Caterpillar Serial Number Index
Caterpillar Serial Number
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Caterpillar Serial Number Location
Sep 26, 2016 Caterpillar serial number/ year model. The first 3 are the prefix - 04X in your case, and the next 5 are the machine Serial Number. If there are only 4 digits then put a zero before the first one. So your complete Serial Number as per today's standard is 04X02592.