Engine Identification QSC8.3 and QSL9 Page E-4 Section E - Engine and System Identification Cummins® Engine Nomenclature The Cummins® engine nomenclature provides the engine model and horsepower rating. Fuel Injection Pump Dataplate The Cummins® Accumulator Pump System (CAPS) fuel injection pump dataplate is located on the side of the injection pump. The dataplate contains the following information: 1 Cummins® part number 2 Pump serial number 3 Factory code.