Caterpillar is a global manufacturer of construction and mining equipment, engines, and power systems. Its products are widely recognized under the Cat brand, including diesel engines that have powered generations of commercial trucks.
Truck Equipment Atlas focuses on Caterpillar’s connection to trucking through its engine profiles, equipment applications, and ownership considerations. These resources help drivers, owner-operators, fleet managers, technicians, and equipment buyers explore Cat engines found in existing commercial vehicles.
History and Background
Caterpillar was established in 1925 through the merger of the Holt Manufacturing Company and the C. L. Best Tractor Company. The combined business became the Caterpillar Tractor Company, building on the founders’ experience with tractors and tracked equipment.
Over the following decades, Caterpillar expanded into construction machinery, mining equipment, diesel engines, and power generation. Its engines also became an important part of commercial trucking, with product families serving medium-duty, highway, vocational, and heavy-haul applications.
Caterpillar’s trucking legacy continues through engines operating in existing vehicles and through parts, repair, rebuild, and remanufactured engine support. These engines remain relevant to owners evaluating older trucks and maintaining equipment already in service.
What Caterpillar Manufactures
Caterpillar’s overall product portfolio extends across transportation, construction, mining, energy, and industrial applications. Truck Equipment Atlas currently concentrates on the company’s commercial truck engine coverage.
- Construction and earthmoving equipment.
- Mining machinery and off-highway hauling equipment.
- Diesel and gas engines for supported equipment applications.
- Power generation equipment and related systems.
- Replacement parts and remanufactured components.
- Remanufactured engines and repair options for supported legacy on-highway truck engines.
Caterpillar Products on Truck Equipment Atlas
Explore the Caterpillar engine profiles currently available on Truck Equipment Atlas. Each page provides a starting point for understanding the engine family, its trucking applications, and relevant ownership considerations.
Medium-Duty and Vocational Engines
- Caterpillar C7 — Diesel engine coverage for medium-duty and vocational truck applications.
- Caterpillar C9 — Diesel engine coverage for supported commercial truck and vocational applications.
Heavy-Duty Engines
- Caterpillar C12 — Heavy-duty diesel engine coverage for highway and vocational trucks.
- Caterpillar C13 — Heavy-duty engine coverage for commercial hauling applications.
- Caterpillar C15 — Heavy-duty diesel engine coverage associated with highway, vocational, and heavy-haul trucking.
- Caterpillar 3406 — Legacy heavy-duty engine family found in older commercial trucks.
Technology and Product Development
Caterpillar truck engines span multiple generations of fuel delivery, electronic controls, and emissions equipment. Engines sharing a family name can differ in ratings, components, and service requirements, making the engine serial number and original application important when comparing equipment.
For engines already in service, Caterpillar provides repair and remanufacturing options through its support network. The appropriate choice depends on the engine’s condition, configuration, available replacement components, and the owner’s operating needs.
Company and Location Information
- Company: Caterpillar Inc.
- Primary equipment brand: Cat.
- Established: 1925.
- Corporate headquarters: Irving, Texas, United States.
- Primary industries: Construction, mining, energy, transportation, and industrial equipment.
- Current TEA coverage: Six commercial truck engine profiles.
Related Brands and Equipment
Caterpillar engines have appeared in trucks from several manufacturers. When researching a particular vehicle, confirm its model year, original engine specification, and any replacement history rather than assuming that every truck of the same model has the same engine.
- Commercial Trucks — Explore truck manufacturers, models, and applications.
- Engines — Compare Caterpillar coverage with other commercial engine manufacturers.
- Transmissions — Explore equipment that transfers engine power through the drivetrain.
Related Equipment Guides
Use these guides alongside the Caterpillar product profiles to learn more about diesel engines, truck applications, and transmission selection.
Official Manufacturer Resources
Visit Caterpillar’s official resources for company information, equipment coverage, and support for Cat on-highway truck engines.