Walker 350-34318 Oxygen Sensor

Walker Oxygen Sensor for Hyundai and Kia

Walker Products 350-34318 is a heated, specific-fit oxygen sensor engineered as an OE-style replacement for select Hyundai and Kia applications. It is built for the correct mounting position and ECU feedback requirements, making it a direct choice for diagnosing and replacing a failing downstream or upstream sensor.

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors for precise application fitment. The 350-34318 follows that approach with a threaded, female-connector design and vehicle-specific harness length for the listed Hyundai Veracruz, Azera, Genesis, Entourage, Sonata, Santa Fe, and Kia Sedona, Amanti, Sorento applications.

Key Features

• Heated oxygen sensor for faster operating response
• Specific-fit design for the listed Hyundai and Kia applications
• 4-wire configuration with 22-gauge wiring
• Female connector with radiused polygon shape
• Threaded mounting with 18.0 mm thread diameter
• Overall length: 30.63 in.; wiring harness length: 27.09 in.
• Walker Products Aftermarket part number 350-34318

Detailed Description

Walker Products 350-34318 is an emission control oxygen sensor designed to replace the original sensor on select Hyundai and Kia vehicles. It is manufactured for the specified application and position so the ECU receives the expected diagnostic feedback. This matters on vehicles such as the Hyundai Sonata, Hyundai Veracruz, Kia Sedona, and Kia Sorento, where the sensor location must match the vehicle’s upstream or downstream requirement.

This part number, 350-34318, is a practical option when the original sensor has aged, the wiring or connector has been damaged, or the engine management system has stored a fault code related to oxygen sensor performance. Walker Products Aftermarket has supplied engine management components since 1946, and this sensor reflects that OE-replacement focus.

What It Helps Address

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

Installation Notes and Fitment

• Fits 2007-2012 Hyundai Veracruz, downstream rear
• Fits 2006-2011 Hyundai Azera, downstream rear
• Fits 2009-2011 Hyundai Genesis, upstream right
• Fits 2009-2010 Hyundai Entourage, downstream rear
• Fits 2006-2010 Hyundai Sonata, downstream rear
• Fits 2006-2010 Kia Sedona, downstream rear
• Fits 2007-2009 Hyundai Santa Fe, downstream rear
• Fits 2007-2009 Kia Amanti, downstream rear
• Fits 2007-2009 Kia Sorento, downstream front
• Fits 2007-2008 Hyundai Entourage, downstream rear
• Fits 2006 Kia Sedona, upstream front

Install the sensor in the exact position listed for the vehicle. Verify the connector, harness routing, and sensor location before installation, and inspect the wiring harness and connector for physical damage that could shorten service life. This part cross-references Walker Products Aftermarket 350-34318 for the same application.

Quality Assurance

Walker Products manufactures engine management and oxygen sensor components as OE-replacement parts for specific vehicle applications. The brand’s ISO 9001/TS 16949 certification supports controlled manufacturing and application-specific fitment for the listed Hyundai and Kia models.