GM Genuine Parts AFS106 Heated Oxygen Sensor (19355306) | OE O2 Sensor for GM

Overview

The GM Genuine Parts AFS106 heated oxygen sensor plays a key role in your vehicle’s exhaust system. Designed to monitor the oxygen content in exhaust gases, it helps the engine control module (ECM) adjust the air–fuel mix toward an efficient, steady operation. While not a guarantee of performance outcomes, this part is intended to support your GM vehicle’s emission control strategy with reliable, purpose-built sensing technology.

Crafted, tested, and backed by General Motors, this sensor reflects the commitment to OE quality. It’s a true GM Genuine Parts component—engineered to fit, function, and endure within GM and Cadillac, Chevrolet, Buick, and GMC lineups. In some cases, GM Genuine Parts may have formerly appeared under the ACDelco GM Original Equipment (OE) badge, reflecting a longstanding approach to GM-specific parts validation and compatibility.

Key benefits and what to expect

• Detects oxygen content in exhaust gases to help optimize emissions and support ECM adjustments
• OE-grade design and rigorous testing backed by General Motors for GM vehicles
• Engineered and validated by GM engineers specifically for Chevrolet, Buick, GMC, and Cadillac models
• GM regularly updates designs to incorporate new materials and technologies

Real-world use cases

When installed, the AFS106 sensor contributes to monitoring exhaust oxygen levels so the ECM can fine-tune the air–fuel ratio. This can translate to smoother idle, consistent engine response, and a monitoring framework that aligns with GM’s engineering standards. Users may notice quieter idle at times and steadier performance across varying driving conditions as the system adapts to the exhaust signal.

Because the sensor is designed to work within GM’s OE ecosystem, it’s positioned as a component that complements the vehicle’s overall emissions strategy. It’s a part you may rely on as vehicles age and the ECM seeks continual alignment with real-time exhaust data, materials, and technology updates that GM periodically introduces.

Why choose GM Genuine Parts

• OE-validated parts crafted for GM vehicles, with GM’s engineering attention on fit and function
• Backed by GM’s warranty and ongoing design improvements to stay current with technology
• Potential compatibility with earlier OE design variants where applicable, offering continuity for GM owners