Walker 350-34566 Oxygen Sensor

Walker 350-34566 Oxygen Sensor for Kia and Hyundai

Walker Products 350-34566 is a heated oxygen sensor built as an OE-style replacement for specific Kia and Hyundai applications. It is engineered for the correct fitment position and to provide the ECU with the feedback needed for proper fuel control and emissions monitoring.

Key Features

• Heated oxygen sensor with 4-wire design
• Specific-fit replacement for targeted Kia and Hyundai vehicles
• Threaded mounting with 18.0 mm thread diameter
• Radiused polygon male connector for application-specific connection
• Wiring harness length: 18.23 in.; overall length: 21.77 in.
• Walker Products Aftermarket line for engine management and oxygen sensor replacement

Application Details

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensor replacement parts engineered for direct application fit. Part number 350-34566 is made for specific upstream and downstream positions, including rear and front locations where listed, so the sensor matches the vehicle’s required exhaust-system feedback. This part number 350-34566 is used on Kia Optima, Kia Rondo, Hyundai Santa Fe, Hyundai XG350, Kia Amanti, Kia Sorento, Kia Sedona, and Kia Magentis applications shown in the fitment data.

What This Sensor Helps Address

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

Installation Notes and Tips

• Confirm the exact year, make, model, and sensor position before installation.
• Install only in the listed upstream or downstream location for the vehicle.
• Inspect the sensor wiring harness and connector for physical damage before replacement.
• Check the exhaust system and related wiring if the MIL remains on after replacement.
• Use the threaded mounting point and connector style specified for the application.

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 350-34566 oxygen sensor is manufactured for specific vehicle applications to deliver the diagnostic feedback expected by the ECU. This part cross-references no additional part numbers in the provided data.