![Cummins engine serial number location Cummins engine serial number location](/uploads/1/2/5/5/125535721/619753995.png)
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Locate the eight-digit serial number on your Cummins engine; it is printed on a dataplate affixed to the engine. The exact location of the dataplate varies depending the model engine, yet it's typically on the top or side of the rocker cover or housing unit. This dataplate will also have the engine's model printed on it.