Tailored Emissions Control: Nova Cummins ISB 6.7L DEF Head Unit
What is it?
The Nova Cummins ISB 6.7L DEF Head Unit is a precision-engineered module within the Selective Catalytic Reduction (SCR) system of Cummins ISB 6.7L engines built into Nova chassis applications. It manages the delivery and monitoring of Diesel Exhaust Fluid (DEF), ensuring accurate dosing into the exhaust stream to neutralize nitrogen oxides (NOx) emissions. Built-in sensors track DEF fluid level, temperature, and pressure to maintain system reliability and emissions compliance.
Why choose a Nova-designed DEF Head Unit?
Specifically tailored for Nova vehicles powered by Cummins ISB 6.7L engines, this DEF Head Unit integrates flawlessly with the existing control architecture. Its factory-matched calibration ensures consistency in dosing performance and communication with the vehicle’s engine control module (ECM), minimizing the risk of SCR faults, limp mode alerts, or emission system malfunctions. This unit delivers OEM-grade reliability without modifications.
Key Benefits
✅ Direct-fit for Nova chassis equipped with Cummins ISB 6.7L engines
✅ Precisely regulates DEF dosing for optimal NOx reduction
✅ Includes integrated sensors for fluid level, temperature, and pressure monitoring
✅ Durable construction resists crystallization, temperature swings, and vibration
✅ Helps avoid diagnostic trouble codes and system derates in SCR operation
Applications
Ideal for Nova vehicles powered by Cummins ISB 6.7L engines, including shuttle buses, delivery platforms, and specialty transport units. This DEF Head Unit supports consistent SCR performance under daily duty and ensures emissions compliance in demanding urban and regional routes.
Installation Notes
Before installing, disconnect power and drain/disable the DEF system. Clean the DEF tank and all mating surfaces to eliminate residue or crystallization. Install the new unit securely with OEM-standard connectors and align fluid lines accurately. After installation, clear any fault codes and verify DEF fluid flow and sensor readings using diagnostic tools.
Final Thoughts
If your Nova chassis showing ERR or DEF-related fault codes or experiencing SCR system derates, the Nova Cummins ISB 6.7L DEF Head Unit is your reliable replacement. Engineered for Nova-specific applications and backed by OEM precision, it restores proper DEF function and emissions compliance. Available now at Tamerx—fast shipping and trusted quality for your fleet.