Mack Trucks

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Mack Trucks, Inc.
TypeSubsidiary of AB Volvo since 2002
HeadquartersGreensboro, North Carolina
United States
Key peopleKevin Flaherty (President)[1]
Production outputMacungie, Pennsylvania
Employees5,037 (2005)
ParentAB Volvo
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For other uses, see Mack (disambiguation).
Mack Trucks, Inc.
TypeSubsidiary of AB Volvo since 2002
HeadquartersGreensboro, North Carolina
United States
Key peopleKevin Flaherty (President)[1]
Production outputMacungie, Pennsylvania
Employees5,037 (2005)
ParentAB Volvo

Mack Trucks, Inc. is an American truck-manufacturing company and a former manufacturer of buses and trolley buses. Founded in 1900 as the Mack Brothers Company, it manufactured its first truck in 1907 and adopted its present name in 1922.[2] Mack Trucks is a subsidiary of AB Volvo which purchased Mack along with Renault Trucks in 2000.[3] After being founded in Brooklyn, New York, the company's headquarters were in Allentown, Pennsylvania from 1905 to 2009, when they moved to Greensboro, North Carolina.[4] The entire line of Mack products is still produced in Macungie, Pennsylvania,[5] with additional assembly plants in Pennsylvania, Maryland, Australia, and Venezuela.


Currently, the company's manufacturing facilities are located at the Macungie Assembly Operations plant in Lower Macungie Township, Pennsylvania. Mack Trucks is a top producer in the vocational, on-road-vehicle market, Class 8 through Class 13. It is also the most popular manufacturer of heavy-duty off-road trucks in America.[citation needed]

Mack trucks have been sold in 45 countries. The Macungie, Pennsylvania, manufacturing plant, located near its former Allentown corporate headquarters, produces all Mack products. The Mack MP-series engine, Mack transmissions, the TC-15 transfer cases, and rear engine power take-offs are designed and manufactured in Hagerstown, Maryland, which, according to local historians, was the original factory location.[citation needed]

Parts for Mack's right-hand-drive vehicles are produced in Brisbane, Queensland, Australia, for worldwide distribution. Assembly for South America is done at Mack de Venezuela C.A., in Caracas, Venezuela. The Venezuela operation is a complete knock down (CKD) facility. Components are shipped from the United States to Caracas, and the plant then does final assembly.

In addition to its Macungie manufacturing facility, Mack also has a remanufacturing center in Middletown, Pennsylvania, where it takes used parts and refurbishes them for resale/reuse.

2008 restructuring plan[edit]

On August 14, 2008, Mack Trucks announced a major restructuring plan that included:[6]


Corporation timeline[edit]

This is a timeline of Mack Trucks history. Most of the information is taken from the Mack History page at, unless otherwise noted.[7]

Early bus
Mack truck used to carry ore at the Acosta Mine Museum in Real del Monte, Hidalgo State, Mexico.
Mack AC-model flatbed delivery truck at the Petersen Automotive Museum
The Hale 100-inch mirror for Mount Wilson Observatory on its way up the Mount Wilson Toll Road on a Mack Truck in 1917.
This 1939 Mack Truck that has been restored and is on display at the YRC Freight headquarters in Overland Park, Kansas.
Mack 6x4 N-model 4-to-6 ton wrecker; (photo dated 15 May 1941: National Archives c/o
Mack NO-6 artillery tractor
B Model (1953-1966)
A Mack C-49-DT bus built in 1956.
R Series (1965-2005)
MC fire engine (1978-1990)

Market, model and products timeline[edit]

This is a timeline of Mack Trucks history. Most of the information is taken from the Mack History page at, unless otherwise noted.[7] Photos of most models 1906-1978 available at.[9]


Current models[edit]

North America[edit]

List of current models produced for the North American market.[21][22]
Granite Dump truck
Pinnacle Semi tractor
TerraPro LE Refuse truck

Australia, New Zealand and South Africa[edit]

Mack Granite in Australia
List of current models produced for the Australian, New Zealand, and South African market at the Wacol, Queensland factory.[23][24]

Fire apparatus products[edit]

Mack Trucks produced fire apparatuses from 1911 until 1990.[25] Despite the abrupt shutdown of their production, many have been refurbished and still serve with fire departments throughout the world.

Some examples of Mack fire apparatus:

Fire apparatus gallery[edit]

Previous models[edit]


The heavy duty AC, with its well known tapered hood, was the truck which started the bulldog theme. A 377 cu in (6.2 L) 4 cylinder gasoline engine 4X2 with chain drive, it was strong, reliable, and worked well in rough terrain. Introduced in 1916, there was a great demand because of World War I, over 6000 3 1/2, 5 1/2, and 7 1/2 ton trucks were built for the UK and US military. There were also commercial sales from 1916, the AC was well suited for logging and construction work. A larger version, the AP, built between 1926 and 1938, was an off-road haul truck used on Boulder dam and other large projects. 40,299 ACs had been built when production ended in 1939. [7][26] [27] [28]

N Series[edit]

The N Series was Mack’s first military design, large 6 and 7 1/2 ton 6X6 artillery prime movers. Between its development in the late 1930s and the beginning of production in 1940 US military requirements changed and the truck was not needed. All NMs and most of the larger NOs were exported as foreign aid. After WWII the NO was developed into the successful M 123 semi-tractor. [29]

B Models[edit]

The B Models were Mack’s primary vehicle from its introduction in 1953 until it was replaced by the R Series in 1966. They ranged in size from the medium duty B20P gas powered 4X2 to the oversized B873SX turbo-diesel 6X6. B Models were commonly used as semi tractors and in the construction industry. They were also used as fire engines and trucks, sometimes with the roof of the cab removed. 127,786 B Models were built. [7] [30]

R/RB/RD/RL/RM/RW, U, DM/DMM Models[edit]

Mack started to produce the R, RW, and U models in 1966 for highway use, and the RD, DM, and all wheel drive RM and DMM Models for construction use. The lightweight RL model followed in 1967, the RW Superliner with a large, rectangular hood and grill in 1977, and the setback front axle RB in the 1990s. All these models featured the same cab; the U, DM, and DMM had the cab offset to the left.

In the 1990s, the R, RW, and U Models were discontinued and the RB was introduced, mostly for severe-duty applications. The hood was modified slightly for the model RB. 2004 was the last year for the RD, and 2006 for the RB and DM. The DM was the last model to use this cab style, and was the last model of this family to be produced.[31][32]

As a replacement for the construction models, Mack started to offer the Granite, Granite Bridge-Formula and Granite Axle-back.[7]

Also this model is serving in the Mexican Army as a Troop and Utility Truck in Configuration 6X6 OR 6X4


By 1916 Mack was producing 4 and 6 cylinder gasoline engines, in 2014 they continue to build their engines. Other builder’s engines were often optional, engines from Caterpillar, Cummins, Detroit Diesel, Hercules, Scania, and Waukesha have been used.

Mack started making diesels in 1938, in 1957 the END and turbocharged ENDT 673 diesel were introduced. This 672 cu in (11.0 L) I6 engine family was successful, and remained in production for over 30 years.

In the early 1960s, Mack Truck's executive vice president of product and engineering, Walter May, developed the Maxidyne high-torque rise engine. The engine was introduced as an inline six in 1966, as a V8 in 1970, and as the intercooled inline six 300 series in 1973. This was an industry-changing event. The Maxidyne, with an operating range of 1200-2100 R.P.M, and later 1050-1700 R.P.M., allowed a heavy Class 8 truck to be operated with a 5 speed (Maxitorque) transmission. Previously, heavy trucks typically operated between 1800-2100R.P.M. and were equipped with 10 or more gears.

In 2014 Mack offers three engine series, the 11 L MP 7, 13 L MP8, and 16 L MP10, with 325 hp (242 kW) to 605 hp (451 kW) and 1,200 lb·ft (1,627 N·m) to 2,060 lb·ft (2,793 N·m). [33] [34] [7] [35]

Other products[edit]

Mack also produced railroad cars and locomotives between 1905 and 1930.[36]


The company's trademark is the bulldog. It can be found on the front of almost all Mack trucks. A Mack truck with a gold-plated bulldog indicates that the entire truck is made of Mack components. Trucks with another manufacturer's transmission, engine, rear axles or suspension are given the chrome-plated bulldog.

Mack trucks earned this nickname in 1917, during World War I, when the British government purchased the Mack AC model to supply its front lines with troops, food and equipment. British soldiers dubbed the truck the "Bulldog Mack", because they said it had "the tenacity of a bulldog." Its pugnacious, blunt-nosed hood, coupled with its incredible durability, reminded the soldiers of the tenacious qualities of their country's mascot, the British Bulldog.[37][38]

The logo was first used in 1921 for the AB chain drive models and made the official corporate logo in 1922.[39]


This is a list of the highest ranking executive officer of Mack Trucks since its inception:

Mack leaderDates of service
John M. Mack1900 to 1905 and 1909 to October 17, 1911
Otto MearsApril 29, 1905, to January 9, 1906
Jacob SulzbachJanuary 9, 1906, to January 8, 1907
Thomas RushJanuary 8, 1907, to December 8, 1908
Charles P. ColemanOctober 17, 1911, to June 13, 1913
John CalderJune to October 1913
Vernon MunroeOctober 22, 1913, to May 23, 1917
Alfred J. BrosseauMay 15, 1917, to September 24, 1936
Emil C. FinkJanuary 28, 1937, to January 1, 1943
Charles T. RuhfAugust 5, 1943, to June 6, 1949
Edwin D. BransomeJune 6, 1949, to January 11, 1955
Peter O. PetersonJanuary 11, 1955, to December 31, 1958
Christian A. Johnson1958 to 1962 (acting President)
Nicholas DykstraJuly 20, 1961, to September 1, 1962
C. Rhoades McBrideSeptember 7, 1962, to January 6, 1965
Zenon C.R. HansenJanuary 7, 1965, to January 28, 1972
Henry J. NaveJanuary 28, 1972, to January 1, 1976
Alfred W. PelletierJanuary 1, 1976, to July 21, 1980
John B. CurcioJuly 21, 1980, to 1989
Ralph Reins1989 to 1990
Elios Pascual1990 to 1995
Pierre JocouMarch 1, 1995, to November 29, 1996
Michel GigouDecember 1, 1996, to July 1, 2001
Paul ViknerJuly 1, 2001, to April 1, 2008
Dennis SlagleApril 1, 2008 to January 1, 2012
Kevin FlahertyJanuary 1, 2012 to present

Notable appearances in media[edit]

Five 1970s Mack RS700 series trucks were used in the motion picture Convoy [40] starring Kris Kristofferson as Martin 'Rubber Duck' Penwald and Ali MacGraw as Melissa.

A 1970s Mack R-600 truck with a "coolpower" engine setup is used to haul an oil tanker in Mad Max 2: The Road Warrior.

Mack DM series dump trucks appeared prominently in Die Hard 3.

Maximum Overdrive (1986) is a horror tale of machinery come to life which includes a truck stop with various vehicles.

A Mack M915 (LHRT) Line-Haul Replacement Tractor (military version of the Mack Granite GU713 10-wheeler) with a (military version M970 fuel tanker) semi-trailer, will be the vehicle mode for Megatron in Transformers: Dark of the Moon.

A 1984 Mack Superliner, owned by J.R. Collins Pulling Team, is also officially sponsored by Mack. The truck (named "Buckeye Bulldog") runs in the NTPA (National Tractor Pulling Association) in the "Super Semi" class.

Dale Gribble, a character from King of the Hill, is rarely seen without his Mack cap.

In Bad Boys II (2003), a 2000 Mack CX 613 Vision truck is used by the villains.

In the film Cars, Mack is Lightning McQueen's transport, an animated 1985 Mack Super-Liner voiced by John Ratzenberger. Ratzenberger's father drove a Mack truck to deliver oil for three decades.[41] On the "Disney/Pixar Road Trip '06", which promoted the film in a four-month tour of forty-one cities, "Mack" is a 2006 CH Rawhide 460-horsepower Mack truck carrying an Eddie Paul customised Trans Am as "Lightning".

CEO Denny Slagle took part in CBS' Undercover Boss in 2011.[42]

See also[edit]


  1. ^ Press Release: "Flaherty Named President, Mack Trucks North American Sales & Marketing". - Mack Trucks. - December 19, 2011
  2. ^ "Mack Mission/Origin/Trademark". Mack Trucks Website. Retrieved 20 March 2012. 
  3. ^ "Mack Corporate History 2000 - 2009". Mack Trucks Website. Retrieved 20 March 2012. 
  4. ^ Barron, Richard M. (September 4, 2009). "Mack Moves South: Bulldog in Tow". Retrieved 2009-09-04. [dead link]
  5. ^ "Macungie Assembly Operations". Mack Trucks Website. Retrieved 20 March 2012. 
  6. ^ a b News/Events: Mack Plans Restructuring to Increase Competitiveness, Secure Long-Term Leadership Position. - News Releases 2008. - Mack Trucks. - August 14, 2008. - Retrieved: 2008-08-15
  7. ^ a b c d e f Mack History - Mack Official Website
  8. ^ "Motor Truck Merger". - New York Times. - September 23, 1911. - p.15. - Retrieved: 2008-06-16
  9. ^ Warth, Thomas E. (1998). Mack Trucks Photo Gallery. Iconografix. ISBN 1-882256-88-3. 
  10. ^ "Railroads Cut Off Short Branch Lines". - New York Times. - January 15, 1922. - p.102
  11. ^ a b Sebree, Mac; and Ward, Paul (1973). Transit’s Stepchild: The Trolley Coach, pp. 156–161. Los Angeles: Interurbans. LCCN 73-84356.
  12. ^ Peck, Merton J. & Scherer, Frederic M. The Weapons Acquisition Process: An Economic Analysis (1962) Harvard Business School p.619
  13. ^ Doyle, David (2003). Standard catalog of U.S. Military Vehicles. Kraus Publications. pp. 223–229, 245. ISBN 0-87349-508-X. 
  14. ^ Calderone, John A. (1997). The History of Fire Engines. Brompton Books Corp. pp. 62, 64, 72–74. ISBN 0-7607-0101-6. 
  15. ^ Calderone (1997), pages 67, 80.
  16. ^ Phippard, Martin (December 1978). "Intertruck: Canada". TRUCK (London: FF Publishing Ltd): 32. 
  17. ^ "AB Volvo - press release". Cision Wire. Retrieved 2006-11-15. 
  18. ^ "Mack to Launch its Biggest Model -- TITAN": Bulldog. - 2008-Volume 1. - p.9. - (Adobe Acrobat *.PDF document). - Retrieved: 2008-06-02
  19. ^ Product Brochure: Titan. - Mack Trucks. - (Adobe Acrobat *.PDF document). - Retrieved: 2008-06-02
  20. ^ "Mack unveils natural gas-powered truck". News & Record. 2010-10-26. Retrieved 2010-10-27. [dead link]
  21. ^ Mack Bulldog Line. - Mack Trucks. - (Adobe Acrobat *.PDF document). - Retrieved: 2008-06-08
  22. ^ Products. - Mack Trucks. - Retrieved: 2008-06-08
  23. ^ New Breed Range. - Mack Trucks Australia. - Retrieved: 2008-06-08
  24. ^ Hill, Liezel. - "Volvo, Mack team up for SA market". - Engineering News. - July 27, 2005. - Retrieved: 2008-06-08
  25. ^ "Cape Cod Fire Department:Mack Fire Apparatus". Retrieved 2006-10-04. 
  26. ^ "Motor Trucks of America". B.F. Goodrich. 1918. p. 148. 
  27. ^ Page, Victor Wilfred (1921). "Modern Truck, Design,Construction, Operation, Repair,…". Norman W. Henley Publishing. p. 54. 
  28. ^ Warth (1998), pp. 24-26,28-31, 35-44, 46-48.
  29. ^ Doyle (2003), pp. 205-207, 213-215.
  30. ^ Warth (1998), pp. 151-162, 164-168, 170-185, 195, 197.
  31. ^ Operators Handbook-R Series (1996) Mack Trucks, Inc page 4
  32. ^ Operators Handbook-DM, DMM, U Series (1988) Mack Trucks, Inc pages 1-5
  33. ^ Operators Handbook (1988), page 59-64
  34. ^ Warth (1998), pp. 10, 105, 176.
  35. ^ "Mack trucks powertrains". Mack Trucks. 2014. Retrieved 1 Feb 2014. 
  36. ^ Kulp, Randolph L. "History of Mack Rail Motor Cars and Locomotives." 1st ed. (1959)(Lehigh Valley Chapter, National Railway Historical Society).
  37. ^ History: 1910-1919. - Mack Trucks. - Retrieved: 2008-06-08
  38. ^ "Mack Trucks, Inc. Company Overview". - Volvo Group. - (Adobe Acrobat *.PDF document). - Retrieved: 2006-10-31
  39. ^ History: 1920-1929. - Mack Trucks. - Retrieved: 2008-06-08
  40. ^ Convoy Movie Fan site -
  41. ^ Joanna Poncavage (2006-04-22). "Mack among the stars". Morning Call. Retrieved 2012-08-06. 
  42. ^ "Mack Trucks' CEO Denny Slagle Featured On CBS' Undercover Boss". Digitriad. 
  43. ^ "FREIGHT HANDLING.". The West Australian (Perth, WA : 1879 - 1954) (Perth, WA: National Library of Australia). 30 July 1925. p. 4. Retrieved 29 October 2011. 

External links[edit]