This insulator fits Mack applications and comes as a vendor pack of four identical units, each measuring 3.25 in. by 3.25 in. by 1.5 in. It falls under the cab parts group and is built as a non-conductive buffer that helps limit heat, vibration, or noise transfer between mating components. No electrical or thermal ratings are specified beyond its dimensions and fitment.Interchanges:25167342BXPL1017PL1017PL1017-HTMack 20QL1118AThis unit is sold in packs of 4.FeaturesSold as a pack of 4 insulatorsEach unit measures 3.25 in. L x 3.25 in. W x 1.5 in. HCab parts group componentTech SpecsHeight: 1.5 in.Width: 3.25 in.Length: 3.25 in.Used in this Mack modelBell Housing Components