Walker 350-64071 Oxygen Sensor - Upstream Left, Upstream Rear or Upstream Right

Walker 350-64071 Oxygen Sensor for Subaru and Toyota

Walker Products 350-64071 is a heated oxygen sensor built as a specific-fit OE replacement for select Subaru and Toyota applications. It is engineered to deliver the ECU feedback needed for accurate fuel control and emissions monitoring on the listed vehicles.

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors for exact application fitment. The 350-64071 follows that approach with a threaded, 4-wire design and a connector layout matched to the vehicle position.

Key Features

• Specific-fit heated oxygen sensor for direct application matching
• Threaded mounting type with 18.0 mm thread diameter
• 4-wire design with 20-gauge wiring
• Radiused polygon male connector for proper harness connection
• Wiring harness length: 5.43
• Overall length: 8.98
• Fits upstream right, upstream left, and upstream rear positions depending on application
• Walker Products part number 350-64071

Detailed Description

Walker 350-64071 is an oxygen sensor for vehicles that rely on precise exhaust feedback to manage air-fuel ratio and emissions performance. It is listed for 2010-2014 Subaru Legacy, 2010-2014 Subaru Outback, 2010-2014 Subaru Tribeca, and 2002-2006 Toyota Camry applications, including upstream right, upstream left, and upstream rear positions as specified by the vehicle fitment. If you are searching for a Walker oxygen sensor for Subaru Legacy upstream left or a Walker oxygen sensor for Toyota Camry upstream rear, this part number is built for those exact placements.

As an OE-style replacement from Walker Products Aftermarket, part number 350-64071 is designed around the application-specific fitment position so the ECU receives the expected diagnostic signal. That makes it a practical choice when replacing a failed sensor on Subaru Legacy, Subaru Outback, Subaru Tribeca, or Toyota Camry models covered by the fitment data.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Poor engine operation caused by incorrect exhaust feedback
• Increased fuel consumption from inaccurate air-fuel control
• Higher exhaust emissions from a degraded sensor signal
• Fault codes stored in the ECU for the affected sensor circuit

Installation Notes and Tips

Confirm the exact vehicle position before ordering, since this sensor is listed for upstream right, upstream left, and upstream rear applications depending on the model. Inspect the sensor, wiring harness, and connector for physical damage before installation, as damaged components can shorten service life and affect signal quality. Verify thread size, connector shape, and harness routing against the original part to ensure proper fit.

For fitment-based searches, this part fits 2010-2014 Subaru Legacy, upstream right or upstream left; 2010-2014 Subaru Outback, upstream right or upstream left; 2010-2014 Subaru Tribeca, upstream right or upstream left; and 2002-2006 Toyota Camry, upstream rear. Walker Products 350-64071 is also a direct search match for drivers needing a replacement oxygen sensor for Subaru and Toyota upstream locations.

Quality Assurance

Walker Products states that its engine management and oxygen/air-fuel sensors are developed as OE replacement parts and manufactured under Automotive ISO9001/TS 16949 quality systems. The brand has supplied engine management and fuel system components since 1946, with application-specific cataloging and fitment control for modern vehicle platforms.