Our Models

Reliable in Any Climate. Ready for Any Roadway.

Outperforming the Competition

Rail King models are robust, rugged and reliable, offering power and performance on road and rail. Factory options enable customization to your application.

Engineered to maximize safety, efficiency and operator comfort, Rail King has three side-mount cab models offering tractive effort ratings up to 46,550 pounds and two full-width cab models offering tractive effort ratings up to 50,000 pounds.

Designed with high visibility and versatility, Rail King units offer ultra-low emissions and lower fuel consumption. Anti-corrosion protection, heavy-duty steel frames and moisture resistance mean you have lower operation and maintenance costs for years.

Our Warranty

Rail King is robust, rugged and reliable. With the lowest cost of ownership, Rail King units offer long-term durability and low maintenance costs.

All new units come with the Rail King promise of quality, service and safety. To back that up, we offer an industry-leading, two-year/3,000-hour factory warranty for manufacturing defects to protect your investment.

Credit Application

Stewart & Stevenson and its dealer network have established long-term relationships with financial institutions that provide financing structured to address clients’ unique operational and budgetary requirements.

For new accounts or unit financing, complete the credit application form and send it to Rail King Equipment Sales.

RK285 G6

38,000 lbs | Tier 4F – 173 bhp | Full Width | Analog Controls
The RK285 G6 model is powered with the industry-leading Cummins QSB Tier 4(f) engine and John Deere drive train.

RK290 G6

41,500 lbs | Tier 4F – 173 bhp | Side Mount | Digital Controls
The RK290 G6 features the same engine and drive train with larger-capacity axles and more weight than the RK285.

RK300 G6

44,250 lbs | Tier 4F – 173 bhp | Side Mount | Digital Controls
The RK300 G6 offers the highest tractive effort rating in a single cab model. It is the heaviest of the three single cab models.