Zipper Rd300 300 Kg Petrol Dumper. This four-wheeled dumper is designed for on-site transport of bulk material and heavy rubble over difficult terrain. It features solid steel construction, a 5.5 HP 4-stroke petrol engine, a 4-speed gearbox (3 forward/1 reverse), and a 300 kg load capacity. Extremely flexible and easy to maneuver, its narrow wheel base allows for easy access through doors and tight gaps. Includes a snowblade plough as standard equipment. This 4x4 drive dumper is built with solid steel and offers easy access through narrow spaces.