Honda Style 5.5HP / 6.5HP (GX160, GX200) muffler with shield. This muffler works on our 10A9000 and 10A9005 engines. Corresponding Honda part number is 18310-ZL0-000. The Honda style 5.5HP (GX160) and 6.5HP (GX200) motor profile has thousands of applications in the global market. One of the most commonly used engine types worldwide.