This is a direct kill switch for Honda Gx100 Gx110 Gx120 Gx160 Gx200 Gx240 Gx340 Gx340 Gx390 G100 G150 G200 G300 models. This may also fit on varies china made small engines used on lawn mowers, leaf blowers, construction equipment, agricultural equipment, water pumps and more!