![mtu solutions on Twitter: "Two new U.S. EPA Tier 4-compliant locomotives with MTU engine power completed trials and are now in service on the California Northern Railroad Company. https://t.co/y0OztjUZUY #technology #sustainable #emissions mtu solutions on Twitter: "Two new U.S. EPA Tier 4-compliant locomotives with MTU engine power completed trials and are now in service on the California Northern Railroad Company. https://t.co/y0OztjUZUY #technology #sustainable #emissions](https://pbs.twimg.com/media/EAUS1vqXUAI2h_Y.jpg)
mtu solutions on Twitter: "Two new U.S. EPA Tier 4-compliant locomotives with MTU engine power completed trials and are now in service on the California Northern Railroad Company. https://t.co/y0OztjUZUY #technology #sustainable #emissions
![Tognum and Transmashholding announce diesel engine joint venture | News | Railway Gazette International Tognum and Transmashholding announce diesel engine joint venture | News | Railway Gazette International](https://d1c4d7gnm6as1q.cloudfront.net/Pictures/480xany/0/3/0/6030_tn_tognum-mtu-engine-20v4000r43_01.jpg)
Tognum and Transmashholding announce diesel engine joint venture | News | Railway Gazette International
![Chinese locomotive manufacturer CNR Dalian and its local South African Consortium orders 232 MTU Series 4000 engines from Rolls-Royce | EuropaWire.eu | The European Union's press release distribution & newswire service Chinese locomotive manufacturer CNR Dalian and its local South African Consortium orders 232 MTU Series 4000 engines from Rolls-Royce | EuropaWire.eu | The European Union's press release distribution & newswire service](https://news.europawire.eu/wp-content/uploads/2015/01/Chinese-locomotive-manufacturer-CNR-Dalian-and-its-local-South-African-Consortium-orders-232-MTU-Series-4000-engines-from-Rolls-Royce.jpg)
Chinese locomotive manufacturer CNR Dalian and its local South African Consortium orders 232 MTU Series 4000 engines from Rolls-Royce | EuropaWire.eu | The European Union's press release distribution & newswire service
![Layout of the main equipment of the upgraded diesel-electric locomotive... | Download Scientific Diagram Layout of the main equipment of the upgraded diesel-electric locomotive... | Download Scientific Diagram](https://www.researchgate.net/publication/316873397/figure/fig3/AS:493420490825730@1494652020354/Layout-of-the-main-equipment-of-the-upgraded-diesel-electric-locomotive-TEP-70-1.png)