No photo available

ATSF GP9u

Built by EMD

Top speed

108 km/h

67 mph

Power output

1,300 kW

1,743 hp

Weight

148 t

326,284 lb

Length

17.12 m

56 ft 2 in

Track gauge

1,435 mm

Standard gauge

Years built

1954–1963

4,112 units

Overview of the ATSF GP9u

Discover the versatile EMD GP9u diesel locomotive, a reliable workhorse built between 1954 and 1963.

Originally produced by EMD, many of these robust units, identified by their iconic "GP9u" designation, underwent significant refurbishment by ATSF between 1978 and 1980, enhancing their operational capabilities.

With a top speed of 108 km/h and a substantial weight of 148 tons, the GP9u is designed for demanding tasks.

Its standard gauge of 1435 mm and Bo'Bo' wheel arrangement make it suitable for a wide range of railway applications.

The GP9u boasts impressive dimensions, measuring 17.12 meters in length, 3.14 meters in width, and 4.58 meters in height.

Its power output of 1300 kW and tractive effort of 19 kN ensure it can efficiently move freight and perform various railway services.

ATSF GP9u technical specifications

	Value	Imperial / US
Built by	EMD · 1954–19634,112 units
Refurbished	ATSF 1978 - 1980 (56)
Top speed	108 km/h67 mph	67 mph
Power output	1,300 kW1,743 hp	1,743 hp
Tractive effort	19 kN4,271 lbf	4,271 lbf
Track gauge	1,435 mmStandard gauge4 ft 8½ in	4 ft 8½ in
UIC axle arrangement	Bo'Bo'
Length	17.12 m56 ft 2 in	56 ft 2 in
Width	3.14 m10 ft 4 in	10 ft 4 in
Height	4.58 m15 ft 0 in	15 ft 0 in
Weight	148 t326,284 lb	326,284 lb