Engine Identification
Caterpillar engines are identified with serial numbers, with performance specification numbers, and with arrangement numbers. In some of the cases, modification numbers are used. These numbers are shown on the Serial Number Plate and the Information Plate that are mounted on the engine.
Caterpillar dealers need these numbers in order to determine the components that were included with the engine. This permits accurate identification of replacement part numbers.
Serial Number Plate
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| Illustration 1 | g02012575 |
The C15 serial number plate is located on the right side of the cylinder block near the lower rear corner of the engine.
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| Illustration 2 | g01524733 |
The following information is stamped on the Serial Number Plate: engine serial number, model and arrangement number.
Information Plate
The following information is stamped on the Information Plate: serial number, arrangement number, compression ratio, aftercooler temperature (degree celsius and degree Fahrenheit), ignition timing, power (kilowatts and horsepower), full load speed and date of manufacture.
Information Plate
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| Illustration 3 | g00880195 |
C11 and C13 The Information Plate is located on the right side of the engine. The information plate is on the front half of the inlet manifold.
C15 The Information Plate is located on the front, angled portion of the cylinder head near the section of the inlet manifold.