MotivePower is committed to assisting railroads in their ongoing efforts to reduce locomotive emissions and improve operating efficiencies. We designed and manufactured the only four liquefied natural gas locomotives operating in North America and were the first to provide Tier 2 low horsepower locomotives and Tier 2 commuter locomotives.
Replacing the single conventional engine on switchers with two or more smaller, more technically-advanced engines offers significant operational savings and environmental benefits. MotivePower's first three-engine locomotive is available for field demonstrations. A two-engine model will also be available.
|MP21B Multi-Engine||MP20B Single Engine||MP20C Single Engine|
|Horsepower||2,100 (700 bhp x 3)||2,000 thp||2,000 thp|
|Engine||Cummins QSK-19 (Tier 3 nonroad)||MTU-Detroit Diesel 12V4000 (or equivalent)||MTU-Detroit Diesel 12V4000 (or equivalent)|
|Traction motors||D77 / D78||D77 / D78||D77 / D78|
|Maximum speed (nominal)||50 mph||70 mph||70 mph|
|Continuous tractive effort||55,000 lbs||55,000 lbs||82,000 lbs|
|Starting tractive effort||85,000 lbs||85,000 lbs||128,000 lbs|
|Weight (nominal)||275,000 lbs||277,000 lbs||390,000 lbs|
|Length||59' 2"||59' 2"||68' 2"|
|Height||Plate C / Plate L||Plate C / Plate L||Plate C / Plate L|
|Fuel capacity||2,500 gal||2,500 gal||3,900 gal|
|Alternators||1800 rpm constant speed||Kato 350 KVA variable speed||Kato 350 KVA variable speed|
|Air compressor||Electric driven rotary screw||WLN||WLN|
|Locomotive control||Q-Tron QES-III microprocessor||Q-Tron QES-III microprocessor||Q-Tron QES-III microprocessor|
|*1,400 bhp model (MP14B) coming soon||*Tier 2 MPXpress commuter locomotive also available|
Download a printable version of the MPEX Low Emissions Locomotives brochure.