A gauge plate insulator includes a body having a first side and a second side positioned opposite the second, with the first side of the body defining a planar surface, and the body defining a first opening and a second opening, and a leg extending from the second side of the body and configured to be positioned between first and second gauge plate members. The leg is positioned between the first and second openings of the body, with the body and leg formed integrally from a fiber-reinforced polymer.