En 1902, les frères Dodge sont approchés par Henry Ford qui cherche de l'aide pour financer sa propre société de fabrication d'automobiles. Les frères Dodge aident donc Ford à financer son entreprise. Ils deviennent les premiers actionnaires et constructeurs des moteurs de la Ford Motor Company. Au moment de la fondation de la Ford Motor Company, Henry Ford donne cinquante actions à chacun des deux frères Dodge. Lorsqu’en 1919, les frères vendent les parts Ford, ils récupérèrent la somme de 25 millions de dollars.

Dodge Brothers Motor Company
En 1914, les frères Dodge décident de créer leur propre marque, portant leur nom. La firme est ainsi fondée à Hamtramck (Michigan). Les premiers modèles ressemblent à la Ford T décapotable, mais avec quelques innovations comme un démarreur électrique. Fort de leur excellente réputation de motoristes, les commandes affluent et leur première voiture se pose pendant un temps en véritable rivale de la Ford T5. Leur slogan est «Fiable !». À la fin de 1914, 249 voitures sont construites par la Dodge Brothers Motor Company. Ils en écouleront par la suite des centaines de milliers.

Les automobiles Dodge acquièrent une réputation d'automobiles fiables et robustes. Tout naturellement, l'armée de terre américaine s'y intéresse. Le général Pershing les utilise pour la première fois lors de l'expédition punitive à l'encontre des bandits mexicains, sous les ordres de Pancho Villa, ordonné par le président Wilson au début de l'année 1916. C'est le 14 mai 1916 que le lieutenant George Patton, à la tête d'un groupe de dix hommes accompagné de deux guides mexicains dans trois voitures Dodge, ramène au poste de commandement du général Pershing, créant ainsi la sensation en faisant la une des journaux américains, les dépouilles des bras droits de Villa dont le général Bob Cardena, ficelées au garde-boue. En 1917, les deux frères se lancent dans la construction de poids lourds, au départ pour l'armée des États-Unis pendant la Première Guerre mondiale, puis pour les usages civils après la fin des hostilités. Ils appellent leur premier modèle Commercial Car : il s'agit d'un pick-up construit sur un châssis standard avec de larges ouvertures entre les côtés et le toit, qui seront remplacées par des côtés pleins par la suite.

Mort des frères
Cependant, en 1920, alors que Dodge occupe la deuxième place des ventes de voitures aux États-Unis, l'avenir de Dodge bascule du tout au tout. Terrassé par une pneumonie, John décède le 14 janvier, tandis que Horace, inconsolable et dépressif, meurt à son tour en décembre des suites de la grippe et d’une cirrhose du foie. Le troisième constructeur américain de l'époque passe alors sous le contrôle d'un groupe bancaire, en 1925. Cette même année, la société des frères Dodge est rachetée par Dillon, Read & Co. pour 146 millions de dollars, la plus importante transaction financière jamais vue à l'époque. Dillon Read revend ensuite la société à Walter Chrysler le 31 juillet 1928, Dodge fait à présent partie du groupe Chrysler.

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Dodge is an American brand of automobiles, minivans, and sport utility vehicles manufactured by FCA US LLC (formerly known as Chrysler Group LLC), based in Auburn Hills, Michigan. Dodge vehicles presently include the lower-priced badge variants of Chrysler-badged vehicles as well as performance cars, though for much of its existence Dodge was Chrysler's mid-priced brand above Plymouth.

Founded as the Dodge Brothers Company by brothers Horace Elgin Dodge and John Francis Dodge in 1900, Dodge was originally a supplier of parts and assemblies for Detroit-based automakers and began building complete automobiles in 1915, predating the founding of Chrysler Corporation. The Dodge brothers died suddenly in 1920 and the company was sold to Dillon, Read & Co. in 1925 before being sold to Chrysler in 1928. Dodge vehicles mainly consisted of trucks and full-sized passenger cars through the 1970s, though it did make some inroads into the compact car market during this time. The 1973 oil crisis and its subsequent impact on the American automobile industry led Chrysler to develop the K platform of compact to midsize cars for the 1981 model year. The K platform and its derivatives are credited with reviving Chrysler's business in the 1980s; one such derivative became the Dodge Caravan.

The Dodge brand has withstood the multiple ownership changes at Chrysler from 1998–2009, including its short-lived merger with Daimler-Benz AG from 1998–2007, its subsequent sale to Cerberus Capital Management, its 2009 bailout by the United States government, and its subsequent Chapter 11 bankruptcy and acquisition by Fiat.

In 2011, Dodge, Ram, and Dodge's Viper were separated. Dodge said that the Dodge Viper will now be an SRT product and Ram will be a manufacturer. In 2014, SRT was merged back into Dodge. Later that year, Chrysler Group was renamed FCA US LLC, corresponding with the merger of Fiat S.p.A. and Chrysler Group into the single corporate structure of Fiat Chrysler Automobiles.

Founding and early years
After the founding of the Dodge Brothers Company by Horace and John Dodge in 1900, the Detroit-based company quickly found work producing precision engine and chassis components for the city’s growing number of automobile firms. Chief among these customers were the established Olds Motor Vehicle Company and the then-new Ford Motor Company.

By 1914, Horace had created the new four-cylinder Dodge Model 30. Marketed as a slightly more upscale competitor to the ubiquitous Ford Model T, it pioneered or made standard many features later taken for granted: all-steel body construction (the vast majority of cars worldwide still used wood-framing under steel panels, though Stoneleigh and BSA used steel bodies as early as 1911); 12-volt electrical system (6-volt systems would remain the norm until the 1950s); 35 horsepower (versus the Model T's 20), and sliding-gear transmission (the best-selling Model T would retain an antiquated planetary design until its demise in 1927). As a result of this, and the brothers' well-earned reputation for the highest quality truck, transmission and motor parts they made for other successful vehicles, Dodge Brothers cars were ranked at second place for U.S. sales as early as 1916. That same year, Henry Ford decided to stop paying stock dividends to finance the construction of his new River Rouge complex. This led the Dodges to file suit to protect their annual stock earnings of approximately one million dollars, leading Ford to buy out his shareholders; the Dodges were paid some US$25 million.

Also in 1916, the Dodge Brothers' vehicles won acclaim for durability while in service with the U.S. Army's Pancho Villa Expedition into Mexico. One notable instance was in May when the 6th Infantry received a reported sighting of Julio Cárdenas, one of Villa's most trusted subordinates. Lt. George S. Patton led ten soldiers and two civilian guides in three Dodge Model 30 touring cars to conduct a raid at a ranch house in San Miguelito, Sonora. During the ensuing firefight the party killed three men, of whom one was identified as Cárdenas. Patton's men tied the bodies to the hoods of the Dodges, returning to headquarters in Dublán and an excited reception from US newspapermen.

Death of the Dodge brothers, Sale to Chrysler
Dodge Brothers cars continued to rank second place in American sales in 1920. However, the same year, tragedy struck as John Dodge was felled by pneumonia in January. His brother Horace then died of cirrhosis in December of the same year (reportedly out of grief at the loss of his brother, to whom he was very close). With the loss of both founders, the Dodge Brothers Company passed into the hands of the brothers' widows, who promoted long-time employee Frederick Haynes to the company presidency. During this time, the Model 30 was evolved to become the new Series 116 (though it retained the same basic construction and engineering features). However, throughout the 1920s Dodge gradually lost its ranking as the third best-selling automobile manufacturer, slipping down to seventh in the U.S. market.

Dodge Brothers emerged as a leading builder of light trucks. They also entered into an agreement whereby they marketed trucks built by Graham Brothers of Evansville, Indiana. The three Graham brothers would later produce Graham-Paige and Graham automobiles.
Stagnation in development was becoming apparent, however, and the public responded by dropping Dodge Brothers to fifth place in the industry by 1925. That year, the Dodge Brothers company was sold by the widows to the well-known investment group Dillon, Read & Co. for no less than US$146 million (at the time, the largest cash transaction in history).

Dillon, Read & Co. offered non-voting stock on the market in the new Dodge Brothers, Inc., firm, and along with the sale of bonds was able to raise $160 million, reaping a $14 million (net) profit. All voting stock was retained by Dillon, Read. Frederick Haynes remained as company head until E.G. Wilmer was named board chairman in November, 1926. Wilmer was a banker with no auto experience and Haynes remained as president. Changes to the car, save for superficial things like trim levels and colors, remained minimal until 1927, when the new Senior six-cylinder line was introduced. The former four-cylinder line was kept on, but renamed the Fast Four line until it was dropped in favor of two lighter six-cylinder models (the Standard Six and Victory Six) for 1928.

On October 1, 1925, Dodge Brothers, Inc., acquired a 51% interest in Graham Brothers, Inc., for $13 million and the remaining 49% on May 1, 1926. The three Graham brothers, Robert, Joseph and Ray, assumed management positions in Dodge Brothers before departing early in 1927.
Despite all this, Dodge Brothers’ sales had already dropped to seventh place in the industry by 1927, and Dillon, Read began looking for someone to take over the company on a more permanent basis. Eventually Dodge was sold to Chrysler Corporation in 1928.