- 1890: John M. ("Jack") Mack gets a job at Fallesen & Berry, a carriage and wagon company in Brooklyn, New York.
- 1893: John Mack and his brother, Augustus F. ("Gus") Mack, buy the company John worked for.
- 1894: A third Mack brother, William C. Mack, joins his brothers in the company's operations. The Macks try working with steam powered and electric motor cars.
- 1900s: Inspired by Orville and Wilbur Wright, Willis Carrier and Henry Ford's inventions, John Mack has a vision of producing heavy duty trucks and engines.
- 1900: The Macks open their first bus manufacturing plant. The "Mack bus", ordered by a sightseeing company, is delivered.
- 1902: The Mack Brothers Company established in New York
- 1904: The company introduces the name "Manhattan" on its products
- 1905: Allentown selected as the home of main manufacturing operations, and headquarters. A fourth Mack brother, Joseph Mack, becomes a stockholder. Mack begins making rail cars and locomotives.
- 1910: The "Manhattan" trucks are since known as "Mack" trucks. Charles Mack, a fifth Mack brother, joins the company.
- 1911: The Saurer Motor Truck Company, headed by C.P. Coleman, had the rights to manufacture and sell heavy trucks under the Saurer brand name at its plant in Plainfield, New Jersey. On September 23, 1911, the Saurer Motor Truck Company merged with the Mack Brothers Motor Car Company of Allentown, headed by J. M. Mack, to form the International Motor Truck Company (IMTC). IMTC would continue to make and sell trucks using the Saurer name until 1918. The capitalization of IMTC was $2.6 million total ($1.6m for Saurer, or 61.5%, and $1.0m for Mack Brothers).
- 1912: Brothers John and Joseph Mack leave.
- 1919: The United States Army conducts a transcontinental project using Mack Trucks to study the need for national highway systems.
- 1922: The company name is changed to Mack Trucks, Inc. The bulldog is accepted as the company's corporate symbol.
- 1924: John Mack dies in a car crash in Weatherly, Pennsylvania.
- 1932: While recuperating from an operation, Alfred Fellows Masury, Mack's chief engineer, carved the first bulldog hood ornament. Masury applied for and received a patent for his design; the bulldog ornament has adorned Mack trucks ever since.
- 1933: Mack Trucks helps in the building of many American structures, including the Hoover Dam.
- 1941: Fire Apparatus manufacturing moved from Allentown, Pennsylvania, to Long Island City, New York (in Queens).
- 1951: Fire Apparatus manufacturing moved back to Allentown, Pennsylvania, from Long Island City, New York.
- 1956: Mack Trucks, Inc., buys Brockway Motor Company. (Brockway ceases in 1977)
- 1966: Mack begins production at its assembly plant in Oakville, Ontario, Canada. The facility closed in 1993.
- 1967: Mack Trucks becomes a part of the Signal Oil and Gas Company in a one-for-one exchange for cumulative convertible preferred stock. Later that year Signal changes its name to The Signal Companies, Inc.
- 1970: Mack moves into its new Allentown world headquarters.
- 1979: Renault buys 10% of Mack Trucks, Inc.
- 1982: Renault increases ownership stake to 20%, Signal lowers its stake to 10%.
- 1983: Mack Trucks conducts an IPO and issues 15.7 million shares of common stock. Renault increases holdings to 40%, while Signal reduces its stake to 10.3%.
- 1987: Renault reorganizes; Renault Véhicules Industriels buys Renault's Mack shares.
- 1990: Mack Trucks becomes a wholly owned subsidiary of Renault Véhicules Industriels when remaining publicly traded shares acquired at $6.25 per share.
- 2001: Mack together with Renault Véhicules Industriels becomes part of Volvo AB of Sweden, the parent company Renault S. A. receives a 20% stake in the combined company. (In 2002 Renault Véhicules Industriels changes its name to Renault Trucks.)
- 2006: Mack has a record sale year.
- 2008: Mack announces relocation of corporate headquarters to Greensboro, North Carolina
This is a timeline of Mack Trucks history. Most of the information is taken from the Mack History page at MackTrucks.com, unless otherwise noted.Photos of most models 1906–1978 available at.
- 1909: A junior model 1-1/2 ton truck is introduced.
- 1910: Mack delivers the first motorized hook and ladder firetruck used by the city of Morristown, New Jersey.
- 1914: The Mack ABs are introduced
- 1916: The Mack ACs are introduced. Ultimately, over 40,000 of these models are sold.
- World War I: Mack delivers over 6,000 trucks, both to the United States and Britain's military. A legend surfaces that British soldiers would call for Mack Bulldogs to be sent when facing adversity.
- 1918: Mack becomes the first manufacturer to apply air cleaners and oil filters to their trucks.
- 1920: Mack Trucks are the first with power brakes on their trucks.
- 1922: Mack introduces first truck with drive shaft instead of chain 1922 Model AB
- 1922: International Motors Company develops gasoline-driven passenger railcar for the New York, New Haven and Hartford Railroad. A standard passenger railcar on top of a standard motor truck chassis, seating between 36 and 50 passengers, at a cost of $16,500. The car operates in a ten-mile (16 km) stretch between New Haven, and Derby, Connecticut.
- 1927: Mack's BJ and BB models built.
- 1932: The Bulldog starts to travel on the hoods of Mack trucks.
- 1934: Production of electric "trolley coaches" began, continuing only until 1943.A total of 290 trolley buses were built, with Portland, Oregon being by far the biggest customer (with 141 total).
- 1936: The Mack E series introduced. Mack Jr trucks introduced.
- 1938: Mack trucks is the first company to produce its own heavy-duty diesel engines.
- World War II: Mack trucks were used by the military in various capacities, and the company built many heavy-duty trucks to help the allied forces win the day. From 1941 to 1945, the combined armed forces of the United States, Great Britain, France, and Canada took delivery of 35,096 total vehicles. The combat "N Series" (NB, NJU, NM, NO, NR, etc.) accounted for 26,965 of the total. Commercial type vehicles including: trucks, off-highway, fire-trucks, trailers, and buses, accounted for the rest. A total of 2,053 NO models alone were produced from 1940 to 1945. The 7 1/2-ton 6x6 NO was the most important specifically military model, and could be used as a transport or tractor for the 155 mm Long Tom field gun. Mack also built over 2600 power trains for tanks. The Allentown bus plant (5C) built Vultee PBY Catalina flying boats as well as components for the BT-13 Valiant Trainer and B-24 Liberator Bombers. More than 700 NJU (5-to-6 ton 4x4) models were in the hands of the U.S. Army by 1942. In 1939 & 1940 the French and British received several hundred NR4 and EXBU models. Mack Trucks ranked 63rd among United States corporations in the value of World War II military production contracts.
- 1940: L Model series introduced, continuing until 1952.
- 1950: The Mack A Model series of trucks is introduced, produced until 1953.
- 1953: The Mack B Model series of trucks is introduced. 127,786 produced until 1966.
- 1955: The D Model low cab forward city delivery truck entered the market. Access to the engine compartment was possible by the Verti-lift cab. The cab lifted straight up hydraulically, guided by a forklift style mast behind the cab. Two styles of D Models were produced, the first styling had a square grille and no dress up trim. It was produced in 1955 and early 1956. The second styling included a styled grille, cab rear corner windows and stylish emblems and trim. The second styling was built from mid 1956 until the end of the D Model in 1958. A total of 832 D Model Mack Trucks were produced from 1955 until 1958.
- 1955: The military M123 10 ton 6X6 semi tractor went into production. Developed from the NO, it would be the US Army's standard until replaced by the M911 starting in 1976.
- 1956: Mack buys the tooling of the Ahrens-Fox Fire Engine Co. and introduced the Mack C Model cab forward fire engine which was an Ahrens-Fox design and the first of the "Cincinnati Cabs" ( later built by the Truck Cab Manufacturing Co. an OEM vendor builder of Cincinnati, Ohio), that have been the staple of the American fire service to this day.
- 1959: The first aluminum rivetted construction COE (cab-over-engine) family of trucks is introduced: The G Model which had a short production due to a striking resemblance to the Kenworth COE and Mack having the F Model ready for production. A total of 2181 G Model
- 1960: City of Hamilton, Bermuda buys first Mack built diesel-power fire truck in a B Model Chassis.
- 1962: The Second of the COE (cab-over-engine) family of trucks is introduced: The F Model all steel sleeper (FL) or non sleeper (F) is the first of this family of models for Mack.
- 1965: Mack releases the Super Pumper System, to be used by the New York City fire department. It would help put out 2,200 fires.
- 1965: The R Model Series introduced, to replace the B Model Series. Some R series models continue in production until 2005.
- 1966: The RL (for R-Western) model built at Hayward, California until 1981.
- 1967: The CF model Fire Engine introduced, replacing the C model. The CF was a cab forward adaptation of the cab over style commercial "F" Model cab.
- 1969: Mack patents the cab air suspension.
- 1975: Macungie plant opens, build the Cruise-Liner series until 1983.
- 1977: Super-Liner introduced, production runs for 15-years until 1993.
- 1978: Introduction of the low-cab-forward urban MC/MR series.
- 1979: Medium-duty model Mid-Liner introduced, built by Renault Véhicules Industriels in France. This lighter truck filled a gap at the lower end of Mack's spectrum, as they were almost unrepresented in the Class 6 segment. Before the introduction of the Mid-Liner, the smallest engine made by Mack had been the 210 hp diesel inline-six ETZ 477.
- 1982: Production of the MH Ultra-Liner model begins.
- 1988: Mack introduces the CH series for highway applications.
- 1989: E7 engine replaces E6 engine
- 1990: Fire Apparatus production ends.
- 1994: Mack introduces the LE (low entry) refuse vehicle.
- 1998: Electronic Unit Pump (EUP) replaces electronic fuel injection pump
- 1999: A new premium highway tractor is introduced: the "Vision by Mack".
- 2000: Mack builds 100 limited edition Visions with black paint and custom gold stripes and stainless badges for the 100th anniversary
- 2001: Medium-duty Freedom series introduced (built by Renault Trucks in France like its predecessor, the Mid-Liner series).
- 2001: Mack redesigns R Series dash with new gauges and buttons and door padding.
- 2001: Granite series for construction applications introduced.
- 2003: Mack pulls out of the medium-duty market and discontinues the Freedom series.
- 2006: Introduction of Pinnacle highway vehicle it is which was the replacement for the Vision highway product.
- 2007: A new product line is introduced to include Models LEU and MRU amongst others.
- 2007: Introduction of US07 compliant engines in all of its trucks.
- 2008: In March, Mack introduces the Titan, a heavy duty model with a 16-liter big-block MP10, the largest ever 6-cylinder engine from Mack, with 515, 565, and 605 horsepower (451 kW) models.
- 2010: In October Mack announced that a version of its Terrapro Cabover would run on natural gas using a Cummins Westport engine