Walker 350-34480 Oxygen Sensor - Downstream

Walker 350-34480 Oxygen Sensor Overview

Walker Products 350-34480 is a heated oxygen sensor built as a specific-fit OE replacement for select Hyundai and Kia applications. It is engineered to provide the ECU with the exhaust feedback needed for proper fuel control and emissions monitoring.

Compatible with 2015 Hyundai Tucson downstream bank 1 sensor 2 and 2012-2013 Kia Soul downstream bank 1 sensor 2, this sensor is a direct-fit option for targeted repair work. The Walker Products Aftermarket line focuses on application-specific engine management and oxygen/air-fuel sensors for modern vehicle systems.

Key Features

• Part number: 350-34480
• Heated oxygen sensor design
• Specific fit for the listed downstream applications
• 4-wire configuration with 22-gauge wiring
• 16.26 in. wiring harness length
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon male connector
• Overall length: 19.8 in.

Detailed Description

Walker Products 350-34480 is engineered for downstream exhaust monitoring on select Hyundai Tucson and Kia Soul models. As an OE-style replacement sensor, it is built to deliver the diagnostic feedback the ECU expects from the affected location in the exhaust system. The heated design helps the sensor reach operating temperature quickly for stable signal output during normal driving conditions.

This part number is part of the Walker Products Aftermarket engine management sensor line, which is focused on application-specific fitment and vehicle-level compatibility. If the original sensor has failed, the vehicle may store fault codes and show drivability or emissions-related symptoms until the issue is corrected. Walker 350-34480 is intended for the exact downstream bank 1 sensor 2 positions listed below.

Vehicle Fitment

• Fits 2015 Hyundai Tucson, downstream bank 1 sensor 2.
• Fits 2012-2013 Kia Soul, downstream bank 1 sensor 2.

What It Helps Address

• Check engine light related to downstream oxygen sensor performance
• Stored ECU fault codes tied to exhaust feedback monitoring
• Poor fuel economy caused by inaccurate sensor input
• Elevated exhaust emissions from incorrect air-fuel control data
• Rough engine operation linked to a failing sensor signal

Installation Notes and Tips

Confirm the vehicle’s year, make, model, and sensor position before ordering. This part is specific fit, so it should be matched to the downstream bank 1 sensor 2 location shown in the fitment data. Inspect the sensor wiring harness and connector for heat damage, abrasion, or corrosion before installation, since damaged wiring can shorten sensor life and affect readings.

For best results, verify thread size, connector shape, and harness routing against the original sensor before replacement. The 350-34480 part number should be checked against the existing unit and the vehicle’s diagnostic trouble codes during diagnosis.

Quality Assurance

Walker Products has supplied engine management and fuel system components since 1946 and operates as an ISO 9001/TS 16949 certified company. The 350-34480 oxygen sensor is manufactured for the specified application and fitment position to support proper ECU feedback on the listed vehicles.