Walker 350-35046 Oxygen Sensor

Walker 350-35046 Oxygen Sensor Overview

Walker Products 350-35046 is a heated oxygen sensor built as a specific-fit OE replacement for select upstream applications. It is engineered to provide the ECU with the feedback needed for fuel control and emissions monitoring on vehicles such as Ford Fusion, Ford Explorer, Hyundai Palisade, Kia Telluride, and Audi R8.

When an oxygen sensor fails, the engine may run rich or lean, fuel economy can drop, emissions can rise, and the malfunction indicator light may turn on. This Walker Products Aftermarket sensor is built for the listed position and application, helping restore proper exhaust feedback at the ECU.

Key Features

• Heated oxygen sensor for faster operating response
• Specific-fit design for the listed vehicle and sensor position
• 5-wire configuration with male connector
• Threaded mounting with 18.0 mm thread diameter
• Wiring harness length: 19.21 in.; overall length: 22.76 in.
• Radiused polygon connector shape for application-specific fitment
• Walker Products Aftermarket part number 350-35046

Detailed Description

Walker Products Engine Management and Oxygen/Air-Fuel sensors are developed as OE-style replacements for many vehicles worldwide. Part number 350-35046 is manufactured for the specified application and sensor location so it can deliver the diagnostic feedback expected by the ECU. The Walker Products Aftermarket line focuses on application-specific engine management components for modern emissions systems.

This oxygen sensor is listed across a wide range of upstream positions, including Fits 2010-2020 Ford Fusion, upstream; Fits 2015-2019 Ford Explorer, upstream front and upstream rear; Fits 2022-2025 Hyundai Palisade, upstream front, upstream rear, and upstream right; Fits 2021-2024 Kia Telluride, upstream front; and Fits 2017-2023 Audi R8, upstream right. It is also listed for select Ford, Lincoln, Kia, Hyundai, Volkswagen, Porsche, and Jaguar applications where the correct upstream sensor position is required.

This part cross-references no additional part numbers in the provided data.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Rough running caused by incorrect air-fuel feedback
• Reduced fuel economy from inaccurate exhaust readings
• Higher exhaust emissions from a failing sensor
• Fault codes stored in the ECU for the affected sensor circuit

Installation Notes and Tips

Confirm the exact year, make, model, and sensor position before ordering. This part is a specific-fit threaded sensor, so match the connector style, wire count, harness length, and thread diameter to the original unit. Inspect the sensor wiring harness and connector for heat damage, abrasion, or corrosion before installation, since physical damage can shorten sensor life.

For best results, verify whether the vehicle requires an upstream left, upstream right, upstream front, upstream rear, or standard upstream position. On vehicles with bank and sensor designations such as B1S1 or B2S1, match the original location exactly.

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 350-35046 oxygen sensor is built to support the diagnostic and emissions feedback expected from the original equipment application.