The NJ2 is a diesel-electric locomotive used by China Railway in the People's Republic of China. Built in Erie, Pennsylvania, it is based on a standard GE Transportation Systems GE Dash 9-44CW and marketed as GE C38AChe.

It was specially customised for high altitude operation on the Qinghai-Tibet Railway route. It is used on the Qingzang Railway that connects Xining, Qinghai Province, to Lhasa, Tibet Autonomous Region, in the People's Republic of China.

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  NJ2-0002
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  NJ2-0014
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  NJ2-0053
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  NJ2-0059 at Lhasa railway station

• C38Emi, a variant of GE Dash 9-44CW operating in Brazil
• GE C36-7, operated by China Railways as ND5 locomotives
• China Railways HXN5, GE Evolution ES-59ACi
• China Railways HXN3, another type of locomotive used for Tibet route, built by EMD.

• "ND5". Railways of China. 22 August 2004. Archived from the original on 2 August 2012.