wheel seal for a Tractor Trailer Truck Class 8 Heavy Duty. These work on trailer axles and drive axles that use a Stemco Seal PN# 372-7091 also National Federal Mogul PN# 370107A NSN 5330-01-417-5137 Original application was the M172 trailer may fit other civilian trailers using this seal.Save here buy more than 1
10476 R3A5