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. These numbers permit accurate identification of replacement part numbers.
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| Illustration 1 | g03089778 |
| (1) Location of the Serial Number Plate | |
The Serial Number Plate is on the left side of the cylinder block near the rear of the engine.
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| Illustration 2 | g00123229 |
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Typical Serial Number Plate | |
The following information is stamped on the Serial Number Plate: engine serial number, model and arrangement number.
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| Illustration 3 | g03089777 |
| (1) Location of the Information Plate | |
The Information Plate is on the left side top surface of the cylinder block in front of the front cylinder head.
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| Illustration 4 | g00102789 |
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Typical Information Plate | |
The following information is stamped on the Information Plate: engine maximum altitude, horsepower, high idle rpm, full load rpm, fuel settings and other information.