✨ Item Features ✨
✅ NOx Nitrogen Oxide Detection Sensor Assembly with Integrated Control Module
✅ Core Interchange Part Number: 55496784, A2C15955100-01, SNS498
✅ Premium corrosion-resistant sensing probe, maintains stable detection under sustained high temperature, outstanding heat resistance and anti-corrosion property
✅ Rugged textured plastic control module housing, built with dustproof, waterproof & anti-electromagnetic interference construction for harsh undercarriage operating conditions
✅ Durable protected wiring harness, effectively resists ageing, cracking and abrasion when working near high-temperature vehicle assemblies
✅ Pre-calibrated precision sensing chip, transmits real-time NOx concentration data to vehicle ECU, regulates SCR operation to satisfy vehicle running requirements
✅ Accurate pin configuration plug-and-play connector, direct fitting without wire modification or extra programming work
✅ Standard mounting holes and outer dimensions, matches mounting position precisely without cutting, drilling or extra alteration
✅ Undergoes rigorous ageing cycles, high-low temperature testing and signal calibration before shipment for consistent measuring accuracy
✅ Helps resolve common faults: NOx related trouble codes, dashboard warning lamp activation, abnormal SCR fluid consumption, vehicle power limitation and emission inspection failure
🚗 Vehicle Fitment
We recommend verifying compatibility using your vehicle VIN code prior to checkout.
Position: Post SCR NOx Sensor POSN1 Gen3.2
• For Opel Insignia B 2.0 CDTi Diesel 2017–2022
• For Vauxhall Insignia B 2.0 CDTi Diesel 2017–2022
⚠️ Only suitable for vehicles requiring part number 55496784. Not interchangeable with NOx sensors of other part codes, different engine variants or alternate mounting locations. Confirm part number, engine specification and vehicle model before ordering.
📦 Package Included
1 Pc Complete NOx Nitrogen Oxide Detection Sensor Assembly (55496784 / A2C15955100-01 / SNS498)
This NOx Sensor is POSN1 (Upstream / Pre-SCR) sensor, mounted on exhaust pipe before SCR catalyst.
Not the downstream POSN2 sensor, two sensors have different part numbers and cannot be interchanged.
⚠️ Important Attention
• Carefully cross-check interchange part number, engine specification and installation position before purchase to avoid mismatched items.
• Installation by a qualified professional auto technician is highly recommended; Allow sufficient cooling time for hot vehicle assemblies before disassembly to prevent burns.
• Inspect thread sealing washers and cable routing during replacement; replace aged sealing components together for better tightness.
• Erase relevant fault codes and complete road test after fitting to confirm stable sensor signal and no active dashboard alerts.
• Minor differences in housing surface appearance may exist between different production batches; mounting bolts and sealing gaskets are not included inside package.
• Do not bend or strike the sensing probe forcibly during installation, internal precision components may be damaged and cause detection malfunction.
📌 Main Image Selling Points (For product picture layout reference)
NOx Nitrogen Oxide Sensor
Part No:55496784 / A2C15955100-01 / SNS498
For Opel Insignia B / Vauxhall Insignia B 2.0 CDTi 2017-2022
POSN1 Gen3.2 Post SCR NOx Sensor
Precision Calibrated | Stable Signal Output
Plug & Play Installation
Buy With Confidence | Strict Factory Calibration Test | Fast Shipment
