Walker 350-34632 Oxygen Sensor - Downstream or Downstream Front

Walker 350-34632 Oxygen Sensor Overview

Walker Products 350-34632 is a heated oxygen sensor built as a specific-fit OE replacement for select Acura and Honda applications. It is engineered to deliver the ECU feedback needed for downstream monitoring on vehicles such as the Acura ILX, Acura MDX, Acura TLX, Acura RDX, Honda Pilot, Honda Accord, and Acura TSX.

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors for direct application fitment, and this part number is matched to the required mounting position and connector style for the listed vehicles.

Key Features

• Heated oxygen sensor for downstream monitoring
• Specific-fit design for the listed vehicle applications
• 4-wire configuration with 22-gauge wiring
• Female connector with radiused polygon shape
• Threaded mounting type with 18.0 mm thread diameter
• Wiring harness length: 6.42 in.
• Overall length: 9.96 in.
• Walker Products part number 350-34632

Detailed Description

The Walker Products 350-34632 oxygen sensor is built for direct replacement in downstream positions where accurate exhaust feedback is required by the ECU. This heated sensor is specified for select 2008-2022 Acura and Honda models, including downstream and downstream front locations depending on application. It is a practical choice for drivers addressing a failed sensor on an Acura ILX, Acura MDX, Acura TLX, Acura RDX, Honda Pilot, Honda Accord, or Acura TSX.

Walker Products Aftermarket develops engine management sensors as OE-style replacements, with application-specific fitment, connector design, and sensor placement matched to the vehicle. The 350-34632 part number is intended for the exact downstream sensor position listed in the fitment data, helping maintain proper ECU monitoring on the covered vehicles.

What This Sensor Helps Address

• Check engine light related to oxygen sensor faults
• Poor engine performance caused by incorrect exhaust feedback
• Increased fuel consumption from inaccurate sensor readings
• Higher exhaust emissions from a failing downstream sensor
• Stored ECU fault codes tied to the affected sensor circuit

Installation Notes and Tips

Confirm the vehicle year, make, model, and sensor position before ordering. This part is listed for downstream and downstream front locations only, so match the original sensor placement exactly. Inspect the sensor wiring harness and connector for physical damage before installation, since damaged wiring can shorten sensor life and affect operation. The threaded mounting design and female connector should be verified against the original unit on the vehicle.

• Fits 2022 Acura ILX, downstream
• Fits 2016-2021 Acura ILX, downstream; fits downstream bank 1 sensor 2 on specific vehicle models
• Fits 2016-2020 Acura MDX, downstream front; B2S2
• Fits 2016-2020 Acura TLX, downstream front; downstream front oxygen sensor position B2S2
• Fits 2016-2018 Acura RDX, downstream front; B2S2
• Fits 2016-2018 Honda Pilot, downstream front
• Fits 2009-2014 Acura TSX, downstream; fits downstream bank 1 sensor 2 on specific vehicle models
• Fits 2008-2012 Honda Accord, downstream; fits downstream bank 1 sensor 2 on specific vehicle models

Quality Assurance

Walker Products has supplied engine management and fuel system components since 1946 and operates as an Automotive ISO9001/TS 16949 certified company. The Walker Products Aftermarket line is built around application-specific replacement parts for modern diagnostic systems, including oxygen sensors such as part number 350-34632.