Caterpillar Serial Number Prefix

This is a list of the prefix codes for serial numbers used on Caterpillar machinery that denote model & factory of manufacture. Many use this to get a perfect match when replacing, rebuilding, or reordering Caterpillar engines and generator sets. Worldwide Power Products has a detailed list of complete specifications for each prefix code. We are here to help you find the right replacement for the parts that you need. Feel free to contact us below or call us at 713-434-2300 for any additional questions about your parts or about the units that we currently have in our inventory.

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