Walker 350-34335 Oxygen Sensor - Downstream Front or Downstream Rear

Walker 350-34335 Oxygen Sensor for Toyota Venza

Walker Products 350-34335 is a heated oxygen sensor built as a specific-fit OE replacement for select Toyota Venza applications. It is engineered to provide the ECU with the exhaust feedback needed for proper fuel control and emissions monitoring.

For Toyota Venza owners searching for a downstream rear oxygen sensor or a downstream front oxygen sensor replacement, this Walker Products Aftermarket part is matched to the listed position and application details.

Key Features

• Specific-fit heated oxygen sensor for targeted vehicle applications
• Threaded mounting type with 18.0 mm thread diameter
• 4-wire design with 20-gauge wiring
• Radiused polygon male connector for application-specific connection
• Wiring harness length: 34.96 in.; overall length: 38.5 in.
• Walker Products Aftermarket line for engine management and oxygen/air-fuel sensor replacement

Product Details

Walker Products 350-34335 is designed as an OE-style replacement oxygen sensor for emissions control systems on the Toyota Venza. The heated sensor design helps the engine control unit monitor exhaust conditions and maintain accurate feedback for fuel delivery and emissions management. This part number is listed for downstream rear and downstream front positions depending on model year and configuration, including Toyota Venza 2009-2016 coverage in the fitment data.

Walker Products has focused on engine management sensors since 1946, and the Walker Products Aftermarket line is built around application-specific fitment and diagnostic feedback requirements. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Vehicle Fitment

• Fits 2016 Toyota Venza, downstream rear.
• Fits 2015 Toyota Venza, downstream rear.
• Fits 2011-2014 Toyota Venza, downstream front.
• Fits 2009-2010 Toyota Venza, downstream rear.

Common Issues This Sensor May Address

• Check engine light or malfunction indicator light related to oxygen sensor performance
• Poor engine operation caused by inaccurate exhaust feedback
• Increased fuel consumption from incorrect air-fuel control
• Higher exhaust emissions due to degraded sensor response
• Stored ECU fault codes tied to the affected sensor circuit or system

Installation Notes and Tips

Confirm the exact position before installation, since this part is listed for both downstream rear and downstream front Toyota Venza applications. Inspect the sensor, wiring harness, and connector for physical damage before replacement, and verify the connector shape, thread diameter, and harness length against the original part.

For best results, compare the old sensor’s mounting style and connector layout to the replacement before installation on your Toyota Venza.

Quality Assurance

Walker Products manufactures engine management sensors to application-specific standards and operates as an ISO 9001 / TS 16949 certified company. The 350-34335 is built as a direct replacement style sensor for the listed Toyota Venza applications.