Walker 350-64080 Oxygen Sensor

Walker 350-64080 Oxygen Sensor Overview

Walker Products 350-64080 is a heated oxygen sensor built as an OE-style replacement for specific Nissan and INFINITI applications. It is engineered for the correct fitment position and ECU feedback, helping maintain accurate air-fuel monitoring on vehicles such as the Nissan Altima, Frontier, Sentra, and Pathfinder.

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors for direct replacement use. The 350-64080 follows the application-specific design needed for upstream and downstream positions where the vehicle’s diagnostic system depends on precise sensor input.

Key Features

• Heated oxygen sensor for faster operating response
• Specific-fit design for targeted Nissan and INFINITI applications
• 4-wire configuration with female connector
• Threaded mounting type with 18.0 mm thread diameter
• Overall length: 15.87 in.; wiring harness length: 12.32 in.
• Radiused polygon connector shape for application-specific connection fit
• Walker Products 350-64080 for upstream and selected downstream positions

Detailed Description

This Walker oxygen sensor is designed to replace the original sensor on vehicles that rely on accurate exhaust oxygen feedback for fuel control and emissions monitoring. It is used in a wide range of Nissan and INFINITI models, including the Nissan NV1500, NV2500, NV3500, Versa, Sentra, Altima, Frontier, Murano, Pathfinder, and the INFINITI QX60, Q70, and G37. The part number 350-64080 is also listed for select Chevrolet City Express applications.

Because the ECU monitors sensor performance closely, a worn sensor can contribute to poor engine operation, higher fuel use, increased exhaust emissions, or a malfunction indicator light. This replacement is built for the specified position so the vehicle receives the diagnostic feedback it expects.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Rough running caused by inaccurate air-fuel readings
• Increased fuel consumption from a failing upstream sensor
• Elevated exhaust emissions from degraded sensor response
• Fault codes stored in the ECU for the affected sensor circuit

Installation Notes and Fitment

Fits 2012-2021 Nissan NV1500, upstream right and upstream left. Fits 2012-2021 Nissan NV2500, upstream right and upstream left. Fits 2012-2021 Nissan NV3500, upstream right and upstream left. Fits 2013-2021 Nissan NV200, upstream. Fits 2021 Nissan Pathfinder, downstream right. Fits 2013-2019 Nissan Frontier, upstream. Fits 2018-2019 Nissan Note, upstream. Fits 2014-2017 Nissan Sentra, upstream. Fits 2013-2015 Nissan Altima, upstream. Fits 2014-2017 INFINITI QX60, upstream. Fits 2015 INFINITI Q40, upstream right and upstream left. Fits 2015 INFINITI Q60, upstream right and upstream left. Fits 2011-2014 Nissan 370Z, upstream right and upstream left.

Verify the sensor position, emissions package, and connector style before installation. This part uses a threaded mount and a 4-wire heated design, so matching the original application is important for proper ECU operation. For Nissan Altima oxygen sensor replacement or a Nissan Frontier upstream oxygen sensor search, confirm the exact year and position listed above. The Walker Products 350-64080 should be checked against the vehicle’s emissions configuration, especially on Sentra and Altima applications with California or Federal emissions notes.

Quality Assurance

Walker Products has supplied engine management and sensor components since 1946 and operates as an ISO 9001/TS 16949 certified company. The 350-64080 is produced as an application-specific replacement intended to deliver the diagnostic feedback required by the vehicle’s ECU.