resist DEF crystallization, vibration, temperature swings, and dust
✅ Helps prevent SCR-related errors, limp-mode events, and unscheduled downtime
Applications
Ideal for Doosan Bobcat skid steers, loaders, compact tractors, and utility machines powered by Cummins engines—particularly in construction, material handling, and industrial use. This DEF Head Unit ensures emissions accuracy and system reliability in varying load or idle cycles.
Installation Notes
Before installing, turn off power and ensure the DEF system is fully depressurized. Thoroughly clean the DEF tank and fluid lines to remove residue or crystallized fluid. Install the head unit using OEM connector fittings, securing all fluid and wiring connections tightly. After installation, reset fault codes and verify DEF dosing and sensor output using a diagnostic scan tool.
Final Thoughts
If your Doosan Bobcat equipment is facing DEF system faults, SCR errors, or inconsistent dosing behavior, the Cummins-compatible DEF Head Unit offers a rugged, OEM-spec solution. Built for tough environments and emissions precision, it restores DEF system integrity and keeps your machinery compliant and ready to work—available now at Tamerx.