Walker 350-34555 Oxygen Sensor

Walker Oxygen Sensor for Porsche Boxster

Walker Products 350-34555 is a heated oxygen sensor built as a specific-fit OE-style replacement for select Porsche Boxster applications. It is engineered to provide the ECU with the exhaust feedback needed for fuel control and emissions monitoring on 2000-2003 Porsche Boxster models.

The Walker Products Aftermarket line focuses on application-specific engine management and oxygen/air-fuel sensors. For this part, the fitment and connector design are matched to the vehicle position, helping maintain proper sensor communication with the engine control system.

Key Features

• Part number 350-34555
• Heated oxygen sensor design
• Specific fit for select Porsche Boxster applications
• 4-wire configuration with 20-gauge wiring
• Female connector with radiused polygon shape
• Threaded mounting type with 18.0 mm thread diameter
• Wiring harness length: 13.31 in.
• Overall length: 16.85 in.

Detailed Description

Walker Products 350-34555 is designed for 2000-2003 Porsche Boxster oxygen sensor replacement where accurate exhaust feedback is required by the ECU. This heated sensor supports the vehicle’s emissions and fuel-management strategy by reporting exhaust oxygen content to the engine control system. It is a direct-fit style replacement for the listed upstream and downstream positions on the Porsche Boxster, including upstream right, upstream left, downstream right, and downstream left applications. If you are searching for a Porsche Boxster oxygen sensor replacement, Walker Products 350-34555 provides the correct application-specific fitment for the listed model years.

This part cross-references no listed aftermarket part numbers for the same application.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Poor fuel economy caused by inaccurate exhaust feedback
• Rough engine operation from incorrect air-fuel correction
• Elevated exhaust emissions from a failing sensor
• Stored ECU fault codes tied to the affected sensor circuit

Installation Notes and Tips

• Fits 2000-2003 Porsche Boxster, upstream right.
• Fits 2000-2003 Porsche Boxster, upstream left.
• Fits 2000-2003 Porsche Boxster, downstream right.
• Fits 2000-2003 Porsche Boxster, downstream left.
• Inspect the sensor wiring harness and connector for heat damage, abrasion, or corrosion before installation.
• Confirm the threaded mounting location and connector style match the original sensor before replacement.
• Verify the fault code and sensor position before ordering to ensure the correct Porsche Boxster oxygen sensor is selected.

Quality Assurance

Walker Products has been producing engine management and fuel system components since 1946 and operates as an Automotive ISO9001/TS 16949 certified company. The 350-34555 is built to the application-specific standards expected for OE-style sensor replacement.