An image of a RAM 6.7L Cummins mounted to the Mishimoto dyno.

Pedigreed Power – Performance Intercooler for 2019+ RAM 6.7L Cummins

After reading an article in a trade journal claiming the diesel engine would never be successful on the road, Clessie Cummins, founder of Cummins Engine Co., decided to take that statement as a challenge. In a used Packard limousine with a Cummins engine swap, Clessie and his chief engineer departed Indianapolis for the 1930 Automobile Show in New York City. They faced hundreds of miles of rough roads and terrible winter weather but arrived on time and with a fuel cost of just $1.38, only to be barred from entering the show because Cummins hadn’t registered in advance.

Determined as ever, Cummins rented space across the street from the Automobile Show to showcase his new engine—and it paid off. His engine’s reliability and comparatively low fuel consumption made it a star at the 1930 Automobile Show, despite not even technically being a part of the show. Before long, the robust and torquey appeal of his engine caught the attention of truck operators nationwide. The rest is history.
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