Walker 350-34374 Oxygen Sensor

Walker 350-34374 Oxygen Sensor Overview

Walker Products 350-34374 is a heated oxygen sensor built as a specific-fit OE replacement for select GM and Cadillac applications. It is engineered to provide the ECU with the feedback needed for accurate fuel control and emissions monitoring.

Use this Walker Products Aftermarket sensor for vehicles such as the Chevrolet Camaro, Pontiac Firebird, and Cadillac DeVille when replacing a failed upstream or downstream oxygen sensor in the listed positions.

Key Features

• Heated oxygen sensor with 4-wire design
• Specific-fit application for direct vehicle placement
• Threaded mounting type with 18.0 mm thread diameter
• Radiused polygon male connector
• 14.29 in. wiring harness length and 17.83 in. overall length
• Built for ECU feedback on emissions and fuel management systems

Product Details

Walker Products Aftermarket focuses on engine management and oxygen/air-fuel sensors engineered for OE-style replacement use. Part number 350-34374 is manufactured for the specified fitment position, helping maintain the diagnostic signal the engine control unit expects from the sensor circuit. This part number 350-34374 is listed for multiple upstream, downstream, and center positions across select Chevrolet Camaro, Pontiac Firebird, and Cadillac applications.

Compatible With 1998-2002 Chevrolet Camaro, upstream left; 2000-2002 Chevrolet Camaro, downstream right; 1998-2002 Chevrolet Camaro, downstream left; 1998-2002 Pontiac Firebird, upstream left; 2000-2002 Pontiac Firebird, downstream right; 1998-2002 Pontiac Firebird, downstream left; and select 1996-1999 Cadillac DeVille, 1996-1999 Cadillac Eldorado, and 1996-1999 Cadillac Seville positions shown in the fitment list.

Common Issues This Sensor May Address

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

Installation Notes and Tips

Confirm the exact year, make, model, and sensor position before ordering. For best results, inspect the sensor wiring harness and connector for heat damage, abrasion, or corrosion before installation. This heated oxygen sensor uses a threaded mount and a male connector, so the existing connector style and sensor location should match the vehicle application.

• Fits 1998-2002 Chevrolet Camaro, upstream left
• Fits 2000-2002 Chevrolet Camaro, downstream right
• Fits 1998-2002 Chevrolet Camaro, downstream left
• Fits 1998-2002 Pontiac Firebird, upstream left
• Fits 2000-2002 Pontiac Firebird, downstream right
• Fits 1998-2002 Pontiac Firebird, downstream left
• Fits 1996-1999 Cadillac DeVille, downstream front
• Fits 1996-1998 Cadillac DeVille, center
• Fits 1996-1999 Cadillac Eldorado, downstream front
• Fits 1996-1997 Cadillac Eldorado, center
• Fits 1996-1997 Cadillac Seville, center
• Fits 1996-1999 Cadillac Seville, downstream front

Quality Assurance

Walker Products has supplied engine management and sensor components since 1946 and operates as an Automotive ISO9001/TS 16949 certified company. The 350-34374 oxygen sensor is built to support the application-specific fitment and diagnostic feedback expected by the vehicle ECU.