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Standard Features
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The Rail King RK300 Mobile Railcar Mover provides up to 46,550 pounds of tractive effort. Design features that increase operator safety and productivity include:

  • Enclosed insulated cab with 360-degree visability. Ergonomically designed with touch hydraulic controls. Standard equipment includes windshield wipers front and rear, cab heater, two defrost fans and full instrumentation including tachometer and tinted safety glass.
  • Patented cushion coupler system, full-floating frame and cab design that provides a smooth ride on rail.
  • Wider and taller cab-entry doors, more floor space, more leg room, dual operator controls, one-piece dual seat, and insulated engine cowling for operator comfort.
  • Hydraulically driven train air compressor for reliable service.
  • Cab deck includes walkover platform, stair-step ladder and solid bar stock hand railing. Large rubber isolators support the cab.
  • Full light package (coupler, railwheel, stop, red and white interior, headlights, step lights and flashing beacon).
  • Hydraulic control system consolidated and located for ease of servicing and maintenance.


Rail King
Model Year
RK300 G4
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177 in.
On Road: 142 in.
On Rail: 132 in.
120 in.
43,250 lbs.
Ground Clearance
Road Clearance: 10 in.
Rail Clearance: 3 in.

Engine & Drivetrain

Engine Make
Engine Model
QSB 6.7
Engine Type
Electronic, 4-cycle, turbo-charged, Tier III compliant
Rated Power
185 bhp @ 2,200 rpm
Fuel Tank Capacity
40 gal.
4-speed, autoshift or powershift


Heavy-duty, welded from 2 in. steel plate


Multiple wet-disk
Road Wheels
Hard rock lug 14-ply 10.00 x 20
Rail Wheels
28 in. heat-treated cast steel


Full hydrostatic power
2, fabricated steel
Maximum Tractive Effort
Both Couplers: 46,550 lbs.
One Coupler: 30,300 lbs.
On Road: 9 mph
On Rail: 15 mph

Standard Features

Design Features
 Friction roadwheel drive  
 4-speed transmission, autoshift or powershift selection  
 Crossover platform  
 360 operator visibility  
 Full width bumpers to protect powertrain  
 Good floor space and cab height for ease of operator movement  
 Fabricated steel couplers    
 Heavy-duty, welded from 2 in. steel plate  
 Sound-attenuating, spark-arresting with safety shield, raincap  
 John Deere DF150 with torque converter, 4 speeds forward and reverse, autoshift or powershift selection  
Rail- & Road-Drive
 John Deere spiral bevel gear set; designed for bi-directional operation, no spin differential with internal planetary axles. Friction drive transmitted from rail-drive axle incorporates separate braking system. Does not require special tires. Rail shock absorption system standard.  
 Inboard multiple wet-disk brakes. Protected from contaminants and can last up to 4 times longer than dry-disc brakes. Sparkfree for regulatory compliance in hazardous environments.  
 28 in. diameter heat-treated cast steel. Tapered tread contour to AAR specifications.  
 Heavy duty rock lug industrial tires.  
Pneumatic System
 High capacity 50 cfm air compressor system. Includes 2 compressors, 3 reservoirs with drains, air dryers, lever operated pressure control valve with emergency stop capability.  
Power Steering
 Full hydrostatic power steering.  
 Two weight-transfer couplers made from fabricated steel (no castings). Couplers slide on high-density self-lubricating nylon bearings for long life and minimal maintenance. This heavy-duty coupler system operates on a center pivot housed in a massive synthetic rubber cushion pressed into both sides of the frame.  
 Replaceable steel sandboxes and 8 air-operated sanding tubes with easy clean receivers: 2 for each rail wheel, front and back.  
Dual-direction Cab
 Provides excellent visibility. Improved height for ease of moving around. Standard equipment includes dual controls, 1-piece dual seat providing more adjustment for operator, front and rear wipers, heater, 2 defrost fans and tempered safety glass. Full size doors permit easy access in and out of cab.  
 Improved console with electric switches to implement functions at each operating position. Instrument panel positioned for viewing ease of operator.  
Other Features
 Air blast horn  
 Protect-o-seal fuel cap  

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