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