Walker 350-34161 Oxygen Sensor - Upstream

Walker 350-34161 Oxygen Sensor Overview

Walker Products 350-34161 is a heated oxygen sensor built as a specific-fit OE replacement for select Hyundai applications. It is engineered to provide the ECU with the exhaust feedback needed for accurate fuel control and emissions monitoring, including upstream and front sensor positions.

Compatible With 2010-2012 Hyundai Genesis Coupe, upstream and 2020 Hyundai Starex, front. This Walker Products Aftermarket oxygen sensor is designed around the application, connector style, and mounting position for direct replacement service.

Key Features

• Heated oxygen sensor for faster operating response
• Specific-fit design for the listed Hyundai applications
• 4-wire configuration with 20-gauge wiring
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon connector shape with male connector gender
• Wiring harness length: 16.26
• Overall length: 19.8

Detailed Description

Walker Products 350-34161 is part of the Walker Products Aftermarket engine management and oxygen/air-fuel sensor line, developed as an OE-style replacement for vehicles worldwide. For the 2010-2012 Hyundai Genesis Coupe, this sensor serves the upstream Bank 1 Sensor 1 position, and it also fits the 2020 Hyundai Starex front position. The part number 350-34161 is built to match the specified fitment, connector, and sensor configuration so the ECU receives the correct diagnostic feedback.

Walker Products has supplied engine management and fuel system components since 1946 and manufactures to Automotive ISO9001/TS 16949 standards. If the original sensor is failing, the vehicle may run rich or lean, consume more fuel, trigger higher exhaust emissions, or illuminate the malfunction indicator light. This part cross-references no listed alternate part numbers for the same application.

What This Sensor Can Help Address

• Check engine light related to oxygen sensor performance
• Poor fuel economy caused by incorrect air-fuel feedback
• Rough engine operation from inaccurate exhaust readings
• Elevated exhaust emissions from a failing upstream sensor
• Stored ECU fault codes tied to the affected sensor circuit

Installation Notes

Confirm the vehicle year, model, and sensor position before ordering. For the 2010-2012 Hyundai Genesis Coupe, install at the upstream Bank 1 Sensor 1 location; for the 2020 Hyundai Starex, install at the front position. Inspect the sensor wiring harness and connector for heat damage, abrasion, or corrosion before installation, since damaged wiring can shorten sensor life and affect signal quality.

Quality Assurance

Walker Products manufactures this oxygen sensor as a specific application replacement with OE-style fitment and ECU feedback requirements in mind. The brand’s ISO9001/TS 16949 manufacturing background supports consistent production control for engine management sensors.