Walker 350-34471 Oxygen Sensor - Downstream or Upstream

Walker 350-34471 Oxygen Sensor Overview

Walker Products 350-34471 is a heated oxygen sensor built as a specific-fit OE replacement for select Kia and Hyundai applications. It is engineered for the correct mounting position and ECU feedback on downstream and upstream locations, helping maintain accurate exhaust monitoring on covered vehicles.

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors for direct replacement use. The 350-34471 follows the application-specific approach used across the Walker Products line, with fitment matched to the vehicle position and connector style required by the original system.

Key Features

• Heated oxygen sensor for faster operating temperature and signal response
• Specific-fit design for direct replacement applications
• 4-wire configuration with male connector
• Threaded mounting type 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
• Fits downstream and upstream positions on listed Kia and Hyundai models

Vehicle Fitment

• Fits 2021-2024 Kia Soul, downstream.
• Fits 2017-2020 Kia Soul, downstream; B1S2; OE replacement.
• Fits 2016-2017 Kia Rondo, downstream; OE replacement.
• Fits 2010-2011 Kia Soul, upstream; Bank 1 Sensor 1.
• Fits 2010-2011 Kia Soul, upstream; front oxygen sensor.
• Fits 2019-2021 Hyundai Veloster, downstream; bank 1 sensor 2 on specific vehicle models.
• Fits 2018-2020 Hyundai Elantra GT, downstream; bank 1 sensor 2 on specific vehicle models.
• Fits 2017-2019 Hyundai Elantra, downstream; bank 1 sensor 2 on specific vehicle models.

Detailed Description

This Walker oxygen sensor is designed for emissions control service on select Kia Soul, Kia Rondo, Hyundai Veloster, Hyundai Elantra GT, and Hyundai Elantra models. The heated sensor design supports accurate exhaust feedback to the ECU, while the specific-fit construction helps match the original sensor location, connector, and threaded mounting requirements. Part number 350-34471 is a practical choice when replacing a failed downstream or upstream sensor on the listed applications.

Walker Products 350-34471 is part of the Walker Products Aftermarket engine management and oxygen/air-fuel sensor line, which is built around OE-style replacement fitment for defined vehicle applications. This part cross-references Bosch (e.g., 15717) for the same application.

Common Issues This Sensor May Address

• Check engine light or malfunction indicator light related to oxygen sensor performance
• Poor engine operation caused by incorrect exhaust feedback
• Increased fuel consumption from inaccurate air-fuel monitoring
• Higher exhaust emissions from a degraded sensor signal
• Stored ECU fault codes tied to the affected sensor circuit

Installation Notes and Tips

Confirm the vehicle position before installation, since this part is used in both downstream and upstream locations depending on application. Inspect the sensor wiring harness and connector for damage before replacement, and verify the threaded mounting area is clean and undamaged. For best results, match the connector shape, wire count, and sensor location to the original unit on the vehicle.

Quality Assurance

Walker Products is an automotive ISO 9001/TS 16949 certified company with a long history in engine management components. The 350-34471 is manufactured as an OE replacement sensor for the specified applications and is backed by Walker Products’ established manufacturing and catalog support standards.