Walker 350-34999 Oxygen Sensor - Downstream Right

OE Replacement Oxygen Sensor for Genesis

Walker OE Replacement oxygen sensor 350-34999 is a direct-fit, heated narrow-band sensor built for specific vehicle applications. It is engineered to provide the ECU with the feedback needed for proper fuel control and emissions monitoring on select Genesis G80 and G90 models.

Key Features

• Heated narrow-band oxygen sensor for precise exhaust feedback
• Specific-fit design for the correct mounting position
• 4-wire configuration with blade terminals and square connector
• Threaded M18 x 1.5 mounting with 22 mm wrench size
• Wiring harness length: 350 mm; overall length: 375 mm
• Downstream right application for select Genesis vehicles

Product Details

Walker Products OE Replacement sensors are built for application-specific fitment and diagnostic performance. Part number 350-34999 is intended for downstream right placement on 2017-2021 Genesis G90 and 2017-2020 Genesis G80 models. For shoppers searching for a Genesis G90 downstream right oxygen sensor or a Genesis G80 OE replacement O2 sensor, this part matches the listed vehicle position and connector style.

Walker’s OE Replacement line focuses on direct-fit engine management components for vehicles worldwide. This oxygen sensor is designed to deliver the ECU feedback required for emissions and fuel-system control, helping maintain proper sensor response in the affected exhaust location. The 350-34999 part number is also useful when replacing a failed downstream sensor on Genesis G80 or Genesis G90 applications.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Poor fuel economy caused by inaccurate exhaust feedback
• Rough engine operation tied to sensor signal issues
• Elevated exhaust emissions from a failing downstream sensor
• Fault codes stored in the ECU for the affected sensor circuit

Installation Notes

Verify the downstream right position, connector shape, terminal count, and thread size before installation. Inspect the sensor wiring harness and connector for heat damage, corrosion, or physical wear, since damaged wiring can shorten sensor life and affect operation. Confirm the vehicle application against the listed fitment for 2017-2021 Genesis G90 and 2017-2020 Genesis G80 models.

Quality Assurance

Walker Products has produced engine management and fuel-system components since 1946 and operates as an ISO 9001/TS 16949 certified company. The OE Replacement line is built around application-specific fitment and diagnostic feedback requirements for modern vehicle systems.