QSB4.5 and QSB6.7 Engine Identification Section E - Engine and System Identification Page E-1 Engine Identification Engine Dataplate The engine dataplate provides important information about the engine. The engine serial number (ESN) and control part list (CPL) provide information for service and for ordering parts. The engine dataplate must not be changed unless approved by Cummins Inc. Have the following engine data available when communicating with a Cummins® Authorized Repair Location. The information on the dataplate is mandatory when sourcing service parts. NOTE: The engines covered by this manual are produced worldwide.
The dataplates used on engines may differ in appearance and location of information. The following illustrations show examples of common dataplates used and the information contained on the dataplate. 1 Engine serial number 2 Engine model information 3 Control parts list (CPL) 4 Valve lash (overhead) setting 5 Horsepower and rpm rating.