Walker 350-34354 Oxygen Sensor - Downstream or Upstream

Walker 350-34354 Oxygen Sensor for Nissan Platina

Walker Products 350-34354 is a heated oxygen sensor built as a specific-fit OE replacement for select Nissan Platina applications. It is engineered to provide the ECU with the feedback needed for accurate fuel control and emissions monitoring.

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors for application-specific fitment. The 350-34354 follows that approach with the correct connector style, thread size, and harness length for the listed vehicle positions.

Key Features

• Heated oxygen sensor for faster operating response
• Specific fit design for listed Nissan Platina applications
• 4-wire configuration with female connector
• 16.06 in. wiring harness length
• 18.00 mm thread diameter
• Overall length: 19.61 in.
• Walker Products part number 350-34354

Detailed Description

This Walker oxygen sensor is designed for 2002-2010 Nissan Platina models in upstream and downstream positions, depending on the vehicle configuration. It is intended for Bank 1 Sensor 1 upstream service and Bank 1 Sensor 2 downstream service on specific models, making it a direct replacement choice when diagnosing fuel trim issues or emissions-related fault codes. The 350-34354 is also referenced as Walker Products Aftermarket 350-34354 for catalog and service lookup.

As an OE-style replacement sensor, it is built to deliver the diagnostic feedback the ECU expects from the exhaust stream. That makes it a practical option for Nissan Platina oxygen sensor replacement, upstream oxygen sensor service, or downstream oxygen sensor replacement on supported vehicles.

What It Is Used For

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

Installation Notes and Tips

Verify the vehicle position before installation: upstream Bank 1 Sensor 1 or downstream Bank 1 Sensor 2, as listed for the application. Inspect the sensor wiring harness and connector for heat damage, abrasion, or corrosion before replacement. Confirm thread diameter, connector gender, and harness length match the original sensor before installation. The part number 350-34354 should be matched to the exact Nissan Platina application shown in the fitment data.

Quality Assurance

Walker Products has produced engine management and fuel system components since 1946 and operates under Automotive ISO9001/TS 16949 quality systems. The 350-34354 is manufactured as an application-specific replacement sensor for the listed Nissan Platina fitments.

• Fits 2002-2010 Nissan Platina, upstream
• Fits 2002-2010 Nissan Platina, downstream
• Fits 2002-2010 Nissan Platina, upstream