A locomotive (from Latin loco motivus) is a railway vehicle that provides the motive power for a train, and has no payload capacity of its own; its sole purpose is to move the train along the tracks. In contrast, many trains feature self-propelled payload-carrying vehicles; these are not normally considered locomotives, and may be referred to as multiple units or railcars; the use of these self-propelled vehicles is increasingly common for passenger trains, but very rare for freight (see however CargoSprinter). Vehicles which provide the motive power to haul an unpowered train, but are not generally considered locomotives because they have payload space or are rarely detached from their trains, are known as power cars.
Traditionally, locomotives haul (pull) their trains. Increasingly common these days in local passenger service is push-pull operation, where a locomotive pulls the train in one direction and pushes it in the other, and is therefore optionally controlled from a control cab at the opposite end of the train. This is especially true of "High Speed Rail lines", such as the Japan’s Shinkansen and France’s TGV trains.

DLM AG - Develop and produce modern steam locomotives. Information on products and services.
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Electro-Motive Diesel - Builder of diesel-electric locomotives for all commercial railroad applications including intercity passenger, commuter, freight, switching, industrial, and mining.
Interlok Poland - Steam locomotive repair and sale of used locomotives and rolling stock. Some of the site is in English, the majority in German.
Medha Servo Drives Pvt. Ltd - Development and manufacture of locomotive equipment in Hyderabad India.
Rail Equipment Solutions - Supplier of new, rebuilt and used EMD, G.E., and ALCO locomotives as well as spare component parts.
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Schalker Eisenhütte Maschinenfabrik GmbH, Gelsenkirchen (Germany) - Design and construction of rail vehicles for local traffic, tunnelling and mining.
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Wir sind das innovative Unternehmen mit Systemlösungen für Koksofenbedienungsmaschinen Schienenfahrzeuge Emissionsschutz Automation ]
Taylor Rail Group, Inc. - Supplier of used rail switching and industrial switching locomotives and locomotive parts.
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UK Loco - Manufacturer of recreational rail trains and trams.
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VMV Paducahbilt - Locomotive locomotive component remanufacture facility. Direct service with BNSF, CN/IC, CSXT, UPRR and NS.
Meta Description: [ VMV Paducahbilt is a full service locomotive remanufacture facility. We rebuild locomotives from all over the world. We also offer 20 cylinder prime mover engines, high voltage cabinets, and cores for sale. ]
Vossloh Locomotives GmbH - Construction and repowering of diesel locomotives.
WABCO Corporation - Supplier of locomotives and related products.
Meta Description: [ Wabtec supplies value-added, technology-based products and services for rail, transit and industry - including components and aftermarket services for locomotives, freight cars and passenger transit. ]
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