The Walker 350-34094 Oxygen Sensor fits Buick Lacrosse and Lucerne vehicles, specifically designed for the upstream location. Made of plastic and metal, this sensor comes with a wire harness and features a screw-in mounting style. It is a direct fit with a female connector type and mini-blade terminal type, making installation easy. The product is manufactured by Walker Products and comes with a manufacturer part number of 350-34094. Additionally, it is important to note that this product may contain chemicals known to the State of California to cause cancer or birth defects. Exact item is shown. New open box with original packaging in fair condition. Item is sealed in factory inner packaging. Has 4 pin connector. Item weight 4 oz. Made in China. No returns if installed. This item is new with opened or damaged packaging. It may or may not be a customer return. It has been inspected and passed quality control to insure the condition described and contents are accurate. It may show minor wear from handling. Please review actual photos as stock photos are not the actual item, our photos are. You will ONLY receive exactly what is shown in photos, regardless of what might have originally been included. Please review our business policies in our store for information regarding returns, shipping and warranties. Unsealed item will be subject to a 50% restocking fee.