Engine Identification C8.3 Commercial Marine and Ind [...] Page E-8 Section E - Engine Identification Industrial Applications 6CTAA8.3 Industrial Applications 8.3 = displacement in liters AA = charge air aftercooled T = turbocharged C = engine series 6 = number of cylinders Fuel Injection Pump Dataplate The Bosch® fuel injection pump dataplate is located on the side of the injection pump. It provides information for fuel pump calibration.