Walker 350-34296 Oxygen Sensor - Downstream, Downstream Front or Downstream Left

Walker 350-34296 Oxygen Sensor Overview

Walker Products 350-34296 is a heated, specific-fit oxygen sensor engineered as an OE replacement for select Honda and Acura applications. It is built for the correct mounting position and ECU feedback requirements, helping restore accurate exhaust monitoring on vehicles such as the Honda Accord, CR-V, Civic, Pilot, and Acura MDX.

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors for direct replacement use. The 350-34296 follows the application-specific fitment approach needed for downstream oxygen sensor service on modern emissions systems.

Key Features

• Heated oxygen sensor for faster operating response
• Specific fit design for the listed downstream positions
• 4-wire configuration with female connector
• Threaded mounting type with 18.0 mm thread diameter
• 11.34 in. wiring harness length and 14.88 in. overall length
• Radiused polygon connector shape for application-specific connection
• Fits select Honda Accord, CR-V, Civic, Pilot, Ridgeline, and Acura MDX, RLX, TLX, RDX, ILX, Crosstour, NSX, and HR-V applications

Detailed Description

Walker Products 350-34296 oxygen sensor is designed for downstream service where the ECU depends on accurate exhaust-gas feedback to monitor catalyst and emissions performance. This part number is built for specific vehicle positions, including downstream, downstream front, and downstream left applications listed in the fitment data. For drivers searching for a Honda Accord downstream oxygen sensor, Honda CR-V bank 1 sensor 2 replacement, or an Acura MDX B2S2 oxygen sensor, this part number provides an OE-style replacement path.

As part of the Walker Products Aftermarket line, this sensor reflects the brand’s long-running focus on engine management components and application-specific sensor replacement. The 350-34296 is intended for vehicles that require a heated, threaded oxygen sensor with the correct connector style and harness length for proper installation and ECU communication.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Poor fuel economy caused by inaccurate exhaust feedback
• Rough engine operation tied to emissions sensor faults
• Elevated exhaust emissions from a failing downstream sensor
• Stored ECU fault codes for the affected sensor circuit

Installation Notes and Tips

Verify the exact position before ordering, since this part is listed for downstream, downstream front, and downstream left applications depending on vehicle and engine configuration. Inspect the sensor wiring harness and connector for heat damage, corrosion, or physical wear before installation. Confirm thread size, connector shape, and harness routing against the original sensor to ensure proper fit on the Honda Accord, Honda CR-V, Honda Civic, Acura MDX, and related applications.

Quality Assurance

Walker Products manufactures engine management and oxygen sensor components as OE-replacement parts for specific applications. The company is ISO 9001/TS 16949 certified and has supplied automotive sensor and fuel system components since 1946.