Stewart & Stevenson
Encyclopedia
Stewart & Stevenson, a privately held company based in Houston, Texas
Houston, Texas
Houston is the fourth-largest city in the United States, and the largest city in the state of Texas. According to the 2010 U.S. Census, the city had a population of 2.1 million people within an area of . Houston is the seat of Harris County and the economic center of , which is the ...

, designs, manufactures and provides specialized equipment and aftermarket parts and service for the oil and gas and other industries. The company manufactures oilfield equipment that includes truck, trailer, and skid mounted fracturing blenders and pumpers and units for chemical additive, cementing, coiled tubing, nitrogen pumping, controls and power generation equipment; land-based drilling, workover and well servicing rigs; and Rail King railcar movers. Stewart & Stevenson is a distributor of diesel and natural gas engines, transmissions and materials handling equipment. Stewart & Stevenson partners with original equipment manufacturers
Original Equipment Manufacturer
An original equipment manufacturer, or OEM, manufactures products or components that are purchased by a company and retailed under that purchasing company's brand name. OEM refers to the company that originally manufactured the product. When referring to automotive parts, OEM designates a...

 such as; MTU
Tognum
Tognum AG is the name of a German industrial concern, formed when private equity fund EQT IV acquired several divisions of DaimlerChrysler. All units are to assume the corporate brand, but will otherwise operate independently....

, Detroit Diesel
Tognum
Tognum AG is the name of a German industrial concern, formed when private equity fund EQT IV acquired several divisions of DaimlerChrysler. All units are to assume the corporate brand, but will otherwise operate independently....

, Electro-Motive Diesel, Deutz
Deutz AG
Deutz AG is an engine manufacturer, based in Cologne, Germany.-History:The company was founded by Nikolaus Otto, inventor of the four-stroke internal combustion engine, in 1864 as N. A...

, Allison Transmission
Allison Transmission
Allison Transmission is an American manufacturer of commercial duty automatic transmissions and hybrid propulsion systems. Allison products are specified by over 250 of the world’s leading vehicle manufacturers and are used in many market sectors including bus, refuse, fire, construction,...

 and Hyster. They also provide aftermarket parts and service and offer rental equipment to a broad range of customers. Headquartered in Houston, Texas since 1902, Stewart & Stevenson provides equipment and service to the global market from a network of sales and service centers in domestic and international locations.

Markets Served

  • Oil & Gas
  • Power Generation
  • Material Handling
    Material handling
    -Material Handling Industry:Material Handling is the movement, storage, control and protection of materials, goods and products throughout the process of manufacturing, distribution, consumption and disposal. The focus is on the methods, mechanical equipment, systems and related controls used to...

  • On-Highway / Transportation
  • Rail
  • Marine
  • Mining
  • Construction / Industrial
  • Agriculture
  • Military / Government

Historical Timeline

1902
Stewart & Stevenson originated in Houston, TX, as a blacksmith shop shoeing horses and a carriage shop manufacturing carriages and wagons.

1905
C. Jim Stewart & Stevenson repaired their first “horseless carriage.”

1920
As the automobile became more prevalent, the company shifted its focus to automobile repair and customization.

1923
The company became a GMC truck distributor and builder of truck body variants.

1938
Stewart & Stevenson acquired a distributorship for GM diesel engines, and began harnessing diesel power for various applications, including automotive.

1940s
Stewart & Stevenson built hundreds of tow tractor/push vehicles and self-propelled bomb ordinance loaders for the U. S. Air Force.

1942
During World War II, Stewart & Stevenson built & packaged diesel generators, assembled hundreds of 6x6 trucks (2.5-ton Studebaker trucks) for military use, refurbished thousands of Jeeps, and re-powered Sherman tanks for the U. S. Army.

1946
Developed one of first 45 kW light power generators for the U. S. military.

1950
Manufactured a “swamp buggy” for support of oil exploration in Gulf Coast marsh areas.

1958
Entered the aircraft ground support business with GM Detroit Diesels. During the decade, designed and built approximately 1000 low silhouette, self-propelled GPUs with a 400 Hz, 90 kVA generator set for major airlines.

1959
Signed distributorship for Hyster industrial forklifts.

1960s
Designed, built and marketed oilfield self-propelled service units under the trade name “Fieldmaster.”

1962
Expanded the ground support equipment product line with tow tractor for various airlines.

1963
Built oilfield frac trucks.

1963 – 1966
Entered gas turbine – powered industry & pleasure craft engines.

1969
Designed and built Land Leveler vehicle used for leveling an area that was to be water flooded for rice fields.

1970
Formed the Thermo King division.

1975
JV GM Detroit Diesel Sales in Venezuela.

1980
Started building GE gas turbine power packages for offshore oil rigs.

1985
California Cogen – power producing industry.
Competed for the U.S. Army’s M939 A2 5-ton program.

1987
Through a joint venture with Mercedes Benz, built 700 “Starship” transit buses from 1987-1992.

1988
Granted exclusive territory for EMD engines, included 10 southern states, Mexico & Central America.

1989
Awarded a John Deere light industrial dealership.

1990
Designed and built Rail King railcar mover.

1991
Awarded contract to build $1.2 billion of 2.5 & 5-ton trucks for U.S. Army.

1992
Purchased Foley Valves – oil field equipment supplier.

1994
Acquired PAMCO – Waukesha gas compression & generating equipment.

1995
Signed agreement with European Gas Turbines Ltd., packager of mid-range units. Marketed large self-propelled snowblowers for use at airports and on roadways.

1996
Competed for the U.S. Marine/Army Medium Tactical Truck Replacement (MTTR) Program, August 1996.

1999
Began production in September of second multi-year contract for the next FMTV increment of 10,000 vehicles.

2000
Sold gas-turbine division to GE Power Systems.
Acquired TUG aircraft ground support vehicles business.

2001
Sold John Deere dealership. Formed the Specialty Wheeled Vehicle Division.

2002
Stewart & Stevenson celebrated 100 years in manufacturing.
Company focused on four business groupings:
• Power Products: distributor, value-added packager, and service provider of MTU, Detroit Diesel, Waukesha, Hyster, Allison, Electro-Motive, and Deutz products for numerous markets.
• Tactical Vehicle Systems: manufacture of FMTV military trucks and trailers.
• Engineered Products: consisting of Petroleum Equipment (Coiled Tubing, Fracturing and Acidizing equipment, and Remanufacturing); Distributed Energy Solutions (Backup Power Plants, Distributed Generation, Peak Shaving Plants, Wastewater Plants and Landfill Plants), and Utility Equipment (manufacture of Rail King, Snow Removal, Input/Output equipment).
• S&S TUG: manufacture of airline ground support equipment.

October 18, 2002
Stewart & Stevenson stock moved to New York Stock Exchange; shares sold under new ticker symbol “SVC.”

2002
Built all electric TUG product line.

2003
HEV transit bus package added (hybrid “clean engine”)

April 2003
Stewart & Stevenson awarded U. S. Army’s FMTV A1CR Contract for 10,000 trucks and trailers through 2008.

2004
• Exited Thermo King product offering and internal transportation business
• Disposed of wheelchair lift manufacturing and MerCruiser product offering
• Transferred Hybrid Bus Refurbishment operation from Power Products to Engineered Products
• Exited Distributed Energy Solutions business
• Sold TUG airline segment
• TVS added Mercedes-Benz G-Wagen and Automotive Technik’s Pinzgauer Light Tactical Vehicle to its product line; offers 15 vehicle variants. Obtained contracts for FMTV Low Signature Armored Cab (LSAC).
• Power Products executed new contracts with Detroit Diesel and DaimlerChrysler for distribution and servicing of diesel engine products
• Key business partners: Allison Transmission, Detroit Diesel/MTU, Deutz Corporation, Electro-Motive Division, Hyster Company, and Waukesha.

2005
Refocused on three segments: Tactical Vehicle Systems, Power Products and Engineered Products.

2006
Tactical Vehicle Systems merged with Armor Holdings, Inc.

Engineered Products and Power Products divisions sold to Hushang Ansary; becomes Stewart & Stevenson LLC. Company focus: manufacture of equipment for oil and gas market, international expansion.

2007
Stewart & Stevenson LLC acquired Crown Energy Technologies, Inc., expanding the company’s line of stimulation equipment for the oil and gas industry and adding rigs to the product line.

2011
Stewart & Stevenson LLC acquired EMDSI-Hunt Power LLC, to be merged with S&S EMD operations (primarily New Orleans branch) and expand EMD sales and service internationally, as well as use international territories gained to expand oil & gas products and services internationally.

External links



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