Carburetor Gasket fits Honda GX 340 & GX 390 P/N: 16221-ZF6-800, 3713161, Oregon 49-189, Stens 485-148 Carburetor Gasket Fits GX340 (11 HP) & GX390 (13 HP) Honda Engine Honda OEM # 16221-ZF6-800 Oregon # 49-189 Stens # 485-173