Real Train Database

Real-world prototypes that inspired HO scale models

Every HO scale model is based on a real-world prototype — the actual locomotive or railcar that inspired its design. Understanding the prototype helps modelers choose accurate paint schemes, match equipment to the correct era, and build realistic consists. An EMD SD40-2 in BNSF heritage paint, for instance, tells a different story than one in original Burlington Northern green.

The TrainDex prototype database covers hundreds of diesel locomotive families (EMD, GE, Alco, and others), freight car types (boxcars, covered hoppers, tank cars, gondolas, and well cars), and passenger equipment (Budd streamliners, Pullman heavyweights, Amtrak Superliners). Each entry includes builder history, production dates, technical specifications, operating railroads, and a cross-reference to every HO scale model available from tracked manufacturers.

Total Prototypes
243
Diesel Locomotives
188
Freight Cars
40
Passenger Cars
15

188 results in Diesel Locomotive

Technical Specifications

DesignationEMD GP40-2
BuilderEMD
TypeRoad Switcher
Years Built1972-1986
Total Built1143
Horsepower3000

History

The EMD GP40-2 entered production in April 1972 as part of Electro-Motive Division's revised Dash 2 series, which represented a comprehensive updating of EMD's road switcher line through improved ele…

Technical Notes

The GP40-2 is powered by the EMD 645E3, a 16-cylinder turbocharged version of EMD's 645-cubic-inch-per-cylinder two-stroke prime mover, producing 3,000 horsepo…

Model Manufacturers

Models by: Athearn · Atlas

EMD GP40-2L(W)

GP40-2L(W)

Technical Specifications

DesignationEMD GP40-2L(W)
BuilderEMD
TypeRoad Switcher (Rebuilt)
Years Built1974
Total Built~235
Horsepower3000

History

The GP40-2L(W) emerged as a Canadian variant within EMD's broader Dash 2 locomotive family, which the Electro-Motive Division introduced in the early 1970s as a significantly upgraded generation of r…

Technical Notes

The GP40-2L(W) is powered by the EMD 645E3 prime mover, a 16-cylinder turbocharged two-stroke diesel engine producing 3,000 horsepower and connected to a direc…

Model Manufacturers

Models by: Athearn

Technical Specifications

DesignationEMD GP40P-2
BuilderEMD
TypePassenger/Road Switcher
Years Built1974
Total Built3
Horsepower3000

History

The GP40P-2 was a passenger-configured variant of the EMD GP40-2 road switcher, produced in extremely limited numbers for Southern Pacific Railroad. Only three units were constructed by the Electro-M…

Technical Notes

The GP40P-2 was powered by the EMD 645E3 prime mover, a 16-cylinder turbocharged two-stroke diesel engine producing 3,000 horsepower, the same power output fou…

Model Manufacturers

Models by: Athearn

Technical Specifications

DesignationEMD GP40TC
BuilderEMD
TypePassenger/Road Switcher
Years Built1966
Total Built10
Horsepower3000

History

The GP40TC was a specialized passenger locomotive built by General Motors Diesel, the Canadian subsidiary of General Motors, specifically for GO Transit, the commuter rail service operating in and ar…

Technical Notes

The GP40TC was powered by the EMD 645E3 prime mover, a 16-cylinder two-stroke diesel engine producing 3,000 horsepower, which was the same engine family used a…

Model Manufacturers

Models by: Rapido Trains

Available as HO Models (1)

Rapido Trains
$240

Technical Specifications

DesignationEMD GP40X
BuilderEMD
TypeRoad Switcher (prototype)
Years Built1977-1978
Total Built23
Horsepower3500

History

The EMD GP40X was a small production run of pre-production diesel-electric locomotives constructed by General Motors' Electro-Motive Division between December 1977 and June 1978. A total of 23 units …

Technical Notes

The GP40X rode on a B-B wheel arrangement and was powered by a turbocharged 16-cylinder 645F3B prime mover producing 3,500 horsepower, making it a meaningful s…

Technical Specifications

DesignationEMD GP49
BuilderEMD
TypeRoad Switcher
Years Built1983-1985
Total Built41
Horsepower2800

History

The EMD GP49 was a four-axle diesel-electric road switcher produced by General Motors' Electro-Motive Division between 1983 and 1985. It was positioned within EMD's so-called 50 series, a family of l…

Technical Notes

The GP49 was powered by an EMD 12-cylinder 645F3B prime mover, which produced a gross output of approximately 2,950 horsepower, with 2,800 horsepower available…

Operating Railroads

Model Manufacturers

Models by: Athearn

Technical Specifications

DesignationEMD GP50
BuilderEMD
TypeRoad Switcher
Years Built1980-1985
Total Built278
Horsepower3500

History

The EMD GP50 entered production in 1980 as Electro-Motive Division's answer to the growing demand for higher-horsepower four-axle road switchers. The first units were delivered to the Chicago and Nor…

Technical Notes

The GP50 is powered by the 16-cylinder EMD 645F3B prime mover, producing 3,500 horsepower and driving a B-B wheel arrangement through a DC traction system. The…

Model Manufacturers

Models by: Athearn · Bachmann · Walthers

Available as HO Models (182)

+ 178 more models

Technical Specifications

DesignationEMD GP59
BuilderEMD
TypeRoad Switcher
Years Built1985-1989
Total Built36
Horsepower3000

History

The EMD GP59 was produced by General Motors Electro-Motive Division between 1985 and 1989 as a mid-range road switcher intended to offer solid performance in a package less powerful than the top-tier…

Technical Notes

The GP59 is powered by a 12-cylinder EMD 710G3A prime mover producing 3,000 horsepower, placing it in a middle tier of output among EMD's road switcher offerin…

Technical Specifications

DesignationEMD GP60
BuilderEMD
TypeRoad Switcher
Years Built1985-1994
Total Built294
Horsepower3800

History

The EMD GP60 represented a significant milestone in diesel-electric locomotive development when it entered production in 1985. Electro-Motive Division positioned the GP60 as its first third-generatio…

Technical Notes

The GP60 was powered by a 16-cylinder version of EMD's 710G3 prime mover, a turbocharged two-stroke diesel engine that formed the basis of EMD's locomotive off…

Model Manufacturers

Models by: Athearn · Fox Valley Models · Walthers

Available as HO Models (7)

$280
DCCSoundstandard
Fox Valley Models
$220
DCCpremium
$220
DCCpremium
$200
DCCSoundstandard

+ 3 more models

Technical Specifications

DesignationEMD GP60B
BuilderEMD
TypeRoad Switcher (cabless)
Years Built1991
Total Built23
Horsepower3800

History

The EMD GP60B was a cabless booster variant of the GP60 road switcher, produced exclusively for the Atchison, Topeka and Santa Fe Railway in 1991. Only 23 units were constructed, all assigned Santa F…

Technical Notes

The GP60B was powered by the EMD 16-cylinder 710G3B prime mover, producing 3,800 horsepower and driving the locomotive through a conventional DC traction syste…

Technical Specifications

DesignationEMD GP60M
BuilderEMD
TypeRoad Switcher
Years Built1990
Total Built63
Horsepower3800

History

The EMD GP60M was a specialized variant of the GP60 road switcher, built exclusively for the Atchison, Topeka and Santa Fe Railway in 1990. All 63 units, numbered 100 through 162, were delivered betw…

Technical Notes

The GP60M was powered by EMD's 16-cylinder 710G3B diesel engine, producing 3,800 horsepower and driving the locomotive through a conventional DC traction syste…

Technical Specifications

DesignationEMD GP7
BuilderEMD
TypeRoad Switcher
Years Built1949-1954
Total Built2729
Horsepower1500

History

The EMD GP7 entered production in October 1949 and represented a significant turning point in American locomotive design. It was the first road locomotive from Electro-Motive Division to employ a hoo…

Technical Notes

The GP7 was powered by the EMD 567B prime mover, a 16-cylinder two-stroke diesel engine producing 1,500 horsepower. This engine drove a direct current generato…

Model Manufacturers

Models by: Athearn · Atlas · Walthers

Available as HO Models (377)

Technical Specifications

DesignationEMD GP9
BuilderEMD
TypeRoad Switcher
Years Built1954-1963
Total Built4112
Horsepower1750

History

The EMD GP9 entered production in 1954 as the successor to the highly successful GP7, extending Electro-Motive Division's General Purpose line of road switcher locomotives. The model proved enormousl…

Technical Notes

The GP9 was powered by the EMD 567C prime mover, a sixteen-cylinder version of EMD's long-running 567 engine family, producing 1,750 horsepower. This represent…

Model Manufacturers

Models by: Athearn · Atlas · Rapido Trains · Walthers

Available as HO Models (671)

Atlas
Rapido Trains
DCCSoundpremium
Walthers
DCCSoundpremium

+ 667 more models

Technical Specifications

DesignationEMD MP15AC
BuilderEMD
TypeSwitcher
Years Built1975-1984
Total Built351
Horsepower1500

History

The EMD MP15AC was a diesel road switcher locomotive produced by General Motors' Electro-Motive Division between August 1975 and August 1984. It emerged from an evolution of the earlier MP15DC, which…

Technical Notes

The MP15AC was powered by a roots-blown, 12-cylinder version of EMD's 645E prime mover, rated at 1,500 horsepower. The 645 series engine had been introduced in…

Model Manufacturers

Models by: Athearn · Walthers

Technical Specifications

DesignationEMD MP15DC
BuilderEMD
TypeSwitcher
Years Built1974-1987
Total Built255
Horsepower1500

History

The EMD MP15DC emerged from Electro-Motive Division's effort to produce a more versatile switcher capable of road service as well as yard work. The design drew directly from an experience gained in 1…

Technical Notes

The MP15DC was powered by a twelve-cylinder version of EMD's 645E engine, a two-stroke, 45-degree V-configuration prime mover producing 1,500 horsepower at app…

Model Manufacturers

Models by: Atlas

Available as HO Models (1)

Technical Specifications

DesignationEMD MP15T
BuilderEMD
TypeSwitcher
Years Built1987
Total Built25
Horsepower1500

History

The EMD MP15T was a diesel-electric switcher locomotive produced by General Motors Electro-Motive Division, with production running from October 1984 through November 1987. The model emerged as a var…

Technical Notes

The MP15T was powered by a turbocharged 8-cylinder version of the EMD 645 engine, designated the 645E3, which distinguished it from other members of the MP15 f…

Technical Specifications

DesignationEMD NW
BuilderEMD
TypeSwitcher
Years Built1937-1939
Total Built7
Horsepower900

History

The EMD NW represented a significant transitional moment in American diesel locomotive development, being among the first switcher models to employ the newly developed EMD 567 prime mover rather than…

Technical Notes

The NW rode on a B-B wheel arrangement, with two two-axle trucks providing the tractive effort necessary for yard switching duties. Power came from the EMD 567…

Technical Specifications

DesignationEMD NW1
BuilderEMD
TypeSwitcher
Years Built1937-1939
Total Built7
Horsepower900

History

The EMD NW1 represented a transitional moment in American diesel locomotive development, appearing at a time when Electro-Motive was refining and advancing its switcher line beyond the Winton 201-A e…

Technical Notes

The NW1 was rated at 900 horsepower and rode on a B-B wheel arrangement, with four powered axles distributed across two trucks. Power was provided by an EMD 56…

Technical Specifications

DesignationEMD NW2
BuilderEMD
TypeSwitcher
Years Built1939-1949
Total Built1145
Horsepower1000

History

The EMD NW2 emerged from Electro-Motive Division's growing expertise in diesel switcher design during the late 1930s, representing a significant refinement of earlier models in the NW series. Product…

Technical Notes

The NW2 was rated at 1,000 horsepower and rode on a B-B wheel arrangement, meaning two powered two-axle trucks with all axles driven, providing a balanced and …

Model Manufacturers

Models by: Walthers

Available as HO Models (1)

Walthers

Technical Specifications

DesignationEMD NW3
BuilderEMD
TypeSwitcher
Years Built1939-1942
Total Built7
Horsepower1000

History

The EMD NW3 was a specialized diesel-electric switcher produced by General Motors' Electro-Motive Division at its La Grange, Illinois facility between November 1939 and March 1942. Only seven example…

Technical Notes

The NW3 was built around a mechanical foundation similar to the EMD NW2 switcher, using the same hood assembly and prime mover arrangement, but mounted on a su…

Technical Specifications

DesignationEMD NW5
BuilderEMD
TypeSwitcher
Years Built1946-1947
Total Built13
Horsepower1000

History

The EMD NW5 was a road switcher diesel-electric locomotive produced by General Motors' Electro-Motive Division at its La Grange, Illinois facility between December 1946 and February 1947. Only thirte…

Technical Notes

The NW5 was rated at 1,000 horsepower and powered by the EMD 567B, a V-12 configuration of EMD's well-established 567 prime mover series. The locomotive rode o…

Technical Specifications

DesignationEMD SC
BuilderEMD
TypeSwitcher
Years Built1936
Total Built2
Horsepower600

History

The EMD SC was one of four model designations within Electro-Motive Corporation's early Winton-engined switcher line, which collectively represented a pivotal step in the dieselization of American ra…

Technical Notes

The SC was powered by the Winton 201-A engine in a straight-eight configuration producing 600 horsepower, which drove the locomotive through a DC electrical tr…

Technical Specifications

DesignationEMD SD18
BuilderEMD
TypeRoad Switcher
Years Built1960-1963
Total Built54
Horsepower1800

History

The EMD SD18 was produced by General Motors' Electro-Motive Division between April 1960 and March 1963, representing one of the lower-powered entries in EMD's SD, or Special Duty, line of six-axle ro…

Technical Notes

The SD18 was powered by the EMD 567D1 prime mover, a 16-cylinder version of the long-running 567 engine family, producing 1,800 horsepower. This output was tra…

Technical Specifications

DesignationEMD SD24
BuilderEMD
TypeRoad Switcher
Years Built1958-1963
Total Built224
Horsepower2400

History

The EMD SD24 was introduced in July 1958 as the product of Electro-Motive Division's effort to bring turbocharged power to its six-axle road switcher line. Built at EMD's La Grange, Illinois facility…

Technical Notes

The SD24 rode on a C-C wheel arrangement, meaning six powered axles across two three-axle trucks, and drew its 2,400 horsepower from an EMD 567D3 prime mover e…

Model Manufacturers

Models by: Atlas

Available as HO Models (1)