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
RK330 G4 51,500 33,000 Full Width Tier 3 – 204 hp Analog
RK330 G5 52,500 33,825 Full Width Tier 4f – 195 hp Digital


  • Both road wheels and rail wheels for quick and easy mobility on tracks and roadways
  • Insulated cabs with wide entry doors, more head and leg room, easy-to-use controls and 360-degree visibility
  • Royalglide suspension system
  • Common Sense Engineering - maximum efficiency with safety and operator comfort
  • Exceptional performance - typically outperforms competitive models of same class size
  • 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
  • More standard features on all new model Rail King rail car movers
  • Many factory options available to fit any application, including remote control

  • Cab Style: Full Width
  • Engine (Cummins QSB): Tier 3 - 204 hp or Tier 4f - 195 hp
  • Weight: 51,500 lbs or 52,500 lbs
  • Tractive Effort: 33,000 lbs or 33,825 lbs
  • Controls: Analog or Digital
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