Your heavy equipment’s emissions system depends on every sensor doing its job—and the DEF (Diesel Exhaust Fluid) head unit is one of the most critical pieces. For Sennebogen machines with Cummins ISL engines, the DEF Head Unit (OEM 185152, Tamerx part 4310-18-37) ensures your aftertreatment system gets the correct readings and dosing demands. When this component fails or drifts, you're looking at warning lights, derates, or non-compliance issues right when you need full performance.
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Measures DEF fluid level, temperature, and urea concentration and sends reliable data to the engine control module
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Controls precise DEF dosing into the exhaust stream to allow the SCR (Selective Catalytic Reduction) system to reduce NOx emissions
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Built to OEM 185152 tolerances, delivering drop-in compatibility with Sennebogen / Cummins ISL systems
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Helps prevent fault codes, emissions warnings, and engine derates triggered by errant or drifting sensor data
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Includes a 40-micron filter, helping protect downstream injectors and valves from contamination
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Engineered to tolerate vibration, thermal cycling, and exposure to the harsh chemistry of DEF
Don’t let a defective DEF head unit be the weak point in your emissions system. Installing the correct OEM 185152 DEF Head Unit for your Sennebogen Cummins ISL restores sensor accuracy, stabilizes SCR function, and reduces the risk of surprise faults or downtime. When your emissions depend on it, this is one component you can’t afford to compromise.























































































































































































































































































