When your refuse collection trucks or municipal fleet use Dennis Eagle bodies with underlying Cummins engines, every emissions component must function with precision. The DEF (Diesel Exhaust Fluid) head unit is one of those parts often overlooked—until failure brings warnings, derates, or system faults. A dependable OEM-grade DEF head is critical to keeping your aftertreatment system accurate, responsive, and regulation-compliant.
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Monitors key fluid parameters: DEF level, temperature, and urea concentration, sending accurate signals back to the engine’s control module
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Controls DEF dosing into the exhaust stream with precision so the SCR (Selective Catalytic Reduction) system can reduce NOx emissions
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Built to match OEM standards for Dennis Eagle / Cummins setups, ensuring drop-in compatibility and correct calibration
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Helps prevent emissions fault codes, warning indicators, and engine derates triggered by sensor drift or failure
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Engineered to withstand vibration, temperature swings, and the corrosive nature of DEF fluid
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Designed for field replacement, minimizing downtime in critical fleet operations
In fleet service, reliability isn’t just nice to have—it’s mandatory. Installing a high-quality, compatible DEF head unit ensures your emissions feedback system remains solid and responsive. Don’t let a failed sensor become the weakest link in your emissions chain—equip your Dennis Eagle trucks with the right DEF head and keep operations smooth, compliant, and trouble-free.