Cummins is an American power solutions manufacturer whose engines and related equipment serve commercial trucks, industrial machinery, and other demanding applications. Its commercial truck engine families span medium-duty delivery, regional transportation, vocational work, and heavy-duty highway hauling.

This page brings together Cummins’ history, equipment categories, company information, and links to Cummins engine profiles published on Truck Equipment Atlas.

History and Background

Cummins Engine Company was established in Columbus, Indiana, in 1919 by inventor Clessie Cummins and financier William G. Irwin. Their partnership combined engine development with the financial backing needed to build the business.

The company’s early work focused on developing practical diesel power. Clessie Cummins used demonstrations and vehicle applications to show how diesel engines could serve transportation and other working requirements.

Over the following decades, Cummins expanded its engine families and developed a broader power solutions business. Its equipment became associated with commercial trucks across multiple vehicle manufacturers rather than one truck brand alone.

Cummins’ corporate portfolio also expanded into components and other power technologies. In 2022, the company completed its acquisition of Meritor, adding drivetrain and braking capabilities while continuing to offer Meritor-branded products.

What Cummins Manufactures

Cummins’ business extends beyond truck engines into power systems and components. Truck Equipment Atlas focuses on the products most relevant to commercial transportation and equipment operation.

  • Commercial vehicle engines: Engine families serving medium-duty, heavy-duty, highway, and vocational applications.
  • Engine components: Equipment including turbochargers, fuel systems, controls, and related technologies.
  • Aftertreatment systems: Equipment used as part of engine emissions-control packages.
  • Drivetrain and braking products: Component offerings that include Meritor-branded equipment.
  • Power systems: Equipment serving electric power generation and other applications beyond commercial trucking.
  • Alternative power technologies: Products and development programs addressing different fuels and electrified power solutions.

Cummins Products on Truck Equipment Atlas

Explore the Cummins engine profiles below for equipment characteristics, configurations, applications, and operating considerations. The groups provide a browsing aid; applications can overlap according to engine generation and vehicle specification.

The library includes both newer engine families and earlier platforms. Inclusion does not indicate that an engine remains available for new vehicle orders. Additional profiles will be linked here as they are published.

Heavy-Duty Engine Profiles

  • Cummins X15 — Explore the X15 engine family and its commercial trucking applications.
  • Cummins X12 — Explore the X12 engine profile and application considerations.
  • Cummins ISX15 — Explore an earlier heavy-duty engine family represented in the commercial truck market.
  • Cummins ISM — Explore the ISM engine family and its operating characteristics.
  • Cummins N14 — Explore a historical heavy-duty diesel engine family.

Medium-Duty and Vocational Engine Profiles

  • Cummins B6.7 — Explore the B6.7 commercial engine profile.
  • Cummins ISB — Explore the ISB engine family and its applications.
  • Cummins ISC — Explore the ISC engine family and operating considerations.
  • Cummins ISL — Explore the ISL engine family and its commercial uses.
  • Cummins L9 — Explore the L9 commercial engine profile.

Technology and Product Development

Cummins engine development addresses power output, fuel use, emissions control, and integration with the completed vehicle. Engine selection must account for the truck’s transmission, cooling system, operating weight, and intended work.

The company’s broader product portfolio includes engine components, aftertreatment equipment, and alternative power technologies. These systems serve different applications and should be understood as part of the complete equipment specification.

Engine names can cover several generations with different ratings and equipment. Specifications, service requirements, and component compatibility must be checked against the individual engine’s identification information.

Company and Location Information

  • Brand and company: Cummins Inc.
  • Established: 1919.
  • Founders: Clessie Cummins and William G. Irwin.
  • Founding location: Columbus, Indiana.
  • Country of origin: United States.
  • Headquarters: Columbus, Indiana.
  • Official website: Cummins Inc..

Cummins operates a global manufacturing, distribution, and service network. Production and support locations differ by product family and market.

Related Brands and Equipment

Meritor-branded drivetrain and braking equipment forms part of Cummins’ component business. Its separate product identity helps readers distinguish those components from Cummins engine families.

TEA also covers Eaton Cummins Endurant transmission profiles. These are listed below as related equipment rather than included in the Cummins engine directory. Compatibility depends on the complete truck and powertrain specification.

Related Equipment Guides

Explore existing Truck Equipment Atlas guides for additional information about engines, transmissions, and truck configurations.

Official Manufacturer Resources

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