Walker 350-34344 Oxygen Sensor - Upstream

Walker 350-34344 Oxygen Sensor Overview

Walker Products 350-34344 is a heated upstream oxygen sensor built as a specific-fit OE replacement for select Hyundai and Kia applications. It is engineered to provide the ECU with the feedback needed for accurate fuel control and emissions monitoring.

For drivers searching for an upstream oxygen sensor for 2010-2012 Hyundai Elantra or 2010-2011 Kia Soul, this Walker Products Aftermarket sensor is matched to the application and mounting position.

Key Features

• Heated oxygen sensor for faster operating response
• Specific-fit design for the listed upstream positions
• 4-wire configuration with 20-gauge wiring
• 18.23 in. wiring harness length
• Threaded mounting with 18.0 mm thread diameter
• Radiused polygon male connector for application-specific connection
• Overall length: 21.77 in.

Detailed Description

Walker Products 350-34344 is part of the Walker Products Aftermarket engine management line, focused on replacement sensors for vehicle-specific fitment. This oxygen sensor is designed for upstream use on select Hyundai Elantra, Hyundai Tiburon, and Kia Soul models, including Bank 1 Sensor 1 applications where specified. It is intended to deliver the diagnostic feedback the ECU expects from the original sensor location.

Walker Products has supplied engine management and oxygen/air-fuel sensors for decades, with manufacturing processes aligned to automotive ISO 9001/TS 16949 standards. The 350-34344 is built for the listed application and connector style, making it a direct-fit choice for repair work on emissions and fuel-control systems.

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

What It Helps Address

• Check engine light related to upstream oxygen sensor performance
• Poor engine operation caused by incorrect air-fuel feedback
• Higher fuel consumption from inaccurate exhaust oxygen readings
• Increased exhaust emissions from a failing sensor
• Fault codes stored in the ECU for the affected sensor circuit

Installation Notes and Tips

• Verify the vehicle is one of the listed applications before ordering.
• Confirm the upstream position and Bank 1 Sensor 1 location where applicable.
• Inspect the sensor wiring harness and connector for heat damage, abrasion, or corrosion before installation.
• Check the exhaust bung threads and mounting surface for damage prior to threading in the sensor.
• Clear stored fault codes after repair and confirm the ECU completes its readiness checks.

Quality Assurance

Walker Products manufactures this oxygen sensor as an OE-style replacement for the specified vehicle applications. The brand’s engine management sensor line is produced under automotive quality systems used for modern emissions and diagnostic requirements.

• Fits 2010-2012 Hyundai Elantra, Upstream
• Fits 2009 Hyundai Elantra, Upstream
• Fits 2007-2008 Hyundai Tiburon, Upstream
• Fits 2010-2011 Kia Soul, Upstream