Walker 350-31017 Oxygen Sensor - Upstream

Walker 350-31017 Oxygen Sensor Overview

Walker 350-31017 is a specific-fit oxygen sensor engineered as an OE-style replacement for vehicles that rely on accurate exhaust feedback to the ECU. It is built with a threaded mounting design, a 18.0 mm thread diameter, and a non-heated sensing element for direct application-specific service.

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors for precise fitment and diagnostic feedback. The 350-31017 is designed for the correct mounting position and connector style, helping restore proper sensor communication on the vehicle.

Key Features

• Specific-fit oxygen sensor for application-matched replacement
• Non-heated sensor type for the listed vehicle application
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon connector shape with male connector gender
• 14.29 wiring harness length and 20-gauge wire specification
• Walker Products Aftermarket part number 350-31017

Detailed Product Description

Walker 350-31017 is an oxygen sensor built for vehicles that depend on exhaust oxygen data to manage fuel delivery and emissions control. As an OE replacement from Walker Products Aftermarket, it is manufactured for the specific application, fitment position, and ECU feedback requirements of the vehicle. This makes it a practical choice for drivers and technicians servicing emission control systems on models such as Honda Civic and other application-specific vehicles listed for this part.

The sensor uses a threaded mount and a male radiused polygon connector, with a non-heated design and single-wire configuration. Those details matter when replacing a failed sensor because the connector style, harness length, and mounting dimensions must match the original setup for proper installation and signal reporting. Part number 350-31017 is also referenced as Walker Products 350-31017 in catalog searches.

Common Issues This Sensor May Address

• Check engine light or malfunction indicator light related to oxygen sensor performance
• Rough engine operation caused by inaccurate exhaust feedback
• Increased fuel consumption from incorrect air-fuel control
• Higher exhaust emissions from a degraded sensor signal
• Fault codes stored in the ECU for the affected sensor circuit

Installation Notes and Tips

Before installation, inspect the sensor wiring harness and connector for physical damage, since damaged wiring can shorten service life and affect operation. Confirm the threaded mounting location, connector shape, and harness routing match the original sensor position before starting the repair. For fitment-based searches, this part is commonly referenced for Honda Civic oxygen sensor replacement applications, including Civic models listed under this part number.

Because fitment data is not expanded in the supplied catalog record, verify the exact year, engine, and sensor position against the vehicle catalog before ordering. Use part number 350-31017 to confirm the correct application in your lookup system.

Quality Assurance

Walker Products has supplied engine management and fuel system components since 1946 and operates as an Automotive ISO9001/TS 16949 certified company. The Walker Products Aftermarket line is built around application-specific replacement parts for modern diagnostic systems, including oxygen sensors that must communicate accurately with the ECU.