Industrial W10B16A-O2SENSOR-2X-UPSTREAM-DOWNSTREAM Oxygen Sensor

Description:

The 2x Upstream & Downstream Oxygen (O2) Sensors are used in automotive engine management systems to monitor exhaust gas oxygen levels before and after the catalytic converter for precise air-fuel ratio control and emissions regulation. Commonly installed in gasoline and diesel vehicles equipped with OBD-II emission systems where real-time feedback is required for fuel mixture adjustment and catalytic converter efficiency monitoring. Automotive technicians, diagnostic specialists, and repair shops use these sensors for emissions system repair, engine performance restoration, and replacement of failed or degraded oxygen sensors.

Applications:

Upstream and downstream O2 sensors are commonly used in automotive exhaust systems including fuel injection control systems, catalytic converter monitoring, emissions compliance systems, and engine management systems across passenger vehicles, trucks, and SUVs where accurate oxygen sensing is required to optimize fuel efficiency, reduce emissions, and maintain proper engine combustion performance.

Technical Specifications:

• Manufacturer: OEM / aftermarket automotive sensor
• Model / Part number: 2x upstream & downstream O2 sensors (vehicle-specific fitment)
• Product type: Zirconia oxygen sensor
• Sensor locations: Upstream (pre-catalytic converter) / Downstream (post-catalytic converter)
• Operating temperature: Up to ~900°C exhaust environment
• Voltage output: 0.1–0.9 V switching signal (narrowband typical)
• Heater type: Integrated electric heater element (fast warm-up)
• Thread size: Typically M18 x 1.5 (application dependent)
• Material: Stainless steel body with ceramic sensing element
• Function: Air-fuel ratio feedback and catalytic converter efficiency monitoring
• Electrical connection: Multi-pin sealed automotive connector
• Application environment: Automotive exhaust and emissions control systems

Common Replacements:

• Denso OEM equivalent upstream/downstream oxygen sensor set
• Bosch automotive O2 sensor pair (direct-fit replacement)
• NTK / NGK oxygen sensor kit for vehicle-specific application