Walker 350-64033 Oxygen Sensor - Upstream

Walker 350-64033 Oxygen Sensor Overview

Walker Products 350-64033 is a heated oxygen sensor built as a specific-fit OE-style replacement for select Acura and Honda applications. It is engineered to provide the ECU with the feedback needed for accurate fuel control and emissions monitoring.

Compatible With 2013-2015 Acura ILX upstream and 2007-2009 Honda CR-V upstream, this sensor is a direct-fit option for vehicles that need a front oxygen sensor replacement. The Walker Products Aftermarket line focuses on application-specific engine management sensors, and this part number follows that approach for fitment and connector design.

Key Features

• Part number: 350-64033
• Heated oxygen sensor for upstream placement
• Specific fitment for select Acura ILX and Honda CR-V models
• 4-wire design with female connector
• Threaded mounting type with 18.0 mm thread diameter
• Wiring harness length: 9.37
• Overall length: 12.91
• Radiused polygon connector shape

Detailed Description

Walker Products 350-64033 is designed for vehicles that require an upstream oxygen sensor with the correct connector, harness length, and mounting configuration. As a heated sensor, it helps the engine management system monitor exhaust oxygen content more quickly after startup, supporting proper air-fuel control and diagnostic feedback to the ECU. This makes it a practical replacement for Acura ILX and Honda CR-V applications where the original sensor has failed or is reporting a fault.

The Walker Products Aftermarket sensor line is built around application-specific replacement parts for modern engine management systems. For this part number, the fitment and electrical configuration are matched to the listed vehicles, including 2013-2015 Acura ILX upstream and 2007-2009 Honda CR-V upstream. This part number, 350-64033, is intended for direct replacement use in those positions.

What It Helps Address

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

Installation Notes and Tips

Confirm the vehicle position before ordering: this sensor is listed for upstream use only. Verify connector shape, wire count, thread diameter, and harness length against the original part before installation. Inspect the sensor wiring harness and connector for heat damage, corrosion, or physical wear, since damaged wiring can shorten sensor life and trigger recurring fault codes.

Fits 2013-2015 Acura ILX, upstream. Fits 2007-2009 Honda CR-V, upstream. This part cross-references Walker Products Aftermarket 350-64033 for the same application.

Quality Assurance

Walker Products states that its engine management sensors are developed as OE replacement parts and manufactured under Automotive ISO9001/TS 16949 quality systems. Since 1946, the brand has supplied engine management and fuel system components for a wide range of vehicle applications.