Engineered Compliance: New Flyer Cummins DEF Head Unit (OEM 6366920)
What is it?
The New Flyer Cummins OEM 6366920 is a precision DEF (Diesel Exhaust Fluid) Head Unit designed for seamless integration with Cummins-powered New Flyer transit buses. It accurately monitors DEF levels and ensures proper fluid delivery to the SCR (Selective Catalytic Reduction) system—helping keep your fleet compliant and running efficiently.
Why choose OEM 6366920?
Made to meet New Flyer and Cummins standards, this OEM DEF Head Unit ensures perfect fit, durability, and reliable performance. Choosing OEM 6366920 helps avoid common issues such as faulty sensor readings, system errors, or engine derating associated with aftermarket parts. Turn to OEM quality for consistent emissions control and reduced service interruptions.
Key Benefits
✅ Engineered explicitly for New Flyer vehicles powered by Cummins engines
✅ Enables precise DEF monitoring and dependable SCR system performance
✅ Reduces the risk of emissions errors, fault codes, and costly derates
✅ Built to withstand extreme temperatures and DEF fluid exposure
✅ OEM direct-fit construction ensures quick and accurate installation
Applications
This DEF Head Unit is ideal for New Flyer buses equipped with Cummins engines and SCR-based emissions systems. Whether you operate diesel, hybrid-diesel, or CNG transit buses, OEM 6366920 delivers sustained emissions compliance across long service routes.
Installation Notes
Before installing, shut off the engine and allow it to cool. Clean the surrounding area of the DEF tank to prevent contamination; replace any worn gaskets or seals as needed. Install the unit and torque to Cummins or New Flyer specifications. After installation, perform a system check to confirm accurate DEF level readings and ensure there are no error codes or leaks.
Final Thoughts
For dependable emissions system performance in your New Flyer fleet, the OEM 6366920 DEF Head Unit offers an OE-grade, reliable solution. Backed by proven fitment and long-term durability, it helps keep your vehicles road-ready and compliant. Tamerx has this part in stock and ready to ship.