Operation and maintenance manual

Engine Identification QSB4.5 and QSB6.7
Page E-2 Section E - Engine and System Identification
1 Engine serial number
2 Engine model information
3 Horsepower and rpm rating
4 Valve lash (overhead) setting.
NOTE: Depending on the manufacturing plant, calibration data may also be found on the engine dataplate.
NOTE: If the engine dataplate (1) is not legible, the
engine serial number (2) can be found on the engine
block, on top of the lubricating oil cooler housing.
Additional engine information can be found on the
electronic control module (ECM) dataplate.
Cummins® Engine Nomenclature
The Cummins® engine nomenclature provides the data
as shown in the illustration.