This Genuine GM Heated Oxygen Sensor is a direct replacement for 2011-2013 Chevrolet GMC Express Savana models. The sensor type is an Oxygen Sensor with a female connector type and OE/OEM part number 12637297. It is a performance part that is certified as Genuine OEM by the manufacturer. The sensor is designed for front placement on the vehicle and has a fitment type of Direct Replacement. It has one sensor and is not a vintage part. The item weight is 0.3 lb and it is not a universal fitment. This oxygen sensor is perfect for those looking to replace a faulty sensor with a high-quality, genuine OEM part.