Walker 350-64043 Oxygen Sensor

Walker 350-64043 Oxygen Sensor for Nissan and INFINITI

Walker Products 350-64043 is a heated oxygen sensor built as an OE-style replacement for specific Nissan, INFINITI, and Suzuki applications. It is engineered for the correct fitment position and ECU feedback, making it a direct choice for upstream sensor service on vehicles such as the Nissan GT-R, Altima, Rogue, Maxima, Frontier, and INFINITI G37.

Key Features

• Heated oxygen sensor with specific-fit application coverage
• 4-wire design with a 20-gauge harness
• Threaded mounting with 18.0 mm thread diameter
• Radiused polygon male connector for vehicle-specific connection
• Wiring harness length: 12.32 in.; overall length: 15.87 in.
• OE replacement design for upstream sensor positions

Product Details

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors engineered to match original equipment requirements. Part number 350-64043 is built for specific vehicle applications and upstream locations, including Bank 1 Sensor 1 service on select Nissan Altima, Rogue, Sentra, Versa, and Cube models. It also covers right- and left-side upstream positions on vehicles such as the Nissan GT-R, 350Z, 370Z, Xterra, Frontier, Pathfinder, and several INFINITI models. This part cross-references no listed alternate part numbers in the provided data.

What It Helps Address

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

Installation Notes and Tips

Confirm the exact year, make, model, emissions package, and sensor position before ordering. This part is listed for upstream, upstream front, upstream rear, upstream right, and upstream left applications depending on vehicle configuration. Inspect the sensor connector, wiring harness, and nearby exhaust components for heat damage or physical wear before installation. For fitment examples, this part fits 2024 Nissan GT-R, upstream rear; fits 2023 Nissan GT-R, upstream right; fits 2020 Nissan Frontier, upstream right; fits 2013 Nissan Altima, upstream; and fits 2011-2012 Nissan Rogue, upstream.

Quality Assurance

Walker Products states that its engine management and oxygen/air-fuel sensors are developed as OE replacements and manufactured under ISO 9001/TS 16949 quality systems. The brand has supplied engine management and fuel system components since 1946, with application-specific cataloging for modern vehicle service.