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
RK320 G4 49,000 32,400 Full Width Tier 3 – 173 hp Analog
RK320 G5 49,000 32,400 Full Width Tier 4i – 173 hp Digital


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

  • Weight: 49,000 lbs
  • Cab Style: Full Width
  • Controls: Analog or Digital
  • Tractive Effort: 32,400 lbs
  • Engine (Cummins QSB): Tier 3 - 190 hp or Tier 4f - 195 hp
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