ENGINE MODEL AND SERIAL NUMBER DESIGNATION ENGINE MODEL AND SERIAL NUMBER DESIGNATION The engine serial number and model number are laser etched on the cylinder block in the left side just below the intake manifold and above the cast-in Detroit Diesel logo (as viewed from the flywheel end). See Figure 1 Figure 1 Location of Engine Serial and Model Numbers 12 All information subject to change without notice. DDC-SVC-MAN-0039 Copyright © 2009 DETROIT DIESEL CORPORATION