Editing Detroit Diesel

{{Short description|American diesel engine manufacturer}}
{{About||the Canadian EBM band|Detroit Diesel (band)|the 1986 album and single|Alvin Lee#Discography}}
{{Infobox company
| name = Detroit Diesel Corporation
| logo = Detroit Diesel logo.svg
| type = [[Subsidiary]]
| predecessor = [[General Motors]] Detroit Diesel-Allison Division
| foundation = {{Start date and age|1938}}
| location_city = [[Detroit, Michigan]]
| location_country = United States
| key_people = 
| num_employees = 2,300
| industry = [[Automotive industry|Automotive]]
| products = Heavy-duty [[diesel engines]]
| production = 
| revenue = 
| owner = [[Daimler Truck|Daimler Truck AG]] (as of 2000)
| parent = [[Daimler Truck North America]]
| divisions = 
| subsid = 
| homepage = {{url|http://www.demanddetroit.com/}}
}}

'''Detroit Diesel Corporation''' ('''DDC''') is an American [[diesel engine]] manufacturer headquartered in [[Detroit, Michigan]]. It is a subsidiary of [[Daimler Truck North America]], which is itself a wholly owned subsidiary of the multinational [[Daimler Truck|Daimler Truck AG]]. The company manufactures heavy-duty engines and chassis components for the on-highway and vocational commercial truck markets. Detroit Diesel has built more than 5 million engines since 1938,<ref>[http://www.westernbranchdiesel.com/brands/detroit-diesel-engines/ Detroit Diesel Engines] {{Webarchive|url=https://web.archive.org/web/20170918202027/http://www.westernbranchdiesel.com/brands/detroit-diesel-engines/ |date=2017-09-18 }} Retrieved 9/8/2017</ref> more than 1 million of which are still in operation worldwide. Detroit Diesel's product line includes engines, axles, transmissions, and a Virtual Technician service.

Detroit engines, transmissions, and axles are used in several models of truck manufactured by Daimler Truck North America.

==Divisions==
Detroit Diesel consists of manufacturing operations of axles, transmissions and diesel engines for on-highway only, which is owned by [[Daimler Truck|Daimler Truck AG]]. The former off-highway division was sold to [[MTU Friedrichshafen]] in 2006 and subsequently purchased by [[Rolls-Royce Holdings|Rolls-Royce]] in 2014.

==Detroit Diesel Corporation timeline==
The ancestor of Detroit Diesel was the Winton Engine Company, founded by [[Alexander Winton]] in 1912; Winton Engine began producing diesel engines in fall 1913. After [[Charles F. Kettering]] purchased two Winton diesels for his yacht, General Motors acquired the company in 1930 along with [[Electro-Motive Diesel|Electro Motive Company]], Winton's primary client.<ref name=Speer89>{{cite magazine |url=https://books.google.com/books?id=pV8D1unClCoC&pg=RA5-PA30 |title=Engines: Reworking a workhorse |first=David |last=Speer |date=June 1989 |magazine=Boating |pages=30 |volume=62 |number=6 |publisher=Diamandis Communications Inc. |issn=0006-5374 |access-date=18 June 2024}}</ref>{{rp|30}} Research initiated by Kettering led to the development and release of the [[EMD 567]] locomotive engine in the late 1930s; a smaller engine using a similar two-stroke design was developed by engineers at GM Research, which led to the first [[Detroit Diesel Series 71|6-71]], manufactured in 1938.<ref name=Speer89/>{{rp|32}}

===Origins===
* January 1938: [[General Motors]] began diesel engine manufacturing in Detroit under the Detroit Diesel Engine Division, and re-organized its Winton Engine Corporation as the [[Cleveland Diesel Engine Division]]. Cleveland Diesel produced larger diesel engines for locomotive, marine, and stationary use.  Detroit Diesel started production with the smaller mobile [[Series 71]] two-cycle engines that the GM Research Division had recently developed. GM formed the [[General Motors Diesel Division]] (GMDD) as a marketing and customer service structure for its Detroit and Cleveland diesel products.  
* 1939: Series 71 engines installed in buses manufactured by [[Yellow Coach Manufacturing Company|Yellow Coach]] (acquired by GM in 1943).
* [[World War II]]: Tanks, landing craft, road building equipment and standby generators needed compact, lightweight, two-cycle engines. By 1943, Detroit Diesel employed 4,300 people, more than 1,400 of them women. Together, these employees produced 57,892 engines in 1943. Detroit Diesel launches [[Detroit Diesel 110|Series 110]] engines used in construction equipment, rail cars, and power generation.
* 1945: Detroit Diesel Engine Division begins marketing the Series 71 for marine applications, taking over from the [[Gray Marine Motor Company]], which had been assembling marinized versions since 1938.<ref>{{cite magazine |url=https://books.google.com/books?id=2rh4MFlY4UUC&pg=PA119 |title=A tribute and an announcement [advertisement] |date=January 1945 |magazine=Motor Boating |access-date=12 June 2024}}</ref><ref>{{cite magazine |url=https://books.google.com/books?id=T0Nj9lCIm7sC&pg=PA114 |title=Detroit Diesel takes over distribution |date=February 1945 |magazine=Motor Boating |access-date=12 June 2024}}</ref>

===Postwar expansion===
* 1950s: Wide use of GM's Detroit Diesel engines in military applications aided their acceptance in commercial applications. Detroit Diesel developed heavy-duty engines for long-distance trucks. GMDD began to develop a worldwide distribution network of independent, authorized distributors and dealers to provide parts and service for Detroit and Cleveland Diesel products. 
* 1957: Detroit Diesel introduced the [[Detroit Diesel Series 53|Series 53]] engine, and put the [[Series 71]] engine into use for both on-highway and off-road use. All engines within a Series were designed so that a vast majority of parts were interchangeable, facilitating production of many models of various horsepower by adding cylinders.
* 1960 and after: For the next 20 years, the Detroit Diesel and Allison Divisions grew, tripling sales during the 1960s alone. In 1963, Detroit Diesel marked a milestone after the collective horsepower produced by its engines to-date had reached 100&nbsp;million; by 1967, DD had produced engines producing a collective 150&nbsp;million horsepower.<ref>{{cite magazine |url=https://books.google.com/books?id=xLhsB41M-z0C&pg=PA112 |title='Jimmy' marks a milestone |date=February 1967 |magazine=Motor Boating |page=112 |access-date=12 June 2024}}</ref>
* 1962: Production and marketing of remaining Cleveland Diesel products moved to GM's [[Electro-Motive Division]], leaving Detroit Diesel Engine Division the remaining partner of GMDD.
* 1965: GMDD structures absorbed into the Detroit Diesel Engine Division, formally ending GMDD as a separate entity. Detroit Diesel introduces the [[Series 149]] engine for use in workboats, push boats, and 100 ton-plus mining trucks.
* 1970: General Motors consolidated Detroit Diesel with the closely allied transmission and [[GM Whirlfire engine|Whirlfire]]-branded [[gas turbine]] businesses of the [[Allison Transmission|Allison Division]], forming the Detroit Diesel-Allison Division.<ref name=Harmon>{{cite conference |doi=10.4271/982791 |author1=Harmon, K. B. |date=1998 |title=The History of Allison Automatic Transmissions For On-Highway Trucks and Buses |conference=International Truck & Bus Meeting & Exposition |issn=0148-7191 |jstor=44668196}}</ref>
* 1974: [[Detroit Diesel Series 92|The Series 92]] engine was introduced, called the Fuel Squeezers; the 6V-92TT engine achieved fuel savings of 10% to 20% over previous models of comparable horsepower. During the energy crisis, turbine engines became uncompetitive.

===Shift to four-cycle engines and spinoff===
* 1980: Detroit Diesel-Allison produced its first four-cycle engine. A few years later in the early 1980s diesel engine production split off as Detroit Diesel Division while turbine engines remained as Allison Division.
* 1987: [[Detroit Diesel 60|The Series 60]] — the four-cycle heavy-duty engine for which the company is well known — was introduced. It was the first production engine to have integrated electronic controls as a standard feature. The Series 60 was cleaner and more fuel-efficient than previous heavy-duty engines, and became the biggest selling heavy-duty diesel engine in the North American Class 8 truck market.
* 1988 January 1: A joint venture between [[Penske Corporation]] and General Motors created Detroit Diesel Corporation. Penske had a 60% majority ownership in the new venture and the CEO was former racecar driver [[Roger Penske]].<ref>{{cite news|last=Levin|first=Doron|url=https://www.nytimes.com/1989/05/25/business/penske-wins-big-at-detroit-diesel.html|title=Penske Wins Big at Detroit Diesel|newspaper=[[The New York Times]]|date=May 25, 1989|access-date=October 3, 2013}}</ref><ref>{{cite web|url=http://www.motortrend.com/features/112_0508_roger_penske/viewall.html|title=People: Roger Penske...This Guy Should Run GM|work=[[Motor Trend]]|access-date=October 3, 2013|archive-date=October 5, 2013|archive-url=https://web.archive.org/web/20131005033634/http://www.motortrend.com/features/112_0508_roger_penske/viewall.html|url-status=dead}}</ref><ref>{{cite magazine |url=https://books.google.com/books?id=NInY5GUWdX0C&pg=RA3-PA55 |title=The Penske Philosophy |date=July–August 1988 |magazine=Boating |pages=55–62 |access-date=12 June 2024}}</ref>
* 1993 October: Detroit Diesel Corporation had grown its on-highway heavy-duty market share to 33% from 3% only a few years earlier. The company also made an [[initial public offering]] of common stock, becoming a publicly traded company listed on the [[New York Stock Exchange]] under the stock symbol "DDC". That same year, Detroit Diesel launched the Series 50, the first Detroit Diesel natural gas engine.
* 1999: Detroit Diesel built its 4 millionth engine.

===DaimlerChrysler===
* 2000: In October 2000, [[DaimlerChrysler]] bought Detroit Diesel Corporation.<ref>{{cite web|url=http://www.theautochannel.com/news/2000/07/20/005040.html|title=Penske Corporation Announces Sale of Its Detroit Diesel Stake to DaimlerChrysler|work=The Auto Channel|date=July 20, 2000|access-date=October 3, 2013}}</ref><ref>{{cite magazine |title=DC swallows Detroit and Western Star |magazine=[[Truck & Bus Transportation]] |date=September 2000 |page=10}}</ref>
* 2000: Off-highway engines combined with MTU Friedrichshafen to form MTU America.<ref>{{cite web |url=http://www.mtu-online.com/mtu-northamerica/mtu/mtu-in-north-america/ |title=MTU in North America: MTU Online |access-date=2015-02-16 |url-status=dead |archive-url=https://web.archive.org/web/20150202072230/http://www.mtu-online.com/mtu-northamerica/mtu/mtu-in-north-america |archive-date=2015-02-02 }}</ref> The on-highway division of Detroit Diesel was retained by DaimlerChrysler (now Daimler AG) as part of Daimler Trucks North America (DTNA).
* 2005: Detroit Diesel Corporation invested $350 million to refurbish and retool its plant for future business.
* 2006: MTU Friedrichshafen, including the off-highway part of Detroit Diesel in the US, was acquired by the [[EQT AB]] investment group. A new company, Tognum GmbH, was formed as a holding company for the brands held by Daimler Trucks and MTU Friedrichshafen.   Both companies use the 'Detroit Diesel' name and corporate logo.
* 2007: Detroit Diesel Corporation launches its DD engine platform with the DD15 Engine.
* 2008: Detroit Diesel Corporation was recognized for its Brownfield Redevelopment efforts, and also won the national EPA Phoenix Award for its plant.
* 2009: The 1 millionth Series 60 engine was sold.
* 2010: An additional $190 million investment allowed Detroit Diesel Corporation to launch Blue Tec emissions technology and the final engine of its new engines family: the Detroit DD platform of engines that includes the DD13, DD15, DD15TC, and DD16 engines.
* 2010: Detroit began production of EPA 2010 certified engines.
* 2011: Detroit Diesel Corporation is named one of the two 2011 Michigan Green Leaders in the Big Business category by the Detroit Free Press.  DDC changes brand name from Detroit Diesel to Detroit.
* 2012: 100,000th DD platform engine built. DD axles, Virtual Technician, DT12 automated manual transmission and Detroit Genuine Parts are introduced.
* 2013: 75th anniversary.
* 2016: Detroit Diesel agreed to pay U.S.$28.5 million to resolve violations of US federal Clean Air Act. The company sold 7,786 heavy-duty diesel engines, which were assembled approximately 80% complete in 2009, including the crankshaft, block, pistons, and connecting rods. These short block engines were stored temporarily, and the remaining assembly work was completed in early 2010 for use in trucks and buses of in model year 2010.<ref name="Settlement">{{cite news |last1=Matheny |first1=Keith |title=Detroit Diesel to pay $28.5M over Clean Air Act violations |url=https://www.freep.com/story/money/business/michigan/2016/10/06/detroit-diesel-pay-285m-over-clean-air-act-violations/91669542/ |access-date=25 September 2019 |work=Detroit Free Press |date=6 Oct 2016 |language=en}}</ref> These engines were alleged not to comply with stricter 2010 emission standards.<ref name="Settlement"/> The company believed its practice was allowed under EPA regulations.<ref name="Settlement"/>

==Products==
{{Time-context|section|date=June 2018}}
[[File:GMC Savana Florida Detroit Diesel-Allison Wagon.jpg|thumb|right|A [[GMC Savana]] with the company's logo.]]

===Current products===
*DD5: A {{convert|5.1|L|cuin|0|abbr=on}} I4 developing {{convert|210|-|240|hp|kW|0|abbr=on}} and {{convert|575|-|660|lbfft|0|abbr=on}}.
*DD8: A {{convert|7.7|L|cuin|0|abbr=on}} I6 developing {{convert|260|-|350|hp|kW|0|abbr=on}} and {{convert|660|-|1050|lbfft|0|abbr=on}}.
*DD13: A {{convert|12.8|L|cuin|0|abbr=on}} I6 developing {{convert|350|-|505|hp|kW|0|abbr=on}} and {{convert|1250|-|1850|lbfft|0|abbr=on}}.
*DD15: A {{convert|14.8|L|cuin|0|abbr=on}} I6 developing {{convert|455|-|505|hp|kW|0|abbr=on}} and {{convert|1550|-|1750|lbfft|0|abbr=on}}.
*DD16: A {{convert|15.6|L|cuin|0|abbr=on}} I6 developing {{convert|475|-|600|hp|kW|0|abbr=on}} and {{convert|1850|-|2050|lbfft|0|abbr=on}}.
*Front Steer Axles: Ratings up to {{convert|20000|lb|abbr=on}}
*Single Rear Axles: Ratings up to {{convert|23000|lb|abbr=on}}
*Tandem Rear Axles: Ratings up to {{convert|46000|lb|abbr=on}}
*DT12 Transmissions: An HD 12 speed automatic

===Services===
* Detroit Reman
* Virtual Technician

===Engines still supported===
* [[Detroit Diesel Series 50|Series 50]]: A {{convert|8.5|L|cuin|0|abbr=on}} I4 developing {{convert|250|-|350|hp|kW|0|abbr=on}} and {{convert|1250|-|1650|lbfft|0|abbr=on}}.
* [[Detroit Diesel Series 60|Series 60]]: A {{convert|11.1|L|cuin|0|abbr=on}}, {{convert|12.7|L|cuin|0|abbr=on}}, or {{convert|14|L|cuin|0|abbr=on}} I6 developing {{convert|400|-|665|hp|kW|0|abbr=on}}.
* Mercedes-Benz Engine (MBE) 900: A {{convert|7.2|L|cuin|0|abbr=on}} I6 developing {{convert|350|hp|kW|0|abbr=on}} and {{convert|860|lbfft|0|abbr=on}}.
* Mercedes-Benz Engine (MBE) 4000: A {{convert|12.8|L|cuin|0|abbr=on}}, I6 developing {{convert|350|-|450|hp|kW|0|abbr=on}} and {{convert|1350|-|1550|lbfft|0|abbr=on}}.
* DD15TC

===Related engine series===
* Series 40E (rebranded [[Navistar DT engine|International DT/Maxxforce]] engines)
* Series 51
* [[Detroit Diesel Series 53|Series 53]]
* Series 55
* [[Detroit Diesel Series 71|Series 71]]
* [[Detroit Diesel Series 92|Series 92]]
* [[Detroit Diesel 110|Series 110]]
* [[Detroit Diesel Series 149|Series 149]]
* Series 638 (rebranded VM Motori 638)
* Series 700
* Series 2000
* Series 4000
* Series SUN
* 8.2 Liter "Fuel Pincher"
* [[Detroit Diesel V8 engine|6.2 Liter]]
* [[Detroit Diesel V8 engine|6.5 Liter]]

To know the series model one can find out by checking the layout of the overall engine.<ref>{{cite web |title=Detroit Diesel Engine - Which Series Do I Have? |url=https://swiftequipment.com/series-detroit-diesel-engine/ |website=Swift Equipment Solutions |date=26 April 2018 |access-date=11 October 2020}}</ref>

===Engine model number===

{|class=wikitable style="text-align:center;"
|+ style="font-size:125%;" | Detroit Diesel engine model description chart
|- style="font-size:250%;"
! width=10% | 8
! width=20% | 08
! width=10% | 3
! width=10% | -
! width=10% | 7
! width=10% | 0
! width=20% | 00
|-
| Model designator
| Number of cylinders
| Application designation
| rowspan=11 |&nbsp;
| Basic engine arrangement and drive shaft rotation or Displacement{{efn|name=S60|Series 60 only}}
| Design variation or Engine Control{{efn|name=S60}}
| Specific model number or customer configuration
|- style="text-align:left;font-size:85%;"
| 1 = Series 71, inline arrangement<ref>{{cite web |url=https://www.powerlinecomponents.com/literature/detroit_diesel/il71_model_chart.htm |title=Series Inline 71 Model Description Chart |publisher=Powerline Components Industries |access-date=16 July 2018}}</ref>
| rowspan=10 |&nbsp;
| 2 = Marine
| 1 = LA (left hand rotation,{{efn|name=Rotation}} exhaust & balance shaft to the left,{{efn|name=i71|Inline Series 71 & Series 53}} or starter on left bank{{efn|name=vees|Vee Series 53, Series 71, and Series 92 engines}})
| 0 = 4 valve head "N" engine
| rowspan=10 |&nbsp;
|- style="text-align:left;font-size:85%;"
| 5 = Series 53, inline or vee arrangement<ref>{{cite web |url=https://www.powerlinecomponents.com/literature/detroit_diesel/il53_model_chart.htm |title=Series Inline 53 Model Description Chart |publisher=Powerline Components Industries |access-date=16 July 2018}}</ref><ref>{{cite web |url=https://www.powerlinecomponents.com/literature/detroit_diesel/v53_model_chart.htm |title=Series V 53 Model Description Chart |publisher=Powerline Components Industries |access-date=16 July 2018}}</ref>
| 3 = Industrial F-F{{efn|name=F-F|"Fan to Flywheel"}}
| 2 = LB (left hand rotation,{{efn|name=Rotation|As viewed from the front of the engine}} exhaust & balance shaft to the right,{{efn|name=i71}} starter on right bank{{efn|name=vees}})
| 1 = 2 valve head
|- style="text-align:left;font-size:85%;"
| 6 = Series 60<ref>{{cite web |url=https://www.powerlinecomponents.com/literature/detroit_diesel/s60_model_chart.htm |title=Series 60 Model Description Chart |publisher=Powerline Components Industries |access-date=16 July 2018}}</ref>
| 4 = Power Base
| 3 = LC (left hand rotation,{{efn|name=Rotation|As viewed from the front of the engine}} exhaust & balance shaft to the left,{{efn|name=i71}} starter on right bank{{efn|name=vees}})
| 2 = 4 valve head "E" engine
|- style="text-align:left;font-size:85%;"
| 7 = Series 71, vee arrangement<ref>{{cite web |url=https://www.powerlinecomponents.com/literature/detroit_diesel/v71_model_chart.htm |title=Series V 71 Model Description Chart |publisher=Powerline Components Industries |access-date=16 July 2018}}</ref>
| 5 = Generator
| 4 = LD (left hand rotation,{{efn|name=Rotation}} exhaust & balance shaft to the right,{{efn|name=i71}} starter on left bank{{efn|name=vees}})
| 3 = Turbocharged
|- style="text-align:left;font-size:85%;"
| 8 = Series 92, vee arrangement<ref>{{cite web |url=https://www.powerlinecomponents.com/literature/detroit_diesel/v92_model_chart.htm |title=Series V 92 Model Description Chart |publisher=Powerline Components Industries |access-date=16 July 2018}}</ref>
| 7 = Vehicle F-F{{efn|name=F-F}}
| 5 = RA (right hand rotation,{{efn|name=Rotation}} exhaust & balance shaft to the left,{{efn|name=i71}} starter on right bank{{efn|name=vees}})
| 4 = Aftercooled
|- style="text-align:left;font-size:85%;"
| 9 = Series 149<ref>{{cite web |url=https://www.powerlinecomponents.com/literature/detroit_diesel/149_model_chart.htm |title=Series 149 Model Description Chart |publisher=Powerline Components Industries |access-date=16 July 2018}}</ref>
| 8 = Vehicle F-F{{efn|name=F-F}}
| 6 = RB (right hand rotation,{{efn|name=Rotation}} exhaust & balance shaft to the right,{{efn|name=i71}} starter on right bank{{efn|name=vees}})
| 5 = Customer special engine
|- style="text-align:left;font-size:85%;"
| T = Series 4000<ref>{{cite web |url=https://www.powerlinecomponents.com/literature/detroit_diesel/4000_model_chart.htm |title=Series 4000 Model Description Chart |publisher=Powerline Components Industries |access-date=16 July 2018}}</ref>
| rowspan=4 |&nbsp;
| 7 = RC (right hand rotation,{{efn|name=Rotation}} exhaust & balance shaft to the left,{{efn|name=i71}} starter on right bank{{efn|name=vees}})
| 6 = Constant horsepower, economy (TAE, California Certified)
|- style="text-align:left;font-size:85%;"
| rowspan=3 |&nbsp;
| 8 = RD (right hand rotation,{{efn|name=Rotation}} exhaust & balance shaft to the right,{{efn|name=i71}} starter on left bank{{efn|name=vees}})
| 7 = Constant horsepower (TT)
|- style="text-align:left;font-size:85%;"
| rowspan=2 |&nbsp;
| 8 = Constant horsepower (TTA, California & Federal Certified)
|- style="text-align:left;font-size:85%;"
| 9 = Constant horsepower, economy (TTAE, California & Federal Certified)
|}

;Notes
{{Notelist|25em}}

==Joint ventures==
* 50/50 Joint Venture with Bosch LLC- Detroit North America Fuel Systems Remanufacturing

==Partners==
* [[Daimler Truck North America]], Detroit Diesel Corporation's parent company, and Walmart collaborated to build the first-ever hybrid electric Freightliner Cascadia in 2010.{{Citation needed|reason=reliable source needed for the whole sentence|date=January 2014}}

==Clean Air Act violations==
In 1998, the EPA announced fines totaling $83.4 million against Detroit Diesel and six other  [[diesel engine]] manufacturers, the largest fine to date, which evaded testing by shutting down emissions controls during highway driving while appearing to comply with lab testing.<ref name=EPA1998>{{Citation |url=http://www2.epa.gov/enforcement/mack-trucks-diesel-engine-settlement |title=Mack Trucks Diesel Engine Settlement |date=October 22, 1998 |author=United States Environmental Protection Agency |author-link=United States Environmental Protection Agency |access-date=October 10, 2019 |archive-date=October 2, 2015 |archive-url=https://web.archive.org/web/20151002043823/http://www2.epa.gov/enforcement/mack-trucks-diesel-engine-settlement |url-status=dead }}</ref> The manufacturers also agreed to spend more than $1 billion to correct the problem.<ref name=Plungis2015/> The trucks used engine ECU software to engage pollution controls during the 20-minute lab tests to verify compliance with the Clean Air Act, but then disable the emissions controls during normal highway cruising, emitting up to three times the maximum allowed NOx pollution.<ref name=Plungis2015>{{Citation |date= September 27, 2015 |title=Carmakers cheating on emissions almost as old as pollution tests |url= http://www.dailyherald.com/article/20150927/business/150929346/ |newspaper=[[Daily Herald (Arlington Heights)|Daily Herald]] |first1=  Jeff |last1= Plungis |author2=Bloomberg News |author2-link=Bloomberg News }}</ref>

In 2016, Detroit Diesel agreed to pay U.S.$28.5 million to resolve violations of the U.S. federal Clean Air Act. The company sold 7,786 heavy-duty diesel engines, which were assembled approximately 80% complete in 2009, including the crankshaft, block, pistons, and connecting rods, the short block engines were stored temporarily and completed the remaining assembly in early 2010 for use in trucks and buses of in model year 2010.<ref name="Settlement"/> These engines were alleged not to comply with stricter 2010 emission standards.<ref name="Settlement"/>

==See also==
*[[Stewart & Stevenson]]
{{Portal|United States|Companies}}
{{Clear}}

==References==
{{Reflist}}

==External links==
{{Commons category|Detroit Diesel}}
*[http://www.demanddetroit.com/ Detroit Diesel Corporation official website]

{{Daimler Truck}}
{{Automotive industry in the United States}}
{{Trucking industry in the United States}}
{{General Motors}}
{{Authority control}}

[[Category:Daimler Truck]]
[[Category:American subsidiaries of foreign companies]]
[[Category:Engine manufacturers of the United States]]
[[Category:Auto parts suppliers of the United States]]
[[Category:Diesel engine manufacturers]]
[[Category:Electrical generation engine manufacturers]]
[[Category:Marine engine manufacturers]]
[[Category:Motor vehicle engine manufacturers]]
[[Category:Manufacturing companies based in Detroit]]
[[Category:Manufacturing companies established in 1938]]
[[Category:1938 establishments in Michigan]]
[[Category:Former General Motors subsidiaries]]