The 51154080030 is a heavy-duty, high-precision Nitrogen Oxide (NOx) Sensor (Aftermarket Replacement) engineered specifically for MAN Euro 6 commercial vehicles. Positioned After the Catalyst (Downstream), it accurately measures the final NOx concentration emitted from the exhaust to verify the overall efficiency of the SCR (Selective Catalytic Reduction) system. Featuring a precise 460mm cable length, this sensor ensures a direct physical fitment, helping to meet strict environmental standards and preventing costly Limp Mode downtime.

🌟 Premium Engineering Features:

• Proprietary Core Chip: Equipped with an in-house developed sensing chip, ensuring strict quality control from the source to the final product.

• Superior Accuracy & Stability: Delivers highly stable signals with strong anti-interference capabilities, guaranteeing precise NOx readings even in the harshest exhaust environments.

• Ultra-Fast Response: Instantly communicates with the vehicle’s ECU to regulate urea (AdBlue) injection rapidly, preventing emission-related derating.

📊 Comprehensive Part Number Cross Reference

(Data verified – 100% Interchangeable with the following superseded/alternate numbers)

🚛 Fits Applications (Engine & Vehicle)

(Please verify your exact OE part number before purchasing)

👨‍🔧 Tech Notes & Installation Guide

• ⚠️ Critical Fitment Check (OE Number & Cable Length):

  Commercial vehicle exhaust layouts vary significantly. This specific Downstream sensor features a 460mm cable. To ensure correct fitment and ECU communication, you MUST verify that your original sensor’s OE part number matches 51154080030 or Continental A3C00370700 before purchasing.

• ✅ Clear Fault Codes First:

  After installation, you MUST use an OBD diagnostic tool to clear all previous SCR/NOx fault codes stored in the vehicle’s ECU. Failing to perform this reset will keep the truck in Limp Mode.

🔍 Explore More Heavy Duty Parts:

• Need the matching pair? Add the upstream 51154080031 NOx Sensor  to your cart along with this unit to unlock an automatic bundle discount at checkout.

• Browse our complete selection of NOx Sensors.

⚖️ Legal Disclaimer

Part numbers, OE numbers, and brand names (e.g., MAN, Continental) mentioned above are for reference and identification purposes only. This product is a compatible aftermarket replacement part and is NOT manufactured, sponsored, or affiliated with the original equipment manufacturers.