THIS LISTING IS FOR 1 PIECE - 2" X 2.75" X 0.5" INCH OIL SEAL TC, SIMILAR NATIONAL SEAL INTERCHANGE: 410389, 410389N, 450389H, 470389, 470389N, 480389, TC oil seals feature a dual lip with a garter spring and utilize a rubber cover for improved sealing ability, FACTORY NEW!