Designed to Handle the Haul: Ford F‑650 / F‑750 Cummins ISB 6.7 L DEF Head Unit
What is it?
The Ford F‑650 / F‑750 Cummins ISB 6.7 L DEF Head Unit is a precision-engineered module in the SCR (Selective Catalytic Reduction) system of medium-duty Ford trucks powered by Cummins ISB 6.7 L engines. It accurately meters Diesel Exhaust Fluid (DEF) into the exhaust stream to neutralize nitrogen oxide (NOx) emissions. Onboard sensors constantly monitor fluid level, temperature, and pressure to ensure accurate dosing and system reliability under heavy load cycles.
Why choose the Ford OEM DEF Head Unit?
Specifically designed for Ford F‑650 and F‑750 trucks with Cummins ISB 6.7 L engines, this OEM DEF Head Unit offers perfect plug-and-play fitment with factory ECM calibration and wiring harnesses. It helps prevent SCR faults, DEF dosing irregularities, and limp-mode occurrences that may arise from generic replacements. Built for the rigors of fleet operations, it delivers dependable emissions control where reliability matters most.
Key Benefits
✅ Drop-in OEM fit for Ford F‑650 / F‑750 platforms with Cummins ISB 6.7 L
✅ Precisely regulates DEF injection to comply with NOx emission standards
✅ Integrated sensors provide real-time feedback on fluid, pressure, and temperature
✅ Designed to withstand vibration, temperature extremes, and DEF crystallization
✅ Helps reduce SCR-related errors, derates, and vehicle downtime
Applications
Ideal for Ford F‑650 and F‑750 trucks in vocational, delivery, utility, or regional service applications. This DEF Head Unit ensures emissions compliance across long-haul trips, frequent routes, and stop-and-go city driving.
Installation Notes
Before replacing, power off the vehicle and fully depressurize the DEF system. Clean the DEF tank and connections thoroughly to eliminate residue or crystallized buildup. Install using OEM connector fittings and ensure all fluid and electrical lines are securely fastened. After installation, clear any diagnostic codes and verify DEF dosing accuracy and sensor output using a scan tool.
Final Thoughts
If your Ford F‑650 or F‑750 with a Cummins ISB 6.7 L engine is experiencing DEF system alerts, SCR-related fault codes, or dosing inconsistencies, this OEM DEF Head Unit is the reliable upgrade you need. Built for durability, emissions precision, and fleet compatibility—available now at Tamerx to keep your engine compliant and your operations moving.