Dynapac SD Asphalt Pavers are powered by a Cummins QSB6.7 diesel engine with emission Stage lllA / IV & V. The power unit offers optimized energy,conversion through: load-sensitive engine speed control; use of the most efficient pumps and the most compact final drives, inc!. motors. The cooling system is driven by a hydraulic motor thatris,thermostatically controlled for efficient cooling. The CAN-BUS system ensures high operationa I relia bility a nd centralised control.