Walker 350-64054 Oxygen Sensor - Upstream

Walker 350-64054 Oxygen Sensor for Acura RSX

Walker Products 350-64054 is a heated oxygen sensor built as a specific-fit OE replacement for select Acura RSX applications. It is engineered to deliver the diagnostic feedback the ECU expects, helping maintain proper air-fuel control and emissions system performance.

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors for exact application fitment. The 350-64054 follows that approach with a threaded, 4-wire heated design for upstream placement on the Acura RSX.

Key Features

• Specific-fit oxygen sensor for targeted vehicle applications
• Heated sensor design for faster operating response
• 4-wire configuration with male connector
• Radiused polygon connector shape for application-specific fitment
• Threaded mounting type with 18.0 mm thread diameter
• Wiring harness length: 15.28 in.
• Overall length: 18.82 in.

Detailed Description

The Walker Products 350-64054 oxygen sensor is built for upstream use on 2002-2004 Acura RSX models, including Bank 1 Sensor 1 applications. It is also listed for front oxygen sensor use on various vehicle models within the same fitment range. As an OE-style replacement, it is intended to provide the ECU with accurate exhaust feedback so the engine management system can adjust fuel delivery correctly.

For shoppers searching for a 2002-2004 Acura RSX upstream oxygen sensor, Walker 350-64054 offers the correct sensor type, connector style, and threaded mounting configuration for the listed applications. The part number 350-64054 is also useful when cross-checking service records or replacing a failed upstream sensor on the Acura RSX.

What It Helps Address

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

Installation Notes and Tips

Before replacement, inspect the sensor wiring harness and connector for heat damage, abrasion, or corrosion. Confirm the upstream mounting location and verify the 18.0 mm threaded fitment before installation. For 2002-2004 Acura RSX service work, compare the connector shape and wire count to the original sensor to ensure the correct application.

Quality Assurance

Walker Products has supplied engine management and fuel system components since 1946 and operates with Automotive ISO9001/TS 16949 certification. The 350-64054 is manufactured as a specific application replacement to support the diagnostic needs of the vehicle ECU.