Developed in 1990 and produced in four technologically improved generations, Stewart & Stevenson's Rail King supports railcar switching operations throughout North America and overseas. Produced on Stewart & Stevenson's lean manufacturing flow line, Rail King is considered the Best Value in the industry. Engineered to maximize efficiency, safety and operator comfort, Rail King offers:- Exceptional performance and reliability- Smooth ride on rail- Easy to use controls- Ease of service- Reduced operation and maintenance costs