The DuroMax XP16HP is our medium sized engine that offers the perfect balance of being lightweight and powerful; this 420cc 4-stroke OHV engine has plenty of power for multiple medium-duty applications including go karts, pressure washers, trailer mounted-mobile carwashes, log splitters, roto tillers- cultivators, and water/trash transfer pumps. This engine is equipped with convenient features like a large 1.75-gallon fuel tank for longer runtimes, an E-Z Pull Recoil Starter for starting the engine with ease, and EPA and CARB approved for safe mandated use.