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| logo = Kenworth logo.png
| logo_caption = Kenworth "KW" emblem and name badge
| image =
| image_caption = A [[Kenworth W900]] – a family of models lettered W after founder, Edgar Worthington, whose name is the "worth" in Kenworth<ref name=NRTHoF>{{citation |url=https://roadtransporthall.com/yesterdays-workhorses/kenworth |title=Kenworth |publisher=National Road Transport Hall of Fame}}</ref>
| type = [[Division (business)|Division]]
| industry = [[Manufacturing]]
| products = [[#Current models|See listing]]
| revenue =
| num_employees =
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| foundation = {{start date and age|1923}} in [[Seattle, Washington]], U.S.
| location = [[Kirkland, Washington]], U.S.
| founders =
| homepage = [https://www.kenworth.com/ www.kenworth.com]
}}
[[File:Australian Kenworth unloading cattle on a farm in NSW. .jpg|alt=A Australian Kenworth unloading cattle on a farm in NSW.|thumb|An [[Australia|Australian]] Kenworth T659 unloading cattle
[[File:1985_Kenworth_K_124CR.jpg|thumb|A 1985 Kenworth K 124CR]]
'''Kenworth Truck Company''' is an [[List of American truck manufacturers|American truck manufacturer]]. Founded in 1923 as the successor to Gersix Motor Company, Kenworth specializes in production of heavy-duty ([[Truck classification#Class 8|Class 8]]) and medium-duty (Class 5–7) commercial vehicles. Headquartered in the [[Seattle]] suburb of [[Kirkland, Washington]], Kenworth has been a wholly owned subsidiary of [[Paccar|PACCAR]] since 1945,<ref>{{Cite web|title=About Us {{!}} PACCAR|url=https://www.paccar.com/about-us/get-to-know-paccar/|access-date=2020-07-24|website=www.paccar.com}}</ref> operating alongside sister company (and marketplace rival) [[Peterbilt|Peterbilt Motors]].
Kenworth marked several firsts in truck production; the company introduced a raised-roof sleeper cab, and the first heavy-duty truck with an aerodynamically optimized body design.<ref>{{Cite web|title=Kenworth Trucks - The World's Best ®|url=https://www.kenworth.com/about-us/history/|access-date=2020-07-24|website=www.kenworth.com}}</ref> The [[Kenworth W900]] has been produced continuously since 1961, serving as one of the longest production runs of any
==History==
=== 1912-1923: Gerlinger Motors ===
Kenworth traces its roots to the 1912 founding of Gerlinger Motors in [[Portland, Oregon]]; the company was a car and truck dealership owned by brothers [[George T. Gerlinger]] and Louis Gerlinger, Jr.<ref name=":0">{{cite web|title=History of Kenworth Trucks|url=https://dietersaccessories.com/history-kenworth-trucks/|access-date=24 July 2020|archive-date=28 February 2021|archive-url=https://web.archive.org/web/20210228160106/https://dietersaccessories.com/history-kenworth-trucks/|url-status=dead}}</ref> In 1914, the brothers expanded into vehicle manufacturing, marketing a truck named the Gersix.<ref name=":0" /> Deriving its name from its inline six-cylinder engine (one of the first trucks equipped with the type<ref name=":0" />), the Gersix was framed in structural steel, intended for commercial use.<ref name="ken">[http://www.kenworth.com/7100_ken.asp Kenworth History] {{webarchive|url=https://web.archive.org/web/20071002121537/http://www.kenworth.com/7100_ken.asp|date=2007-10-02}} - at Kenworth.com</ref>
While the first vehicle was completed largely as a side project, the heavy-duty construction of the Gersix found itself in demand by loggers in the Northwest.<ref name=":0" /><ref name="ken" /> In 1916, Gerlinger Motors relocated from Portland to [[Tacoma, Washington]], leasing a building from Seattle businessman Edgar K. Worthington.<ref name=":0" />
In 1917, Gerlinger Motors filed for bankruptcy and was put up for sale, with E.K. Worthington acquiring the company with business partner Captain Frederick Kent.<ref name="ken" /><ref name=":1" /> To emphasize its connection to truck manufacturing, the company was renamed Gersix Motor Company.<ref name="ken" /> In 1919, Captain Kent retired, with his son Harry Kent replacing him as partner in the company.<ref name="ken" />
In 1922, Gersix produced 53 trucks in its final year located at its factory on Fairview Avenue at Valley Street.<ref name=":1" /> Following continued strong demand of the model line, the company found itself with $60,000 to reincorporate and relocate its headquarters.<ref name="ken" />
=== 1923-1930s: Kenworth Motor Truck Company ===
In January 1923, Gersix Motor Company was reincorporated as the Kenworth Motor Truck Company, combining the names of partners '''Ken'''t and '''Worth'''ington.<ref name=":1">{{cite web|url=http://www.historylink.org/essays/output.cfm?file_id=3192|title=Kenworth Motor Truck Corporation incorporates in Seattle in January 1923.|access-date=9 July 2018}}</ref> Under the new name, the company relocated within Seattle to 506 Mercer Street, and later to 1263 Mercer Street.<ref name=":1" /> In contrast to car manufacturers, Kenworth abstained from assembly lines, instead constructing vehicles in individual bays.<ref name=":1" /> The company also introduced a practice of building vehicles to customer specification (a practice still offered by Kenworth today).<ref name="ken" />
In 1926, Kenworth expanded its product line, introducing its first bus. In 1927, production was increased from two vehicles a week to three; the same year, manufacturing began in Canada (to avoid import taxes).<ref name="ken" />
In 1929, E.K. Worthington retired, with Harry Kent becoming company president. In another change, to accommodate increased demand, Kenworth relocated to a larger factory within Seattle.<ref name=":2">{{Cite web|title=Kenworth Trucks - The World's Best ®|url=https://www.kenworth.com/about-us/history/|access-date=2020-11-14|website=www.kenworth.com}}</ref>
The onset of the Great Depression hit the company hard; initially in good financial health, a substantial decline in new vehicles and a high rate of vehicle loan defaults forced the company to adapt.<ref name="ken" /> In 1932, Kenworth produced its first [[Fire engine|fire truck]]; adapted from its commercial truck, Kenworth fire engines were among the heaviest-duty fire apparatus of the time.<ref name="ken" />
In 1933, diesel engines became standard equipment, replacing gasoline engines entirely;<ref name=":2" /> at the time, diesel fuel cost {{Fraction|1|3}} the price of gasoline.<ref name="ken" /> In another design innovation, Kenworth introduced the first factory-produced sleeper cab.<ref name="ken" /><ref name=":2" />
In 1935, the [[Motor Carrier Act of 1935|Motor Carrier Act]] was passed, introducing new size and weight regulations for the trucking industry in the United States;<ref name="ken" /> to comply with the legislation, Kenworth underwent an extensive redesign of its truck line. To match weight regulations, the new trucks received aluminum cabs and axle hubs; four-spring suspension was introduced, with torsion bars for the rear axles.<ref name="ken" /> In 1936, Kenworth introduced the Model 516, its first cabover (COE) truck; the tandem-axle 346 was introduced for 1937.<ref name=":3">{{Cite web|title=Kenworth History 1936 - 1944|url=http://www.kenworth.com/7100_ken_1.asp|access-date=2020-11-14|archive-url=https://web.archive.org/web/20070928024738/http://www.kenworth.com/7100_ken_1.asp|archive-date=2007-09-28}}</ref><ref>{{Cite web|title=Kenworth 346 / 516 (Commercial vehicles) - Trucksplanet|url=https://trucksplanet.com/catalog/model.php?id=1085|access-date=2020-11-14|website=trucksplanet.com}}</ref> In 1937, Harry Kent died, with Philip Johnson becoming company president.<ref name=":3" />
=== 1940s: War production and company sale ===
In 1939, Kenworth introduced its 500-series trucks, which would form the basis of its commercial truck line into the mid-1950s.<ref>{{Cite web|title=Kenworth series 500 (Commercial vehicles) - Trucksplanet|url=https://trucksplanet.com/catalog/model.php?id=169|access-date=2020-11-14|website=trucksplanet.com}}</ref> By the end of the 1930s, demand for trucks began to recover, with Kenworth producing 226 trucks in 1940.<ref name=":3" />
Following the onset of World War II, Kenworth converted to war production, supplying the Army with 4-ton 6x6 M-1 recovery vehicles.<ref name=":3" /> In 1943, the company became a supplier for Boeing, manufacturing components for the B–17 and B– 29 bombers.<ref name=":1" /><ref name=":3" /> To maintain its government contracts, Kenworth commenced production of the M-1 wrecker at a temporary facility in Yakima, Washington.<ref name=":3" /> In total, the company would supply the Army with 1,930 wreckers by the end of World War II; to accommodate the extensive increase in production, Kenworth introduced an assembly line to produce the vehicle.<ref name=":3" />
In 1944, company president Phil Johnson died, leaving ownership split between his wife, and the surviving wife of Harry Kent and another company director.<ref name=":3" /> Uninterested in owning the company, all three initially planned to offer their ownership to company employees, but financing for the offer was never completed. In 1945, ownership of the company changed as [[Paccar|Pacific Car and Foundry Company]] negotiated its purchase of Kenworth as a wholly owned subsidiary.<ref name=":3" /> By the end of 1946, Kenworth relocated again, following the purchase of a former Fisher Body factory by Pacific Car and Foundry;<ref name=":1" /> this would house all Kenworth manufacturing under a single roof.<ref name=":4">{{Cite web|date=2001-04-22|title=Kenworth|url=http://www.kenworth.com/7100_ken_2.asp|access-date=2020-11-14|archive-url=https://web.archive.org/web/20010422171358/http://www.kenworth.com/7100_ken_2.asp|archive-date=2001-04-22}}</ref>
In 1948, Kenworth redesigned the cab of its COE product line, later nicknamed the "Bull-nose" 500-series.<ref>{{Cite web|title=Kenworth series 500 "Bull Nose" (Commercial vehicles) - Trucksplanet|url=https://trucksplanet.com/catalog/model.php?id=184|access-date=2020-11-14|website=trucksplanet.com}}</ref>
=== 1950s: Market expansion ===
By 1950, Kenworth had grown outside the Pacific Northwest, marketing vehicles across the western half of the United States and across nearly 30 countries worldwide.<ref name=":4" /> In 1951, the company received an order for 1,700 Model 853s from [[ARAMCO]] in the Middle East.<ref name=":4" /><ref>{{Cite web|title=Kenworth 853 (Offroad vehicles) - Trucksplanet|url=https://trucksplanet.com/catalog/model.php?id=203|access-date=2020-11-14|website=trucksplanet.com}}</ref> The Model 801 was introduced as an earth-moving dump truck, adopting one of the first cab-beside-engine configurations.<ref name=":4" /><ref>{{Cite web|title=Kenworth 801 / 802 (Offroad vehicles) - Trucksplanet|url=https://trucksplanet.com/catalog/model.php?id=207|access-date=2020-11-14|website=trucksplanet.com}}</ref>
In 1955, Kenworth began the redesign of its COE product line, launching the CSE (Cab-Surrounding-Engine); in line with the Bull-nose, the CSE shared its underpinnings with the 500-series trucks and did not have a tilting cab.<ref>{{Cite web|title=Kenworth CSE (Commercial vehicles) - Trucksplanet|url=https://trucksplanet.com/catalog/model.php?id=181|access-date=2020-11-14|website=trucksplanet.com}}</ref>
In 1956, Pacific Car and Foundry revised its ownership of Kenworth, changing it from an independent subsidiary to a division.<ref name=":4" /> The same year, the 900-series was introduced with an all-new "drop-frame" chassis,<ref name=":4" /> with the CSE cabover replaced by the K-series COE (derived from the 900 series).<ref name="trucksplanet.com">{{Cite web|title=Kenworth K series 500 / K series 900 / later - K100 (Commercial vehicles) - Trucksplanet|url=https://trucksplanet.com/catalog/model.php?id=180|access-date=2020-11-15|website=trucksplanet.com}}</ref> In 1957, Kenworth ended bus production, selling the rights to its product line (see below).
In 1958, Kenworth became a sister company to [[Peterbilt]], as the latter company was acquired by Pacific Car and Foundry. In 1959, the company further expanded its sales base, establishing facilities in Mexico.<ref name=":4" />
=== 1960s: W900 and K100 ===
For 1961 production, Kenworth underwent a substantial revision of its commercial truck line, debuting the W900 and the K900 (later renamed the K100); the W and K model prefixes are derived from company founders Worthington and Kent.<ref name=":2" /><ref name=":4" /> The W900 debuted the first complete redesign of the Kenworth conventional cab since 1939 with a standard tilting hood.<ref name=":4" /> Similar in appearance to the previous K500, the K900/K100 received a taller cab and the doors of the W900.<ref
To meet increased demand for the new product lines, Kenworth opened a new assembly facility in Kansas City, Missouri, in 1964.<ref name=":4" /> From 1964 to 1966, Kenworth nearly doubled its yearly truck sales.<ref name=":5">{{Cite web|date=2001-04-22|title=Kenworth|url=http://www.kenworth.com/7100_ken_3.asp|access-date=2020-11-15|archive-url=https://web.archive.org/web/20010422170926/http://www.kenworth.com/7100_ken_3.asp|archive-date=2001-04-22}}</ref> In 1968, the company established Kenworth Australia; in place of importation and conversion, right-hand drive trucks were produced and developed in Melbourne, Australia.<ref name=":5" /> In 1969 Kenworth hired [[Gary Ridgway]], who worked in their paint department for the next 32 years, during which time he murdered 48 women as the "Green River Killer"<ref>Green River, Running Red
The Real Story of the Green River Killer—America's Deadliest Serial Murderer By Ann Rule</ref>
=== 1970s: Product line diversification ===
During the 1970s, the company underwent further expansion, adding an all-new facility in Chillicothe, Ohio, in 1974. The W900 and K100 underwent their most substantial revisions, becoming the W900A and K100C.
Coinciding with the 50th anniversary of the company, annual Kenworth sales exceeded 10,000 for the first time for 1973.<ref name=":2" /><ref name=":5" />
For 1976, Kenworth launched a flagship customization series, the VIT (Very Important Trucker) with a high level of interior features; distinguished by its skylight windows, the Aerodyne sleeper cab was the first factory-produced sleeper cab with stand-up headroom (for both the W900 and K100).<ref name=":2" /> To commemorate the American Bicentennial, the VIT series was introduced in a limited-edition series of 50 (with each truck named after a state).<ref name=":5" />
=== 1980s-1990s
In 1982 and 1984, respectively, the W900 and K100 underwent their most substantial revisions, becoming the W900B and K100E. While visually distinguished by the adoption of rectangular headlamps, the updates were centered around upgrading fuel economy, road handling, and reliability.<ref name=":5" />
In 1985, the Kenworth T600 was released by the company; in contrast to the W900, the T600 was designed with a set-back front axle and a sloped hoodline. While the latter initially proved controversial, the combination improved aerodynamics, fuel efficiency, and maneuverability.<ref name=":5" /> Intended as an expansion of the Kenworth model line, the success of the T600 would lead to the introductions of similar designs from multiple American truck manufacturers. In 1986, the T800 was introduced, adapting the sloped hoodline and set-back front axle for a heavy-duty chassis; the shorter-hood T400 was introduced in 1988 as a regional-haul tractor.<ref name=":5" />
In 1987, Kenworth introduced the Mid-Ranger COE, its first medium-duty truck. Shared with Peterbilt, the Brazilian-produced Mid-Ranger was derived from the MAN G90 (a wide-body version of the [[Volkswagen LT]]<ref>{{Cite web|title=From LT to Worker - Volkswagen's Versatile, Long-lasting "LT" Cab|url=https://www.bigmacktrucks.com/topic/35895-from-lt-to-worker-volkswagen%E2%80%99s-versatile-long-lasting-%E2%80%9Clt%E2%80%9D-cab/|access-date=2020-11-16|website=BigMackTrucks.com|date=29 May 2014 |language=en-US}}</ref>). In 1992, the Mid-Ranger became the K300, as PACCAR shifted production to [[Sainte-Thérèse-de-Gaspé, Quebec|Sainte-Thérèse, Quebec]].<ref name=":5" />
In 1993, Kenworth opened its facility in Renton, Washington, as its third United States assembly plant.<ref name=":5" />
In 1994, the T300 was introduced as the first Kenworth medium-duty conventional truck, adapting the T600 to a lower-GVWR Class 7 weight rating.<ref name=":5" /> The Aerocab sleeper was introduced, integrating the Aerodyne II sleeper cab and the drivers' cab as a single unit.<ref name=":5" />
In 1996, Kenworth introduced the T2000 as its next-generation aerodynamic conventional.<ref name=":2" /> While not directly replacing the T600 and W900, the T2000 was a completely new design (the first from Kenworth since 1961).<ref name=":5" /> The first "wide-body" Kenworth conventional, the model shared its cab with Peterbilt, distinguished by its bumper-mounted headlamps. The T2000 was discontinued in 2010.
In 1998, parent company PACCAR purchased British truck manufacturer Leyland Trucks, two years after Dutch manufacturer [[DAF Trucks]] (the two had been merged as [[Leyland DAF]] from 1987 to 1993). Within PACCAR, DAF would develop COE trucks for Kenworth and Peterbilt.
=== 2000s-present: 21st-century trucks ===
In 2000, Kenworth redesigned its medium-duty COE range, with the K300 replacing the MAN-sourced design with a DAF 45 (Leyland Roadrunner) cab. Following declining demand for Class 8 cabovers, the K100E was quietly phased out after 2002 production in North America; Kenworth Australia continuing production of the model line.
In 2006, the company released the K500, the largest COE ever produced by the company. Developed primarily for off-highway applications, the K500 combined the chassis of the heavy-duty C500 and the COE cab of the [[DAF XF]]; all examples produced from 2006 to 2020 were sold for export.<ref>{{Cite web|date=2020-08-13|title=Kenworth retiring K500 severe-service truck after 14 years|url=https://www.freightwaves.com/news/kenworth-retiring-k500-severe-service-truck-after-14-years|access-date=2020-11-16|website=FreightWaves|language=en-US}}</ref>
In 2008, Kenworth underwent a modernization of its model line. The T600 underwent a substantial revision to its aerodynamics, becoming the T660. The medium-duty T300 was replaced by the Class 5-7 T170/T270/T370 model family. The low-cab COE made its return, based on the [[DAF LF]]. Initially marketed as the K260/K360, the model line was renamed the K270/K370 for 2013. The T660 would be discontinued in 2017.
For 2011 production, the T700 replaced the T2000, adopting a larger grille and fender-mounted headlamps.<ref name=":2" /> For 2013 production, the T680 was introduced as the third-generation aerodynamic Kenworth conventional,<ref name=":2" /> serving as a single replacement for the narrow-body T660 and the wide-body T700. The T700 was discontinued in 2014 while the T660 was discontinued in 2017 (32 years after the introduction of the T600). Sharing the same cab as the T680, the T880 was introduced as the first wide-body Kenworth for vocational applications,<ref name=":2" /> alongside the W900S and the T800 model family.
In 2018, the W990 was introduced as the flagship conventional of the Kenworth model line.<ref>{{cite press release |title=Own the Road: Kenworth Launches New Long-Hood Conventional – The W990 |url=https://www.kenworth.com/about-us/news/w990-main/ |website=Kenworth |access-date=10 April 2021 |date=28 September 2018}}</ref> Sharing the wide-body cab of the T680 and T880, the W990 is the longest-hood conventional ever produced by Kenworth. As of current production, the W900 remains part of the Kenworth model line (six decades after its introduction).
For 2021 production, Kenworth introduced three model lines of electric vehicles, with the K270E, K370E, and T680E powered by battery-electric powertrains.<ref>{{cite press release |title=Zero-Emission Kenworth K270E and K370E Battery-Electric Vehicles Available for Order |url=https://www.kenworth.com/about-us/news/electric-trucks-available/ |website=Kenworth |access-date=10 April 2021 |date=11 September 2020}}</ref><ref>{{cite press release |title=Kenworth Launches Its First-Ever Class 8 Battery-Electric Model – Kenworth T680E |url=https://www.kenworth.com/about-us/news/t680e/ |website=Kenworth |access-date=10 April 2021 |date=14 October 2020}}</ref> In 2021, Kenworth launched the T680 [[Fuel cell vehicle|FCEV]] with a 10 vehicle demonstration fleet in [[California]].<ref>{{cite press release |title=Kenworth Video Stars Zero Emissions Kenworth T680 FCEV on the Climb to 14,115-Foot Pikes Peak Summit |url=https://www.kenworth.com/about-us/news/pikes-peak-video/ |website=Kenworth |access-date=10 April 2021 |date=11 January 2021}}</ref> The T680 FCEV is powered with a [[Toyota]] hydrogen [[fuel cell]], has six hydrogen tanks and a driving range over {{convert|300|mi}} at a full load weight of {{convert|80000|lb|kg}}.<ref>{{cite press release |title=Toyota Moves Closer to Production with Next Generation Fuel Cell Electric Technology for Zero-Emissions Heavy Duty Trucks |url=https://global.toyota/en/newsroom/corporate/34464066.html |website=Toyota |access-date=10 April 2021 |date=11 December 2020}}</ref>
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==Current models==
{{See also|List of Kenworth
=== Current products ===
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====Australia====
[[File:Kenworth T650 tow truck.jpg|thumb|Kenworth T650, used as a heavy vehicle tow truck]]
The headquarters for Kenworth Australia is located in [[Bayswater, Victoria]] where all Australian models are assembled. The first Kenworth model in Australia was the KWS925, imported fully built in 1962. Soon later, Kenworths were imported in complete [[knock-down kit]]s and assembled in [[Preston, Victoria]].<ref>{{cite web | url=
The T range includes the bonneted conventional models and the C for heavy haulage, mining, off-road and road train use, and the K range covers the cab over models. As of July 2020 the only models that do not have Twin-Steer configurations are T410 SAR, T610 SAR, T900, C510{{not a typo}}, C540
Kenworth Australia started building the new range of trucks tying in their 2008 release with the model range being the '08 Series'. This includes the following [[conventional]] (bonneted) models; in approximate order of smallest to largest: the T358/A, T408SAR, T408, T608, T658, T908 and C508{{not a typo}}. The only cab over truck built was the K108, which was very popular in the [[B-Double]] market segment owing to its shorter length.{{citation needed|date=December 2011}}▼
▲The T range includes the bonneted conventional models and the C for heavy haulage, mining, off-road and road train use, and the K range covers the cab over models. As of July 2020 the only models that do not have Twin-Steer configurations are T410 SAR, T610 SAR, T900, C510, C540.
===== Legend Series =====
▲Kenworth Australia started building the new range of trucks tying in their 2008 release with the model range being the '08 Series'. This includes the following [[conventional]] (bonneted) models; in approximate order of smallest to largest: the T358/A, T408SAR, T408, T608, T658, T908 and C508. The only cab over truck built was the K108, which was very popular in the [[B-Double]] market segment owing to its shorter length.{{citation needed|date=December 2011}}
The Kenworth "Legend" Series is a limited production truck based on a previous models styling with modern improvements such as safety and environmental. Originally commencing in 2015 with the Kenworth T950 Legend, inspired by the Kenworth T950 that was in production from 1992 - 2007. This model of Kenworth Legend had 75 produced and sold out in 48 hours. The T950 Legend also came with a special edition Cummins ISXe5 engine which was painted in Cummins Heritage Beige.
2017 Saw the second truck in the Kenworth Legend Series released, that being the Kenworth T900 Legend inspired by the 1991 Kenworth T900. There were 257 Kenworth T900 Legends produced, The T900 Legend came with a special edition Cummins X15 painted in black and red to commemorate the Cummins N14{{not a typo}} that many of the original T900 came with.
Current Australian Kenworth models include: ▼
In 2021 the third truck in the Kenworth Legend Series was released this being the SAR Legend, a homage to the W900 SAR that was produced from 1975 until 1987. The SAR Legend has sales orders of over 700, a final number currently has not been released. The special edition Cummins X15 in the Kenworth SAR Legend is painted in Cummins Heritage Beige, similar to the Cummins Big Cam which were in many of the original Kenworth SARs.
Previous Australian Kenworth models include:
T300 Series - T300, T350, T358, T359, T388
T400 Series - T400, T401, T401 ST, T402, T403, T404/SAR, T408/SAR, T409/SAR (T450, T480)
T600 Series - T600, T601, T604, T608, T609
T650 Series - T650, T658
T900 Series - T900 Classic, T904, T908, T900 Legend
T950 Series - T950, T950 Tradition, T950 Legend
K Series - K100, K123, K124, K125, K100E, K100G, K104, K104B, K108, K200
T Series - T360, T410, T410 SAR, T610, T610 SAR, T659, T909
C Series - C509{{not a typo}}, C510{{not a typo}}, C540{{not a typo}}
K Series -
{{clear}}
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==Bus production==
Bus production was a mainstay at Kenworth during the early years of company history; at one time, buses were its most lucrative form of business. When the company was still known as Gerlinger Motor Car Works, their first two full-chassis vehicles were school buses based on the Gersix truck chassis.
===1920s===
====BU series====
In 1926, Kenworth developed a chassis specifically for school and transit bus operators, known as the BU. The BU model sported a wheelbase of {{convert|212|in|mm}} that was expanded two more inches in 1927, and could be fitted with bodies ranging from 21 to 29 passengers. The BU model also heralded the return of the [[Buda Engine Co.|Buda]] six-cylinder engine, and remained the company's principal offering through 1931. The new model became so popular in the Pacific Northwest that production rose from 99 units in 1927 and 127 units in 1927, to 230 units by 1930.
By that time, the predominant number of BU models produced were sent to school bus body builders and were built for use in school districts throughout the [[Seattle]] and [[Puget Sound]] area of [[Washington (state)|Washington state]].{{citation needed|date=December 2011}}
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=== 1940s ===
At the beginning of the decade, bus customers began to decline in number, but the company received larger orders as several regional operators consolidated into larger, territorial ones. [[Bremerton]] Transit purchased several buses in 1940 to accommodate the increase in ridership due to the preparations for the war itself; the same year, the Seattle Municipal Railway purchased 30 buses in a single order, assisting Kenworth in breaking a production record.{{Citation needed|date=January 2021}} Producing about 40 buses yearly, Kenworth became a low-volume bus manufacturer, accommodating special-order coaches. Gray Line affiliates Seattle, Portland, and Vancouver purchased several of these special coach orders known as Grayliner or Grayliner Junior buses; the bodies for these buses were all built by Pacific Car and Foundry.
At the onset of [[World War II]], war production took precedence over bus manufacturing as Kenworth supplied recovery vehicles for the U.S. Army. Along with military variations of their commercial truck line, Kenworth buses remained in production for use as troop transports.{{citation needed|date=December 2018}} In 1945, Kenworth was sold to Pacific Car and Foundry; both companies believed bus production would play a pivotal role in jumpstarting a postwar economy. Kenworth also saw the opportunity in hiring former military truck and aircraft workers as part of launching its post-war product line.{{citation needed|date=December 2018}} For 1946, Kenworth launched four new model lines of buses, deriving their model designations from the first four letters of the company name. The Model K was a line of small intercity/interurban buses; the Model E, a [[Trolleybus|trolley coach]]; the Model N, a city transit bus; the Model W, an intercity bus.
Subsequently, Kenworth added the Model O one-door transit bus and Model T prototype school bus.<ref>[http://www.gilligcoaches.net/pages/pacific_photos.html Pacific Photos] - at Gillig Coaches {{webarchive|url=https://web.archive.org/web/20070118011308/http://www.gilligcoaches.net/pages/pacific_photos.html|date=January 18, 2007}}</ref> Ultimately, the company built trolley buses for just one city – a single order of 50 of model E2 built in 1947–48 for the Portland Traction Company, in [[Portland, Oregon]].<ref name="murray">Murray, Alan (2000). ''World Trolleybus Encyclopaedia'', p. 123. Yateley, Hampshire, UK: Trolleybooks. {{ISBN|0-904235-18-1}}.</ref><ref name="stepchild">[[Mac Sebree|Sebree, Mac]]; and Ward, Paul (1973). ''Transit's Stepchild: The Trolley Coach'', p. 217. Los Angeles: [[Interurban Press|Interurbans]]. {{LCCN|73-84356}}.</ref>
==== Model K, N, W ====
Outwardly similar in appearance, the Model K intercity/interurban and Model W intercity bus differed in function, size, and layout. The Model K was shorter, with a capacity of 25-33 passengers; the longer Model W seated 31-41 passengers. The Model K was equipped with a rear-mounted International Red Diamond RD450 while the Model W used a horizontally-mounted underfloor Hall-Scott 190 engine. The Model N, in its original configuration, was a 36-44 passenger bus; after the design found no takers, the vehicle was downsized in 1947 to a 32-36 passenger bus.
After 1947, Kenworth revised its model designations, assigning numerals to its model lines to signify evolutionary variants of each design.
==== Kenworth "Brucks" ====
As production orders for the interurban model Ks and model Ws waned, Kenworth focused its attention on special orders including an order of 10 "Brucks"<ref>[http://www.gilligcoaches.net/pages/KW_Bruck.html KW Bruck] - at Gillig Coaches {{webarchive|url=https://web.archive.org/web/20070928131817/http://www.gilligcoaches.net/pages/KW_Bruck.html|date=September 28, 2007}}</ref> for [[Great Northern Railway (U.S.)|Great Northern Railway]] in Montana, (an earlier version was built for Northern Pacific Transport, but was a split-level coach) and several Highway Post Office coaches.
These "special order coaches" were based on the Model T school bus, which entered production in early 1949. The company also test-marketed a small 20-passenger bus known as the Carcoach (only one example was built).{{citation needed|date=December 2011}}
=== 1950s ===
[[Image:Wahkiakum SD Bus 6 2007.JPG|thumb|275px|right|1955 Kenworth T-126 "Pacific School Coach"
==== Model T and CT ====
The Model T school bus, which entered production after the last bus was built for Great Northern in April 1949, was an immediate hit with many school bus operators in the Pacific Northwest. The T-126 as it was known, boasted a unique four-pane windshield that offered unheralded forward visibility in any school bus at the time, and was the first school bus ever built to feature a roof escape hatch<ref>[http://www.gilligcoaches.net/pages/pacific_trivia.html Pacific Trivia] - at Gillig Coaches {{webarchive|url=https://web.archive.org/web/20070314042139/http://www.gilligcoaches.net/pages/pacific_trivia.html|date=March 14, 2007}}</ref> (now required equipment). Production of the T-126 averaged over 375 buses per year, making it Kenworth's most lucrative bus offering in the company's history up to that time.
Shortly after its launch, Kenworth renamed the line the model CT. The model CT also came in several varying passenger capacities ranging from 55, 61, 67, 73, and 79 passengers. The model CT "Pacific School Coach" was powered by an International Red Diamond 450 inline six-cylinder gas engine placed at the rear of the bus, and a LeRoi H540 engine was made available for an LR-73 model that was produced in August 1950. Some orders for modified model CTs were made available and sold internationally, with variants being sold to [[Uruguay]] and [[Venezuela]], as well as the Middle East.{{citation needed|date=December 2018}}
==== End of production ====
After the
Following the acquisition, multiple features of the Model T/CT were integrated into the [[Gillig Transit Coach School Bus|Gillig Transit Coach]] line of school buses{{citation needed|date=December 2011}}; the model line was produced until 1982.
===Bus industry legacy===
Kenworth's role in the transit and school bus industry has largely been forgotten. This is likely due to a number of factors including Kenworth's current status as a leading manufacturer of Class 8 heavy-duty semi trucks, and the fact that hardly any examples of Kenworth-built buses exist today (with exception of a few surviving model CT-73 "Pacific School Coach" buses and one remaining "Bruck").{{fact|date=February 2023}}▼
▲Kenworth's role in the transit and school bus industry has largely been forgotten. This is likely due to a number of factors including Kenworth's current status as a leading manufacturer of Class 8 heavy-duty semi trucks, and the fact that hardly any examples of Kenworth-built buses exist today (with exception of a few surviving model CT-73 "Pacific School Coach" buses and one remaining "Bruck").
In 2006, at the
▲In 2006, at the [http://www.aths.org/ American Truck Historical Society's] 11th Annual Truck Show at the Mason County Fairgrounds in [[Shelton, WA]], a historical society dedicated to preserving the Gillig Transit Coach and Kenworth-Pacific School Coach was officially dedicated.{{citation needed|date=December 2011}}
==Reception==
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* [http://theoldmotor.com/?p=138806 The Kenworth W-1 Deck and a Half Bus]
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[[Category:Vehicle manufacturing companies established in 1912]]▼
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