Available Items


O Gauge RailKing ES44AC Imperial Diesel & Caboose Set With Proto-Sound 3.0
  • BNSF


O Gauge RailKing 8-Car 50’ Double Door Plugged Boxcar Set
  • BNSF

Uncataloged RailKing O Gauge BNSF 25th Anniversary Diesels Sets Announced

February 16, 2021 - M.T.H. Electric Trains has announced an uncataloged RailKing O Gauge ES44 Diesel Locomotive/Caboose Set in special BNSF 28th Anniversary livery slated for delivery during the Spring of 2021. In addition to the locomotive and caboose, a separately sold 8-car 50' Double-Door Boxcar Set will be produced with each car sporting one of the heritage railroads that make up the BNSF as part of the railroad's 25th Anniversary celebration.

Each of these sets and separately sold boxcar set can be ordered from your local M.T.H. Authorized Retailer or by calling the M.T.H. Sales Department at 410-381-2580.

Click on any of the item numbers to the left to learn more.


With a wave of consolidation behind it, North American railroading is once again a good business to be in. Freight traffic is booming. Locomotive orders are coming in at a record pace from the Big Seven roads that dominate rail transportation on the continent: Union Pacific, BNSF, CSX, Norfolk Southern, Canadian National, and Canadian Pacific. And the two remaining diesel builders are locked in a battle to become the locomotive supplier for the 21st century. Caterpillar®-owned EMD, no longer a divison of General Motors, is represented by the AC-traction-motored SD70ACe and its DC-traction sibling, the SD70M-2. General Electric’s standard bearers are the EVOs, the Evolution Series ES44AC and ES44DC.

At the heart of the Evolution Series is a brand new prime mover, the four-cycle, 12-cylinder GEVO-12. While producing the same 4400 horsepower as its 16-cylinder FDL-series predecessor, the GEVO-12 uses less fuel and spits out 40% fewer emissions. GE claims the EVOs are “the most fuel-efficient, most environmentally friendly diesel locomotives in history.” Everything about these locomotives has been examined, questioned, and re-thought, generating 25 new U.S. patents in the process. And every Big Seven railroad has ponied up to buy them, with the BNSF currently rostering the largest EVO fleet.

Our near-scale Imperial Series model of this diesel is a full 17” in length, yet operates comfortably on O-31 curves. Under the hood is the very same Proto-Sound 3.0 sound and control package found in our more expensive Premier model of this locomotive, with sounds recorded from the actual prototype. Additional Imperial features include variable-intensity diesel exhaust smoke, flashing ditch lights, and remote-controlled couplers so you can pick up and drop off a train anywhere on your layout.

Product Features

Set Features


  • ES44 Diesel Locomotive
  • Bay Window Caboose

    Locomotive Features


  • Intricately Detailed Durable ABS Body
  • Die-Cast Truck Sides, Pilots and Fuel Tank
  • Metal Chassis
  • Metal Handrails and Horn
  • (2) Handpainted Engineer Cab Figures
  • Authentic Paint Scheme
  • Metal Wheels, Axles and Gears
  • (2) Remote Controlled Proto-Couplers
  • Prototypical Rule 17 Lighting
  • Directionally Controlled Constant voltage LED Headlights
  • Lighted LED Cab Interior Light
  • Illuminated LED Number Boards
  • Operating LED Ditch Lights
  • (2) Precision Flywheel-Equipped Motors
  • Operating ProtoSmoke Diesel Exhaust
  • Onboard DCC Receiver
  • Locomotive Speed Control In Scale MPH Increments
  • Near Scale Sizing
  • Locomotive Measures: 17” x 2 1/2” x 3 3/4”
  • Operates On O-31 Curves

    Caboose Features


  • Intricately Detailed Durable ABS Body
  • Stamped Metal Floors
  • Metal Wheels and Axles
  • Die-Cast 4-Wheel Trucks
  • Fast-Angle Wheel Sets
  • Needle-Point Axles
  • Operating Metal Latch Couplers
  • Caboose Interiors With Overhead Lighting
  • Decorative Brake Wheels
  • Separate Metal Handrails
  • Near-Scale Proportions
  • Locomotive Measures: 17” x 2 10 1/4” x 2 1/2” x 4 1/4”
  • Operates On O-27 Curves