Walker 350-64053 Oxygen Sensor - Upstream

Walker 350-64053 Oxygen Sensor for Volvo

Walker Products 350-64053 is a heated oxygen sensor built for specific vehicle applications and upstream mounting positions. It is engineered as an OE-style replacement for Volvo V70 and Volvo S60 models, helping the ECU receive the exhaust feedback it needs for proper fuel control.

Key Features

• Heated oxygen sensor with 4-wire design
• Specific-fit application for upstream installation
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon male connector for vehicle-specific connection
• Wiring harness length: 16.26 in.
• Overall length: 19.8 in.
• Wire gauge: 20

Product Line Details

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors built for direct replacement use. The 350-64053 follows that approach with application-specific fitment and sensor feedback designed to match the vehicle’s ECU requirements.

Detailed Description

The Walker 350-64053 oxygen sensor is designed for 2003-2007 Volvo V70, upstream and 2003-2005 Volvo S60, upstream applications. As a heated sensor, it helps the engine management system monitor exhaust oxygen content more quickly after startup, supporting accurate air-fuel control and emissions monitoring. If your Volvo V70 or Volvo S60 has a stored fault code related to the oxygen sensor circuit, poor fuel economy, rough running, or an illuminated malfunction indicator light, this part number is built for the specified upstream location.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Can Help Address

• Check engine light tied to upstream oxygen sensor faults
• Rich or lean fuel mixture concerns
• Reduced fuel economy from inaccurate exhaust feedback
• Higher exhaust emissions from a failing sensor
• Poor engine performance caused by incorrect ECU input

Installation Notes and Tips

Install in the upstream oxygen sensor position only for the listed Volvo applications. Before replacement, inspect the sensor wiring harness and connector for heat damage, corrosion, or broken terminals, since physical damage can shorten sensor life and affect signal quality. Confirm connector shape, thread size, and harness length against the original part before installation.

Quality Assurance

Walker Products has been manufacturing engine management components since 1946 and operates with Automotive ISO9001/TS 16949 certification. The 350-64053 is produced as a vehicle-specific replacement intended to deliver the diagnostic feedback required by the ECU.