This ACDelco 213-4228 GM 12609456 Silverado Sierra Downstream LH RH Oxygen O2 Sensor is a high-quality sensor that is designed to ensure the proper functioning of your vehicle's air intake and fuel delivery systems. With its easy installation, wired connection, and direct fit features, this sensor is a reliable choice for any car or truck owner. Made of durable metal and equipped with a Mini-Blade terminal type, this oxygen sensor is built to last and provide accurate readings for years to come. The sensor is compatible with a range of vehicles, including those with lower, left, or right placement on the vehicle. It comes with 4 wires and a gray connector color, and is not a universal fitment or a performance part.