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Cummins Inc. is an American company with global operations that specializes in designing, manufacturing, and distributing engines, filtration, and power generation products. Cummins is known for its diesel and natural gas engines, which are used in a wide variety of applications including trucks, buses, RVs, and industrial uses. Additionally, the company offers new parts and remanufacturing services as part of its distribution segment. The company is headquartered in Columbus, Indiana, and its shares are traded on the NYSE.

The H Series Engine

Cummins Engine Company was established in Columbus, Indiana, on February 3, 1919, by mechanic Clessie Cummins and banker William Glanton Irwin. The company initially focused on refining and advancing the diesel engine, which had been invented two decades earlier. Despite conducting several notable endurance trials, it wasn't until 1933 that Cummins achieved significant success with their Model H engine, which was utilized in small railroad switchers. Post-World War II, the Cummins N Series engines gained substantial traction in the United States' road-building boom, dominating over half of the heavy-duty truck market from 1952 to 1959. The company has expanded internationally, and today supplies engines and parts to customers all over the world. Today, the company competes in engines against companies such as Volvo and Caterpillar.

The Engines

The company is most known for its production of engines, used in a wide array of different vehicles. The company builds and sells engines used in mid and heavy-duty vehicles, such as trucks and buses, as well as for industrial use in sectors such as mining, railroad, marine, military, and similar fields. One of the company’s most successful products is the Cummins series B engine, which has been in production in various iterations since the mid-1980s. These engines saw extensive use in various mass-transit buses and the Dodge/RAM series of pickup trucks (owned by Stellantis).

Associated Products and Services

Cummins Inc. is not just limited to engines; it offers a diverse range of products and services beyond its core engine business. The company is a major player in the production of power generation systems, including generators and alternators, built for various industrial, commercial, and residential uses. Cummins also develops and supplies advanced filtration and exhaust systems for use in vehicles.