Cummins can trace its history back to 1919, when Clessie Cummins and William G. Irwin founded the Cummins diesel engine brand. Since then, it has churned out millions of engines, with each one being ...

Pontiac engine codes, casting numbers, and date codes reveal an engine’s identity and history. Learning how to locate and interpret them can confirm whether a powerplant is factory-original or a later ...