This socket is a must-have for any automotive enthusiast or mechanic. Designed to fit the oil pressure sending unit on a variety of vehicles, this Kastar brand tool is built to last. With a manufacturer part number of 1017A, you can be confident that you are getting a high-quality product. In addition, this socket comes with a warranty for added peace of mind. As a versatile tool, it can be used for a range of applications beyond just the oil pressure sending unit. It is a valuable addition to any collection of automotive hand tools and is sure to make your work easier and more efficient.