In Stock SKU: HE-20074

Mercedes-Engined Tadano NOx Sensor Emulator (SCR Signal Simulation)

The Mercedes-Engined Tadano NOx Sensor Emulator permanently resolves NOx sensor fault codes and engine power derate on Mercedes-powered Tadano cranes, without replacing the sensor.

250 $
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Tadano truck cranes fitted with Mercedes diesel engines operate in a uniquely demanding duty cycle — sustained idling during rigging, repeated heavy-lift cycles and variable loads across the full power band. This pattern accelerates soot fouling and thermal fatigue of the SCR system's NOx sensor well ahead of schedule. Once the sensor begins producing erratic readings, the Mercedes engine control unit stores permanent fault codes, engages a power derate and prevents the crane from operating at full rated capacity. A crane standing idle on a contracted lift job means schedule delays and direct financial loss for the operator. The Mercedes-Engined Tadano NOx Sensor Emulator provides a permanent electronic fix without waiting for an expensive OEM sensor to arrive.

How Does It Work?

The emulator plugs directly into the NOx sensor connector on the Mercedes engine — no wire cutting or soldering is needed at any point. Once active, it continuously simulates the upstream and downstream SCR NOx concentration values, sensor heater circuit status and supply voltage reference signals, all within the valid range the ECU expects. With a steady flow of plausible data, the control unit generates no NOx-related fault codes and does not impose a power restriction.

NOx sensor fault codes and panel warning lights are permanently cleared
Engine power and torque derate is prevented — full crane lifting performance is maintained
The high cost of sourcing and fitting an OEM Mercedes NOx sensor is eliminated
Crane downtime and contracted-job delays caused by sensor failures are avoided
Stable operation is achieved through extended idle and variable-load duty cycles
Recurring sensor-related unplanned stoppages and their operational knock-on costs are ended

Frequently Asked Questions

Which Tadano models and Mercedes engines does this emulator support?

The emulator is designed for Tadano truck cranes equipped with Mercedes OM-series diesel engines. Confirm your engine type and ECU variant via an OBD diagnostic tool or your service documentation before ordering.

Can installation be done on site and how long does it take?

Yes, on-site installation is straightforward. The emulator plugs into the NOx sensor socket with no wire cutting or soldering required and is typically operational within a few minutes.

If I remove the emulator later, does the crane return to its original configuration?

Yes. The emulator is fully reversible — unplugging it restores the engine control unit to its original sensor configuration. No permanent modification to the vehicle is made.

What do I need to know about warranty and legal use?

Check the product page for warranty terms. Interfering with an emissions control system may be regulated by local legislation; this product is supplied for off-road, testing and diagnostic purposes only and legal responsibility rests with the end user.