Walker 350-34302 Oxygen Sensor

Walker 350-34302 Oxygen Sensor Overview

Walker Products 350-34302 is a heated oxygen sensor built as a direct-fit OE-style replacement for specific Hyundai and Kia applications. It is engineered for the correct mounting position, connector style, and ECU feedback needed for downstream rear and upstream sensor locations.

For Hyundai Sonata, Hyundai XG350, Hyundai XG300, and Kia Amanti applications, this sensor supports accurate exhaust monitoring and proper engine management response when the original sensor is worn or damaged.

Key Features

• Heated oxygen sensor for faster operating temperature and stable signal output
• Specific-fit design for the listed Hyundai and Kia applications
• 4-wire configuration with male connector
• Threaded mounting type with 18.0 mm thread diameter
• Wiring harness length: 15.28 in.; overall length: 18.82 in.
• Radiused polygon connector shape for application-specific fitment
• Walker Products Aftermarket line engineered for engine management and oxygen/air-fuel sensor replacement

Detailed Description

Walker Products 350-34302 is designed for vehicles that require a direct replacement oxygen sensor in downstream rear or upstream positions. It is listed for 2004-2006 Kia Amanti downstream rear, 2002-2005 Hyundai XG350 downstream rear, 2001 Hyundai XG300 upstream rear and upstream front, and 1999-2001 Hyundai Sonata upstream Bank 1 Sensor 1 applications. This part number is also referenced for 2003 Hyundai XG350 variants with downstream rear fitment notes tied to production date.

The Walker Products Aftermarket sensor line is developed as an OE replacement for many vehicles worldwide, with application-specific fitment and ECU feedback requirements in mind. If the original sensor has failed, the vehicle may show poor running behavior, higher fuel use, increased exhaust emissions, or a malfunction indicator light. For diagnosis, inspect the sensor, wiring harness, and connector for physical damage before replacement.

What It Helps Address

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

Installation Notes and Tips

Confirm the exact position before installation: downstream rear, upstream, upstream rear, or upstream front, depending on the vehicle. This Walker 350-34302 oxygen sensor uses a threaded mount and application-specific connector, so match the original sensor layout, harness length, and connector orientation before replacement. For Hyundai Sonata, Hyundai XG350, and Kia Amanti fitments, verify emissions configuration and production date notes where listed.

Quality Assurance

Walker Products has manufactured engine management and oxygen/air-fuel sensors since 1946 and operates as an Automotive ISO 9001/TS 16949 certified company. The 350-34302 is built to support the diagnostic feedback expected by the ECU in the listed applications.