Walker 350-64001 Oxygen Sensor - Upstream

Walker 350-64001 Oxygen Sensor for Acura TSX

Walker 350-64001 is a heated, specific-fit oxygen sensor engineered as an OE-style replacement for select Acura TSX applications. It is built for upstream placement and provides the ECU with the feedback needed to monitor air-fuel control and emissions performance.

For 2004-2008 Acura TSX models, this Walker Products Aftermarket sensor is a direct-fit option for upstream oxygen sensor service. The 350-64001 uses a 4-wire design with a female radiused polygon connector, 18.0 mm thread diameter, and threaded mounting for application-specific installation.

Key Features

• Specific-fit heated oxygen sensor for upstream placement
• Walker Products Aftermarket part number 350-64001
• 4-wire design with 20-gauge wiring
• Female radiused polygon connector
• 18.0 mm thread diameter with threaded mounting
• Wiring harness length: 21.57
• Overall length: 25.12

Detailed Description

Walker Products designs engine management and oxygen/air-fuel sensors as OE replacement parts for a wide range of vehicles. Part number 350-64001 is built for the specified fitment position and is intended to deliver the diagnostic feedback the ECU expects from an upstream sensor. On 2004-2008 Acura TSX vehicles, the upstream oxygen sensor plays a key role in fuel control and emissions monitoring.

This sensor is relevant when diagnosing poor engine performance, increased fuel consumption, elevated exhaust emissions, or a malfunction indicator light related to oxygen sensor feedback. If the sensor has failed, the wiring harness and connector should also be inspected for damage that could shorten service life. Walker Products Aftermarket 350-64001 is a direct replacement choice for Acura TSX upstream oxygen sensor service.

What It Is Used For

• Replacing a failed upstream oxygen sensor on 2004-2008 Acura TSX
• Restoring ECU feedback for air-fuel ratio control
• Addressing oxygen sensor fault codes stored in the ECU
• Correcting rough running caused by inaccurate sensor readings
• Helping resolve increased fuel use or emissions-related warning lights

Installation Notes and Tips

Verify the vehicle is a 2004-2008 Acura TSX with upstream sensor placement before ordering. Match the connector shape, wire count, and thread diameter to the original sensor. Inspect the harness and connector for heat damage, corrosion, or broken terminals before installation. Use the vehicle’s service information for proper removal and torque procedures.

Fits 2004-2008 Acura TSX, Upstream. Fits 2004-2008 Acura TSX, Upstream, Bank 1 Sensor 1. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Quality Assurance

Walker Products has produced engine management and fuel system components since 1946 and operates with Automotive ISO9001/TS 16949 certification. The 350-64001 is manufactured for the specified application and fitment position to support the diagnostic needs of the vehicle’s ECU.