Common Rail Fuel Injector 10r2780 for Caterpillar Diesel Injector Compatible with Cat 3406e Engine

Caterpillar Inc. is an American construction equipment manufacturer. The company is the world's largest manufacturer of construction equipment. In 2018, Caterpillar was ranked number 65 on the Fortune 500 list and number 238 on the Global Fortune 500 list. Caterpillar stock is a component of the Dow Jones Industrial Average.

Caterpillar Inc. traces its origins to the 1925 merger of the Holt Manufacturing Company and the C. L. Best Tractor Company, creating a new entity, California-based Caterpillar Tractor Company. In 1986, the company reorganized itself as a Delaware corporation under the current name, Caterpillar Inc. It announced in January 2017 that over the course of that year, it would relocate its headquarters from Peoria, Illinois, to Deerfield, Illinois, scrapping plans from 2015 of building an $800 million new headquarters complex in downtown Peoria. Its headquarters are located in Irving, Texas, since 2022.

The company also licenses and markets a line of clothing and workwear boots under its Cat / Caterpillar name. Additionally, the company licenses the Cat phone brand of toughened mobile phones and rugged smartphones since 2012. Caterpillar machinery and other company-branded products are recognizable by their trademark "Caterpillar Yellow" livery and the "CAT" logo.

The company traces its roots to the steam tractor machines manufactured by the Holt Manufacturing Company in 1890. The steam tractors of the 1890s and early 1900s were extremely heavy, sometimes weighing 1,000 pounds (450 kg) per horsepower, and often sank into the earth of the San Joaquin Valley Delta farmland surrounding Stockton, California.   Benjamin Holt attempted to fix the problem by increasing the size and width of the wheels up to 7.5 feet (2.3 m) tall and 6 feet (1.8 m) wide, producing a tractor 46 feet (14 m) wide, but this also made the tractors increasingly complex, expensive, and difficult to maintain.