Walker 350-35011 Oxygen Sensor - Upstream Left or Upstream Right

Walker Oxygen Sensor for Porsche Upstream Applications

Walker Products 350-35011 is a specific-fit heated oxygen sensor engineered for upstream right and upstream left positions on select Porsche models. It is built to deliver the ECU feedback needed for accurate fuel control and emissions monitoring on the covered applications.

Walker Products Aftermarket focuses on OE-style engine management and oxygen/air-fuel sensors for precise application fitment. The 350-35011 follows that approach with a threaded mounting design, 5-wire configuration, and a connector layout matched to the vehicle application.

Key Features

• Part number: 350-35011
• Heated oxygen sensor for upstream placement
• Specific fit for covered Porsche applications
• 5-wire design with 20-gauge wiring
• Radiused polygon male connector
• Threaded mounting type with 18.0 mm thread diameter
• Wiring harness length: 54.65
• Overall length: 58.19

Detailed Description

This Walker oxygen sensor is designed for Porsche Cayenne, Porsche 911, Porsche Boxster, Porsche Cayman, and Porsche Panamera applications listed in the fitment data. It is intended for upstream right and upstream left sensor locations where the ECU relies on fast, accurate exhaust feedback to manage air-fuel ratio and emissions performance. If you are replacing a failed Porsche upstream oxygen sensor, Walker Products 350-35011 provides the application-specific configuration needed for proper installation and system communication.

Walker Products Aftermarket builds engine management sensors as OE replacement parts for a wide range of vehicles worldwide. The 350-35011 reflects that focus with a heated sensor design, threaded mounting, and connector geometry matched to the vehicle side and position. This part number is commonly searched as Walker 350-35011 oxygen sensor for Porsche Cayenne upstream right or left, and as a replacement oxygen sensor for Porsche 911, Boxster, Cayman, and Panamera upstream positions.

What It Is Used For

• Replacing a failed upstream oxygen sensor on covered Porsche models
• Restoring ECU exhaust feedback for fuel mixture control
• Addressing a malfunction indicator light related to oxygen sensor faults
• Correcting poor engine operation caused by inaccurate sensor readings
• Helping reduce elevated fuel consumption and exhaust emissions

Installation Notes and Tips

Verify the vehicle year, model, and sensor position before ordering. This part is listed for upstream right and upstream left locations only, so match the side exactly to the original sensor. Inspect the sensor wiring harness and connector for heat damage, abrasion, or corrosion before installation, since damaged wiring can shorten sensor life and affect diagnosis. Confirm the threaded mounting and connector shape match the original unit on the vehicle.

Fits 2014-2016 Porsche Panamera, upstream right. Fits 2008-2014 Porsche Cayenne, upstream right. Fits 2008-2014 Porsche Cayenne, upstream left. Fits 2009-2012 Porsche 911, upstream right. Fits 2009-2012 Porsche 911, upstream left. Fits 2009-2012 Porsche Boxster, upstream right. Fits 2009-2012 Porsche Boxster, upstream left. Fits 2009-2012 Porsche Cayman, upstream right. Fits 2009-2012 Porsche Cayman, upstream left.

Quality Assurance

Walker Products is an Automotive ISO9001/TS 16949 certified company with a long history in engine management and fuel system components. The brand’s oxygen and air-fuel sensors are developed as OE replacement parts for specific vehicle applications, with fitment and connector details matched to the intended position.