... optional5. Cast iron cam shaft, high quality carburetor6. Best quality Crank Case7. Galvanized shining screw, A++ grade piston8. Strong carton packing ... , inside with foam and wood9. Single-Phase or three phase is optional10. New type volt-meter & current- meter, with ... ,oil alert,AC circuit breakerFour-wheel dolly kitYes 3.5kva Three Phase Quiet Gasoline Generator Carburetor (AD5500-C)