| Motive Power Industries MP21B  | 
|  | 
| Data Sheet Compiled by:   Jean-Denis Bachand | 
| Revised:  23 April 2014 | Artwork by:  Jean-Denis Bachand | 
| - | 
| Engine Builder: Cummins | Engine:  QSK19 (3) 6L | 
| Cycle:  4 | EPA Tier 3 | 
| Number of Engines: 3 | Total Horsepower:  2100 | 
| Main Generator: KATO | Model:  300 | 
| Gear Ratio: 62:15 | Speed: 50 mph | 
| Trucks:   4-Wheel | Configuration: B-B | 
| Traction Motor Blowers: Delco (4) | Model: Electrical Drive | 
| Weight: 270,000 lbs | Traction Motors: GM D77/78 (4) | 
| Tractive Effort (starting) 85,000 lbs @ 25% | Tractive Effort (continuous): 55,000 lbs @ 9.3mph | 
| Multiple Unit Capability: Yes | Dynamic Braking:  Optional | 
| Auxilary Generator:  Newage | Alternator:  1800 rpm constant speed | 
| Air Compressor: | Electric-driven rotary screw | 
| Air Brake:  Westinghouse | Model:  26L | 
| Quantity Built:  1 | Dates: 12/2007 to Date | 
| - | - | 
| Exterior Dimensions | MP21B | 
| Total Length | 59'-02" | 
| Wheel Diameter | 40" | 
| Truck Wheel Base | 9'-00" | 
| Height to Top Cab | 15'-05" | 
| Cab Width | 10'-04" | 
| Height of Walkway | 9'-04.5" | 
| Distance between truck centers: | 34'-00" | 
| Locomotive Wheelbase: | 43-00" | 
| Minimum Turning Radious | 30 degrees | 
| - | - | 
| Fuel Oil:  2500 | Sand Capacity:  26 cu. ft. | 
| Options: 
Q-Tron QES III Microprocessor 
Constant-speed Generator/Alternator
Individual Motor Cut-out | 
| - | 
| 
Trains, December 2007
Motive Power Industries, Technical Data Brochure |