New
The NOx sensor is a central component of exhaust aftertreatment. It consists of
a probe and a control unit, is integrated into the exhaust system as a complete unit,
and detects nitrogen oxides (NOx) in the exhaust flow. Its use ensures compliance
with strict emission standards such as Euro 5 and Euro 6.
Note: Due to the high technical complexity and the required measurement accuracy,
the use of replacement parts in OE quality is recommended.
Ampro NOx Sensor A1137332A Mercedes-Benz 24V | 5WK9 7332A | Truck
High-performance Ampro NOx sensor (A1137332A) for Mercedes-Benz commercial vehicles.
Measures nitrogen oxides in the exhaust line and supports precise control of the SCR catalyst (AdBlue) to meet Euro VI limits.
Designed for 24 V onboard systems, it delivers accurate signals to the ECU and stabilizes exhaust aftertreatment.
OE quality with a vibration-resistant housing, heat-resistant electronics, and corrosion-protected connectors – ideal for tough fleet use.
Precisely matched to the listed references, a reliable aftermarket replacement with long-lasting calibration.
Installation: remove the old unit, disconnect the plug, screw in and lock the new sensor; then clear fault codes and perform a short adaptation drive.
Delivery includes pre-assembled wiring harness.
Compatible OE/reference numbers: 5WK9 7332A.
24V-compatible (Euro VI)
• SCR/AdBlue-optimized, precise NOx measurement
• OE quality for Mercedes-Benz – Reference: 5WK9 7332A
• Vibration- and heat-resistant design
• Plug-and-Play: vehicle-specific connector
• Stable ECU feedback, fewer error messages
• Fast delivery, warranty included
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