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MTH Electric Trains O MTH Conrail #6792 SD50 Diesel Engine/3.0 20-21902-1 $583.56
$599.95 -
MTH Electric Trains O MTH Conrail #6804 Sd50 Diesel Engine/3.0 20-21903-1 $583.56
$599.95 -
MTH Electric Trains O MTH Erie Alco PA B Unit (Non-Powered) 30-20038-3 $116.69
$119.95 -
MTH Electric Trains O MTH Halloween Galloping Goose Diesel with Proto-Sound 3.0 30-21320-1 $356.24
$384.95 -
MTH Electric Trains O MTH Louisville & Nashville #955 RS-11 Diesel Engine/3.0 20-21631-1 $544.69
$559.95 -
MTH Electric Trains O MTH Louisville & Nashville #958 RS-11 Diesel Engine/3.0 20-21632-1 $544.69
$559.95 -
MTH Electric Trains O MTH New York Central 4-6-4 J-1E Hudson Steam Engine/3.0 20-3864-1 $1,468.62
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MTH Electric Trains O MTH Northern Pacific SW-9 Switcher Diesel Engine w/Proto-Sound 3.0 30-20909-1 $359.88
$369.95 -
MTH Electric Trains O MTH Pennsylvania Power & Light SW1500 Diesel Switcher w/Proto-Sound 3.0 30-20829-1 $340.42
$349.95 -
MTH Electric Trains O MTH Reading & Northern MP15DC Diesel Engine w/Proto-Sound 3.0 30-21006-1 $369.60
$379.95 -
MTH Electric Trains O MTH Santa Fe FM Erie Built AB Diesel/3.0 20-21854-1 $1,099.97
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MTH Electric Trains O MTH Southern Pacific AS-616 Diesel Engine with Proto-Sound 3.0 30-20885-1 $359.88
$369.95 -
MTH Electric Trains O MTH Transylvania Bump-N-Go Trolley with Led Lights 30-5243 $91.68
$109.95 -
MTH Electric Trains O MTH Transylvania Traction Co. Bump-N-Go Trolley with Led Lights 30-5253 $98.10
$109.95 -
MTH Electric Trains O MTH U.S. Army 4-6-2 USRA Heavy Pacific Steam Engine/3.0 20-3812-1 $1,363.72
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MTH Electric Trains O MTH Union Pacific Alco PA B Unit (Non-Powered) 30-21075-3 $165.33
$169.95 -
MTH Electric Trains O MTH Western New York & Pennsylvania #6005 AC6000 Diesel Engine/3.0 20-21884-1 $583.60
$599.95 -
Williams O Williams Amtrak California #2001 - F59PHI 23402 $364.65
$539.95 -
Williams O Williams Amtrak Cascades Pacific #470 - F59PHI 23403 $364.65
$539.95 -
Williams O Williams NW-2 Scale Diesel w/ Sound - Boston & Maine #1206 - 21650 $162.34
$459.95 -
Williams O Williams NW-2 Scale Diesel w/ Sound - Western Pacific #608 - 21653 $162.34
$459.95
Building Your O Scale Locomotive Roster
Assembling an authentic O Scale locomotive fleet requires attention to prototype accuracy, operational era, and regional railroad characteristics. This collection represents diverse motive power from the diesel transition era through modern operations, with each model engineered to MTH's Premier standards for scale fidelity and operational reliability.
The diesel locomotive selection spans multiple wheel arrangements and builder types, from the high-horsepower AC6000 to versatile road switchers like the RS-11 series. Steam locomotive offerings include USRA standardized designs and railroad-specific classes such as the New York Central Hudson, each featuring accurate valve gear, piping, and appliance placement. Proto-Sound 3.0 equipped models deliver synchronized chuff rates, authentic horn and whistle recordings, and command control compatibility across DCS and DCC systems.
Modelers building transition-era layouts will appreciate the variety of first-generation diesel designs, while those focused on modern operations can select from contemporary paint schemes and road numbers. Each locomotive pairs seamlessly with O Scale track systems and benefits from the extensive O Scale accessory ecosystem. For additional locomotive options across different scales, explore our HO locomotive and N Scale locomotive collections.
MTH Electric Trains continues to set the standard for O Scale locomotive production, combining die-cast construction with digital sound and control technology. Learn more about the complete MTH product line and technical specifications at MTH Electric Trains, where you can access operator manuals, sound file updates, and prototype research resources that enhance your modeling experience.