-Fits G100 G100K2 G200 G300 G400 GX120K1 GX390K1 GX340K1 GX160K1 GX200 GX240K1 GX270 WMP20X F401 F401K2 and many other fuel tank. Compatible with a variety of sizes. If you have questions about suitable size, please feel free to contact us. The package includes fuel cap *1. -Precisely designed to prevent leaking, it reduces vapor emissions and aid to fuel economy. The package includes gas cap replace*1. -Made with heavy duty metal fuel cap, the cap prevents gas or diesel vapors from escaping while the vehicle is in operation. Provides a tight seal to keep your vehicle's fuel tank closed, fuel economy and reduce vapor emissions.