Mack Trucks

Mack Truck
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. Mack Trucks is a subsidiary of AB Volvo which purchased Mack along with Renault Trucks in 2000. 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. The entire line of Mack products is still produced in Lower Macungie, Pennsylvania, with additional assembly plants in Pennsylvania, Maryland, Australia, and Venezuela.

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List of current models produced for the North American market.

Construction Series:
- Granite
      - Granite Axle Back
- TerraPro Cabover

Heavy Duty:
- Titan

Highway Series:
 - Pinnacle:
      - Pinnacle Sleepers
      - Pinnacle Axle Forward
      - Pinnacle DayCab
      - Pinnacle Rawhide
- Granite
- Smartway

Refuse Series:
- LR
- TerraPro Cabover
- TerraPro Low Entry
- Granite Axle Back
- Granite

- Granite Armored Line Haul
- Kerax 8 x 8

By 1916 Mack was producing 4- and 6-cylinder gasoline engines, and through 2014 continued to offer their own, in the form of three diesel V8s. Engines by other manufacturers were often optional, supplied over the years by Caterpillar, Cummins, Chrysler, Detroit Diesel, Hercules, Scania, and Waukesha.

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). 

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