Walker 350-34948 Oxygen Sensor

Walker 350-34948 Oxygen Sensor Overview

Walker Products 350-34948 is a heated, threaded oxygen sensor built as a specific-fit OE replacement for a wide range of GM vehicles. It is engineered to deliver the diagnostic feedback the ECU expects, helping maintain proper air-fuel control and emissions performance.

For applications such as Chevrolet Camaro, Colorado, Malibu, Silverado HD, and GMC Canyon, this sensor is matched to the required position and connector style for direct replacement service.

Key Features

• Heated oxygen sensor for faster operating response
• Specific-fit design for the listed vehicle applications
• 4-wire configuration with 20-gauge wiring
• Radiused polygon male connector for application-specific fitment
• Threaded mounting with 18.0 mm thread diameter
• Wiring harness length: 12.32 in.; overall length: 15.87 in.

Product Details

Walker Products Aftermarket focuses on OE-style engine management and oxygen/air-fuel sensors developed for exact application fitment. Part number 350-34948 is designed to match the sensor location, wiring, and connector requirements used by the vehicle ECU, which is important for accurate feedback and fault-code resolution. This part number is used across upstream and downstream positions depending on the vehicle, including upstream right, upstream left, downstream right, and downstream left applications.

Compatible vehicle coverage includes 2013-2024 Chevrolet Camaro, 2015-2021 Chevrolet Colorado, 2013-2019 Chevrolet Malibu, 2014-2019 Chevrolet Corvette, 2016-2019 GMC Sierra HD models, and 2016-2020 Cadillac Escalade, among many others. If you are replacing a Chevrolet Camaro upstream oxygen sensor, a GMC Canyon front oxygen sensor, or a Chevrolet Tahoe upstream right oxygen sensor, Walker 350-34948 is built for those exact positions.

This part cross-references Bosch 17025 and Denso 234-9005 for the same application.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Poor fuel economy caused by incorrect air-fuel feedback
• Rough engine operation from inaccurate exhaust oxygen readings
• Elevated exhaust emissions from a failing sensor
• Fault codes stored in the ECU for the affected sensor circuit

Installation Notes and Tips

Confirm the exact sensor position before ordering, since this part is used in multiple upstream and downstream locations. Inspect the sensor wiring harness and connector for heat damage, abrasion, or corrosion before installation. Verify thread size and connector shape against the original sensor to ensure proper fit on the vehicle.

For best results, clear diagnostic trouble codes after installation and confirm the repair with a scan tool. Because fitment varies by model and engine configuration, use the listed year, make, model, and position details to match the correct application.

Quality Assurance

Walker Products has manufactured engine management components since 1946 and operates as an ISO 9001/TS 16949 certified company. The 350-34948 oxygen sensor is built as an OE replacement for the specified applications and is intended to provide the diagnostic feedback required by the ECU.