Kohler 52 559 01-S, Kohler 52 559 01, Kohler 52 559 02, Kohler 52 559 03-S, Ariens 20578900Kohler KT17, KT19, M18, M20, MV16-MV20 1 5/8" arm length, Ethanol: Not compatible with greater than 10% ethanol fuel, Adapters to fit 1/4", 5/16" and 3/8" ID fuel line