Walker 350-34076 Oxygen Sensor

Walker 350-34076 Oxygen Sensor Overview

Walker Products 350-34076 is a heated oxygen sensor built as a specific-fit OE replacement for select GM applications. It is engineered to deliver the ECU feedback needed for accurate fuel control, emissions monitoring, and fault-code diagnosis.

Compatible With Chevrolet Camaro, Chevrolet Impala, Chevrolet S10, Pontiac Firebird, Buick Regal, and other listed applications, this Walker Products Aftermarket oxygen sensor is designed around the original mounting position and connector style for direct replacement service.

Key Features

• Heated oxygen sensor for faster operating temperature and stable signal output
• Specific-fit design for the listed vehicle applications and sensor positions
• 4-wire configuration with 20-gauge wiring
• Threaded mounting with 18.0 mm thread diameter
• Radiused polygon male connector for application-specific fitment
• Overall length: 13.7; wiring harness length: 10.16
• Walker Products Aftermarket part number 350-34076

Detailed Description

Walker Products Engine Management and Oxygen/Air-Fuel sensors are developed as OE-style replacements for worldwide vehicle coverage, with each part number matched to a specific application and installation position. Part number 350-34076 is built for upstream and downstream positions across select Chevrolet, Buick, Pontiac, Oldsmobile, GMC, and Isuzu models, including applications such as Chevrolet Camaro upstream right, Chevrolet Impala downstream, Pontiac Firebird downstream, and Buick Regal downstream.

This sensor supports the ECU with the feedback needed to manage air-fuel ratio and emissions performance. When an oxygen sensor begins to fail, common symptoms can include poor engine operation, higher fuel consumption, increased exhaust emissions, and a malfunction indicator light. For accurate diagnosis, inspect the sensor, wiring harness, and connector for physical damage before replacement. Walker Products 350-34076 is a practical choice for service on GM oxygen sensor applications where exact position and connector fit matter.

This part cross-references no listed alternate part numbers in the provided data.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Rich or lean fuel mixture concerns
• Reduced fuel economy from inaccurate exhaust feedback
• Elevated exhaust emissions during inspection
• Poor drivability caused by a degraded upstream or downstream sensor

Installation Notes and Tips

Confirm the exact year, make, model, and sensor position before ordering. This specific-fit sensor uses a threaded mount and a male connector, so verify connector shape, wire count, and harness routing against the original part. For best results, inspect the exhaust bung, wiring, and connector terminals for heat damage, corrosion, or abrasion before installation.

Fitment examples include 2010-2012 Chevrolet Chevy upstream, 2000-2004 Chevrolet Impala downstream, 1997-2003 Chevrolet S10 downstream, 1996-2003 Pontiac Bonneville downstream, and 1996-2003 Buick Regal downstream. Additional coverage includes 1998-2002 Chevrolet Camaro upstream right and 1998-2002 Pontiac Firebird upstream right.

Quality Assurance

Walker Products has been manufacturing engine management and fuel system components since 1946 and operates as an Automotive ISO9001/TS 16949 certified company. The 350-34076 oxygen sensor is produced for application-specific fitment and ECU feedback requirements.