Produced on Stewart & Stevenson’s Houston manufacturing flow line, Rail King is engineered to provide the Best Value in the industry. Available in several reliable, efficient and cost-effective models, Rail King provides maximum tractive effort up to 33,000 pounds for single-coupled versions, and up to 49,000 pounds for double-coupled versions.

Rail King features side-mount or full-width cabs with dual direction controls, both road wheels and rail wheels for quick, easy mobility on tracks and roadways, the patented cushion coupler system, and an enclosed, insulated cab with 360-degree visibility for operator safety and efficiency. All models feature a three-point Royalglide suspension system.

Model Weight (lbs.) Tractive Effort (lbs., single coupled) Cab Style Engine (Cummins QSB) Controls
RK290 G4 43,250 30,300 Side Mount Tier 3 – 173 hp Analog
RK290 G5 43,250 30,300 Side Mount Tier 4i – 173 hp Digital


  • Systems designed for ease of service, resulting in less downtime and reduced maintenance costs
  • Royalglide suspension system
  • More standard features on all new model Rail King rail car movers
  • Insulated cabs with wide entry doors, more head and leg room, easy-to-use controls and 360-degree visibility
  • Both road wheels and rail wheels for quick and easy mobility on tracks and roadways
  • Exceptional performance - typically outperforms competitive models of same class size
  • Many factory options available to fit any application, including remote control
  • Patented cushioned coupler system, full floating frame and cab design that provides a smooth ride on rail
  • Common Sense Engineering - maximum efficiency with safety and operator comfort

  • Controls: Analog or Digital
  • Weight: 43,250 lbs
  • Cab Style: Side Mount
  • Engine (Cummins QSB): Tier 3 - 173 hp or Tier 4 - 173 hp
  • Tractive Effort: 30,300 lbs
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