Subaru’s new line of SGX Generators feature overhead cam EX21 engines. Model SGX3500 uses a 7-horsepower engine and can run for eight continuous hours at the rated load. SGX5000 has a 9.5-horsepower engine with more than nine hour of continuous run time. Model SGX7500E has a maximum output of 7,300 watts and can continually run for seven hours. All offer OSHA-compliant ground fault circuit interrupter receptacles.