Replacement New OEM Side Gearbox / Rotor Oil Seal kit for King Kutter TG Series Tiller. Set of two double lip oil seals that measure 55mm id x 75mm od x 10/12mm thick. Set of two double lip seals These seals will be either 10mm or 12mm thick depending upon the seals sent from the manufacturer of these tillers. Both will work correctly. We sell many replacement parts for the most rotary cutters. If you don't see the parts you need listed please contact us we would love to earn your business.