Machinery - This principal line of business includes the design, manufacture, marketing and sales of construction, mining, and forestry machinery - track and wheel tractors, track and wheel loaders, pipelayers, motor graders, wheel tractor-scrapers, track and wheel excavators, backhoe loaders, log skidders, log loaders, off-highway trucks, articulated trucks, paving products, telescopic handlers, skid steer loaders and related parts. We also include logistics services for other companies in this line of business.

Engines - This principal line of business includes the design, manufacture, marketing and sales of engines for Caterpillar machinery; electric power generation systems; on-highway vehicles and locomotives; marine, petroleum, construction, industrial, agricultural and other applications; and related parts. Reciprocating engines meet power needs ranging from 5 to over 22,000 horsepower (4 to over 16 200 kilowatts). Turbines range from 1,200 to 20,500 horsepower (900 to 15 000 kilowatts).