ORIGINAL LONCIN lawn mower muffler gasket For models: LONCIN G 240 F , G 240 FD , G 270 F , G 270 FD , G 340 F , G 340 FD , G 390 F , G 390 FD , G 420 F , G 420 FD Original part number: 55800002 Original part number: 180650090-0001 1806500900001 ?180650090 ah m