Walker 350-34415 Oxygen Sensor

Walker 350-34415 Oxygen Sensor Overview

Walker Products 350-34415 is a heated, specific-fit oxygen sensor engineered as an OE-style replacement for a wide range of GM applications. It is built for the correct application and mounting position, helping the ECU receive the feedback it expects from the exhaust system.

Compatible With Chevrolet Malibu, Silverado 1500, Silverado 2500 HD, Silverado 3500 HD, GMC Sierra 1500, Sierra 2500 HD, Cadillac CTS, and other listed vehicles across 2000-2009 model years, this sensor supports accurate emissions monitoring and drivability restoration when the original unit has failed.

Key Features

• Walker Products Aftermarket oxygen sensor, part number 350-34415
• Heated sensor design for faster operating temperature
• Specific fit for the listed vehicle applications and positions
• 4-wire configuration with male radiused polygon connector
• Threaded mounting with 18.0 mm thread diameter
• Wiring harness length: 15.67 in.; overall length: 19.21 in.
• Wire gauge: 20

Product Details

Walker Products Engine Management and Oxygen/Air-Fuel sensors are developed as Original Equipment replacement parts for many vehicles worldwide. This Walker 350-34415 oxygen sensor is manufactured for the specified application and fitment position so the ECU receives the proper diagnostic feedback. The Walker Products Aftermarket line focuses on engine management sensors built for direct replacement use in emissions control systems.

This part cross-references no listed alternate part numbers in the provided data. Fitment includes upstream, downstream left, downstream right, downstream front, downstream rear, and upstream left positions depending on the vehicle. Examples include Fits 2007 Chevrolet Silverado 1500, downstream left and Fits 2007 GMC Sierra 2500 HD, downstream right.

Common Issues This Sensor May Address

• Check engine light or malfunction indicator light related to oxygen sensor performance
• Poor engine operation caused by incorrect exhaust feedback
• Increased fuel consumption from inaccurate air-fuel monitoring
• Higher exhaust emissions from a failing heated oxygen sensor
• Stored ECU fault codes tied to the affected sensor circuit

Installation Notes and Tips

Confirm the exact year, make, model, and sensor position before ordering. This part is a threaded, specific-fit sensor, so connector style, wire count, and harness length should be matched to the original unit. Inspect the sensor wiring harness and connector for heat damage, abrasion, or corrosion before installation, since physical damage can shorten sensor life and affect signal quality.

For fitment-based searches, this part is commonly selected for upstream oxygen sensor replacement on Chevrolet and GMC trucks, as well as downstream oxygen sensor service on Cadillac CTS, Chevrolet Malibu, and Pontiac G6 applications.

Quality Assurance

Walker Products has been producing engine management and fuel system components since 1946 and operates as an Automotive ISO9001/TS 16949 certified company. The 350-34415 is built to support the diagnostic feedback required by the ECU in the listed applications.