In busy terminal operations and yards where every minute counts, ensuring your emissions system stays in spec is more than compliance—it’s uptime. The DEF (Diesel Exhaust Fluid) head unit on TICO Tractors with a Cummins engine is one of the most critical components in the SCR (Selective Catalytic Reduction) system. The correct unit built to OEM 20086-9 standards ensures accurate sensing and dosing of DEF. If it fails or drifts out of calibration, you could end up with warning codes, dosing errors, or forced derates at inopportune times.
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Monitors DEF fluid level, temperature, and urea concentration—and sends accurate feedback to the engine’s control unit
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Controls precise dosing of DEF into the exhaust stream so that NOx emissions get properly reduced
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Built to match OEM 20086-9 tolerances, ensuring drop-in compatibility for TICO Tractors / Cummins setups
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Helps avoid fault codes, emissions warnings, or engine derates caused by sensor drift or inaccurate readings
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Designed to withstand vibration, stop-start cycles, and exposure to diesel exhaust fluid chemistry
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Comes with core return option and full 1-million-mile / 1-year warranty
Don’t let a small sensor become your equipment’s weak point. Installing the correct DEF head unit according to OEM 20086-9 ensures your emissions feedback loop stays accurate, your SCR system stays efficient, and your fleets remain ready to move when the yard demands it. Emissions readiness isn’t optional—it’s foundational.


























































