When your vehicle or machine chains a Cummins engine with Sanny drivetrain components, emissions integrity becomes non-negotiable. The Sanny Cummins DEF Head Unit (OEM 160599000138A005, Tamerx part 160599000138A005 / core 160599000190B002) is one of those underappreciated modules that ensures your SCR (Selective Catalytic Reduction) system works exactly as intended. A bad or out-of-spec DEF head can mean warning lights, emissions fault codes, or engine derates — precisely when you can’t afford them.
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Monitors DEF fluid level, temperature, and urea concentration, relaying accurate data to the engine control module
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Regulates precise dosing of DEF into the exhaust stream so your SCR system can reduce NOx efficiently
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Built to match OEM 160599000138A005 / 160599000190B002 specifications, ensuring proper calibration and plug-in compatibility
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Helps prevent fault codes, emissions warnings, and engine derates caused by sensor drift or imprecise readings
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Designed to withstand vibration, thermal cycling, and exposure to corrosive DEF fluid chemistry
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Comes standard with a 1,000,000-mile / 1-year warranty and requires a core return
Don’t wait for a check engine light to realize your DEF head is failing. Installing the proper OEM 160599000138A005 Sanny Cummins DEF Head Unit restores the integrity of your emissions feedback loop, keeps your SCR system responsive, and helps your machine stay clean and compliant under any condition.






















































