This part replaces several older Honda part numbers, including 30500-ZE1-013, 30500-ZE1-043, and 30500-ZE1-063. It is a common maintenance item if your engine is experiencing “no spark,” intermittent dying when hot, or difficulty starting. Common Applications: Fits the highly popular Honda GX110, GX120, GX140, GX160, and GX200 engines. Equipment Type: Extensively used in generators, water pumps, power washers, snow blowers (like the HS521 and HS622), and go-karts. Key Specs: Features 56mm mounting hole spacing and typically includes the spark plug boot and kill wire lead.