| Mack Trucks is one of the world's | | | | heavy-duty Class 8 trucks based in |
| leading truck manufacturing companies. | | | | Kirkland, Washington, a suburb of |
| It is now a subsidiary of AB Volvo. The | | | | Seattle. It is a subsidiary of PACCAR. |
| company's headquarters are in Allentown, | | | | The brand claims to maintain an image of |
| Pennsylvania, in the Lehigh Valley | | | | high quality, it has won five of six JD |
| region of the state. The company's | | | | Power Awards in 2005 and three of four |
| primary manufacturing facility is | | | | the most recent poll. |
| located in neighoring Macungie, | | | | Kenworth has manufacturing plants in |
| Pennsylvania. | | | | Renton, Washington, Chillicothe, Ohio, |
| Mack Trucks is a top producer in the | | | | Sainte-Thérese, Quebec, and Mexicali. |
| vocational, on road, vehicle market, | | | | Founded in 1923 by Seattle businessmen |
| Class 8 through Class 13. It is also the | | | | Edgar Worthington and Harry Kent (son of |
| most popular heavy-duty off-road truck | | | | Frederick Kent, a partner in the |
| manufacturer in America. On the front of | | | | predecessor company, Gersix Motor |
| each Mack you will find the company's | | | | Company), taking the first three letters |
| distinctive logo, silver colored | | | | of "Kent" and the first five of |
| Bulldog. Mack also produces highway | | | | "Worthington", the company was born, |
| models. | | | | capitalized with $60,000. The following |
| Mack Trucks have been sold in 45 | | | | year the company sold 80 trucks. In 1933 |
| countries. The Macungie, Pennsylvania | | | | Kenworth became the first truck maker in |
| manufacturing plant, located close to | | | | the United States to switch from |
| its Allentown headquarters, produces the | | | | gasoline to diesel engines. They were |
| Mack Granite, RD, RB, CL, LE, DM, and MR | | | | one of the first to come out with a |
| models, these include the construction | | | | cab-over-engine, or COE, model in 1957. |
| and refuse series products. In Dublin, | | | | Some popular North American Kenworth |
| Virginia, the "Vison by Mack" and CH | | | | models include the T800, T600, W900, and |
| highway models are made at the New River | | | | T2000. |
| Valley Assembly plant. Engines, the | | | | During MATS 2006 Kenworth announced the |
| Maxitorque ES T300 series transmissions, | | | | new T660. It's based on the T600, with |
| the TC-15 transfer case, and rear engine | | | | superior aerodynamics and updated |
| power take-offs are designed and | | | | styling. It incorporates a completely |
| manufactured in Hagerstown, Maryland. | | | | new outer-body package including hood, |
| Mack’s right-hand drive vehicles are | | | | bumper, headlamps, grill, and chassis |
| produced in Brisbane, Queensland, | | | | fairings. The T660 will be the benchmark |
| Australia for worldwide distribution. | | | | for high quality, on-highway trucks and |
| Assembly for South America is done at | | | | maintains Kenworth's "Best in Class" |
| Mack de Venezuela C.A., in Caracas, | | | | approach. |
| Venezuela. The Venezuela operation is a | | | | The T800 has several versions, including |
| chassis knock-down (CKD) facility. The | | | | the T800SH (Short hood, 113" BBC), T800W |
| components are shipped from the United | | | | (Wide Hood, for a bigger radiator) and |
| States to Caracas and the plant then | | | | T800H (High Hood, for extra cooling |
| does final assembly. | | | | area, but not as big as the T800W). |
| In addition to its Macungie | | | | They're mainly used in construction, |
| manufacturing facility, Mack also has a | | | | off-road and special applications. |
| remanufacturing center in Middletown, | | | | In the early 2000's KW introduced to |
| Pennsylvania where it takes used parts | | | | Mexico the T604, based on the Australian |
| and refurbishes them resale/reuse. | | | | T604 with a few modifications, mostly in |
| "Built like a Mack Truck" has become | | | | the hood, it is optimized for pulling |
| part of "Americana", slang for something | | | | doubles in areas where you need a |
| "tough". | | | | powerful engine, however, the sales |
| Peterbilt Motors is a manufacturer of | | | | can't be compared to those of the T600 |
| medium and heavy-duty Class 6 though | | | | and T800. |
| Class 8 trucks headquartered in Denton, | | | | In around 2004 KW introduced also to |
| Texas. The company is a subsidiary of | | | | Mexico the KW45 and KW55, rebadged |
| PACCAR. | | | | versions of the DAF LF45 and LF55, for |
| Founded in 1939, Peterbilt operates | | | | distribution applications, a potential |
| manufacturing facilities in Madison, | | | | buyer has always been The Coca-Cola |
| Tennessee (1969), Denton, Texas (1980), | | | | Company, as they have been replacing |
| and Sainte-Thérese, Quebec. From the | | | | their old conventionals with new cabover |
| early 1960s until the mid 1980s, the | | | | trucks for shorter length with the same |
| company was based in the San Francisco | | | | cargo space or same length with more |
| Bay Area of Northern California, with | | | | cargo space. |
| its headquarters, parts department, and | | | | Australian models are assembled at |
| main plant all in Newark, California. | | | | Kenworth's Bayswater facility in |
| The Newark plant closed in 1986; | | | | Victoria, Australia. Popular models |
| headquarters moved to Denton, and | | | | include the T604, T904, T350, T401/404, |
| engineering moved to Denton in 1993. | | | | K104 (C.O.E.) and C510. |
| Kenworth is a manufacturer of medium and | | | | |