Walker 350-34698 Oxygen Sensor - Downstream, Downstream Left or Downstream Right

Walker 350-34698 Oxygen Sensor Overview

Walker Products 350-34698 is a heated, specific-fit oxygen sensor built for downstream applications on select Nissan, INFINITI, and Chevrolet vehicles. It is engineered as an OE-style replacement to deliver the diagnostic feedback the ECU expects, helping restore proper exhaust monitoring on affected applications.

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors for precise application fitment. The 350-34698 follows that approach with a threaded mounting design, 4-wire configuration, and a radiused polygon connector for direct replacement use on listed vehicles.

Key Features

• Heated oxygen sensor for downstream exhaust monitoring
• Specific fit for listed Nissan, INFINITI, and Chevrolet applications
• 4-wire design with 20-gauge wiring
• Threaded mounting type with 18.0 mm thread diameter
• Connector shape: radiused polygon, male connector
• Wiring harness length: 9.37 in.; overall length: 12.91 in.
• Walker Products part number 350-34698

Detailed Description

This Walker oxygen sensor is intended for downstream positions where the ECU relies on accurate exhaust feedback to monitor catalyst and emissions performance. It is listed for 2013-2019 Nissan Frontier, 2014-2017 INFINITI QX60, 2014-2017 Nissan Rogue, 2015 Nissan Pathfinder, 2015 Nissan Xterra, 2016 Nissan Murano, 2018 Nissan Rogue, 2019-2020 Nissan Rogue, and 2006 Chevrolet Avalanche 1500 and Suburban 1500 applications. For shoppers searching for a downstream oxygen sensor for Nissan Rogue B1S2, a Nissan Frontier downstream sensor, or a replacement oxygen sensor for a 2006 Chevrolet Suburban 1500, this part number 350-34698 matches the listed positions and fitment notes.

Walker Products has supplied engine management components since 1946 and builds these sensors for application-specific fitment and ECU feedback requirements. This part cross-references standard OE-style replacement needs for the same application.

What It Helps Address

• Illuminated malfunction indicator light related to downstream oxygen sensor faults
• Poor engine performance caused by incorrect exhaust feedback
• Increased fuel consumption from inaccurate sensor readings
• Higher exhaust emissions from a failed heated oxygen sensor
• Stored ECU fault codes tied to the affected sensor circuit

Installation Notes and Tips

Confirm the exact year, make, model, and downstream position before ordering. This part is listed for downstream, downstream left, and downstream right applications depending on vehicle and engine configuration. Inspect the sensor wiring harness and connector for physical damage before installation, since damaged wiring can shorten sensor life and affect operation. Verify thread diameter and connector style against the original sensor before replacement.

Quality Assurance

Walker Products manufactures engine management sensors as OE-replacement components for specific applications and fitment positions. The company is ISO 9001/TS 16949 certified, supporting consistent production and application accuracy for the 350-34698 oxygen sensor.