Walker 350-34014 Oxygen Sensor

OE-Style Oxygen Sensor for Kia and Hyundai

Walker Products 350-34014 is a heated, specific-fit oxygen sensor engineered as an OE replacement for select Kia and Hyundai vehicles. It is built for the correct application and mounting position, helping the ECU receive the feedback it needs for accurate fuel control and emissions monitoring.

For drivers dealing with a check engine light, poor fuel economy, or elevated exhaust emissions, this Walker Products Aftermarket sensor provides a direct-fit replacement for the original unit. It is a practical choice for 2002-2012 Kia Rondo, Optima, Sportage, Magentis, and Hyundai Sonata, Santa Fe, Tucson, and Tiburon applications.

Key Features

• Walker Products Aftermarket oxygen sensor, part number 350-34014
• Heated sensor design for faster operating response
• Specific-fit construction for the listed vehicle applications
• 4-wire configuration with male connector
• Threaded mounting type with 18.0 mm thread diameter
• Wiring harness length: 15.67
• Overall length: 19.21
• Radiused polygon connector shape

Product Details

Walker Products Engine Management and Oxygen/Air-Fuel sensors are developed as OE replacement parts for a wide range of vehicles. This 350-34014 oxygen sensor is designed to match the required fitment position and provide the diagnostic feedback the ECU expects. Walker Products has supplied engine management and fuel system components since 1946 and operates as an ISO 9001/TS 16949 certified company.

Compatible With select Kia Optima, Kia Sportage, Kia Rondo, Kia Magentis, Hyundai Sonata, Hyundai Santa Fe, Hyundai Tucson, and Hyundai Tiburon models across the 2002-2012 model years. Use this part number 350-34014 when replacing a failed upstream or downstream sensor in the listed positions, including upstream front, upstream rear, downstream front, downstream rear, and upstream right applications where specified.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Poor fuel economy caused by incorrect exhaust feedback
• Rough engine operation from inaccurate air-fuel readings
• Elevated exhaust emissions from a failing sensor
• Fault codes stored in the ECU for sensor-related issues

Installation Notes

Verify the exact year, make, model, and sensor position before ordering. This part number 350-34014 is a threaded, specific-fit sensor, so connector style, harness length, and mounting location should be matched to the original unit. Inspect the sensor wiring harness and connector for damage before installation, since physical wear can shorten sensor life and affect operation.

For fitment-based searches, this oxygen sensor is listed for applications such as Fits 2004-2010 Kia Optima, Upstream Front; Fits 2005-2010 Kia Sportage, Downstream Rear; Fits 2003-2009 Hyundai Santa Fe, Upstream Front; and Fits 2005-2009 Hyundai Tucson, Downstream Front.

Quality Assurance

Walker Products manufactures engine management sensors to OE-style application standards and backs its product line with long-standing aftermarket experience. Part number 350-34014 is built for the specified vehicle fitment and sensor position to support proper ECU feedback and emissions system operation.