NJ2
Type and origin Power type Diesel-electric Builder GE Transportation Systems Model C38AChe Build date 2006–2007
Specifications Configuration: ​  • UIC Co′Co′ Gauge 1,435 mm (4 ft 8+1⁄2 in) Axle load 23 t (23 long tons; 25 short tons) Loco weight 138 t (136 long tons; 152 short tons)
Performance figures Maximum speed 120 km/h (75 mph) Power output 3,800 kW (5,100 hp)
Career Operators Qingzang railway Numbers NJ20001-NJ20078 Locale China

NJ2 is a class of diesel-electric locomotives employed by China Railway. 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. It is a 3,800 kW (5,100 hp) Co-Co design (Railway Magazine Dec 2006 p36).