Walker 350-35010 Oxygen Sensor - Upstream, Upstream Left or Upstream Right

Walker 350-35010 Oxygen Sensor Overview

Walker Products 350-35010 is a heated oxygen sensor built as a specific-fit OE replacement for select Porsche, Audi, and Volkswagen applications. It is engineered to provide the ECU with the exhaust feedback needed for accurate fuel control and emissions monitoring.

For vehicles such as the Porsche 911, Boxster, Cayman, and Audi R8, this Walker Products Aftermarket sensor is matched to the application, mounting position, and connector style for direct replacement service.

Key Features

• Heated oxygen sensor for exhaust feedback and fuel-trim control
• Specific-fit design for the listed vehicle applications
• Threaded mounting type with 18.0 mm thread diameter
• 5-wire configuration with 20-gauge wiring
• 31.02 in. wiring harness length and 34.57 in. overall length
• Radiused polygon male connector for application-specific fitment
• Walker Products part number 350-35010

Application Details

This sensor is used on select upstream positions, including upstream right, upstream left, upstream rear, and upstream configurations. Confirmed fitment includes 2010-2019 Porsche 911 upstream right, 2016 Porsche Boxster upstream right, 2016 Porsche Cayman upstream right, 2009-2016 Volkswagen CC upstream rear, 2006-2008 Volkswagen Passat upstream rear, and 2015 Audi R8 upstream left.

Additional coverage includes 2014 Audi R8 upstream left, 2008-2012 Audi R8 upstream right, 2007-2008 Porsche 911 upstream left and upstream right, 2005-2008 Porsche Boxster upstream left and upstream right, 2006-2008 Porsche Cayman upstream left and upstream right, 2007 Audi S6 upstream, and 2006 Volkswagen Phaeton upstream.

What This Oxygen Sensor Helps Address

• Check engine light or MIL 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 failing upstream sensor
• Stored ECU fault codes tied to the affected sensor circuit

Installation Notes

Install in the specified upstream position only and verify connector shape, wire count, and thread size before replacement. Inspect the sensor wiring harness and connector for physical damage, since damaged wiring can shorten service life and affect ECU feedback. For Audi R8, Porsche 911, Porsche Boxster, Porsche Cayman, and Volkswagen CC applications, confirm left, right, or rear placement against the vehicle’s original sensor location.

Quality Assurance

Walker Products has produced engine management and oxygen/air-fuel sensors as OE-style replacement parts for many vehicle applications worldwide. The brand is ISO 9001 and TS 16949 certified, and part 350-35010 is built for the specified fitment and diagnostic requirements of the ECU.