Muffler gasket muffler muffler lawn mower mower HONDA compatible For models: HONDA GX 240 , GX 270 , GX 340 , GX 390 Part No.: 30270559 Original part No.: 18381-ZE2-W10 18381ZE2W10 18381-ZE2-820 18381ZE2820 HONDA ah m