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The EMD F59PH is a four-axle 3,000 hp (2 MW) B-B diesel-electric locomotive built by General Motors Electro-Motive Division from 1988 to 1994. A variant, the F59PHI, was produced from 1994 to 2001. The F59PH was originally built for GO Transit commuter operation in the Toronto region. Metrolink in Southern California also purchased a fleet for its 1992 launch. The streamlined F59PHI was designed for Amtrak California intercity service. A total of 72 F59PH and 83 F59PHI locomotives were built.

EMD F59PH and F59PHI
Two F59PH locomotives owned by GO Transit at Oakville station in 2008
Type and origin Power type Diesel-electric Builder Electro-Motive Division (EMD) Build date 1988 to 1994 (F59PH) 1994 to 2001 (F59PHI) Total produced 72 (F59PH); 83 (F59PHI)[1]
Specifications Configuration: ​  • AAR B-B Gauge 4 ft 8+1⁄2 in (1,435 mm) standard gauge Length F59PH: 58 ft 2 in (17.73 m) F59PHI: 58 ft 7 in (17.86 m)[2] Prime mover EMD 12-710G3A (F59PH)[3] EMD 12-710G3C-EC (F59PHI)[4] Cylinders 12
Performance figures Maximum speed 110 mph (177 km/h) (F59PHI)[4] Power output F59PH: 3,000 hp (2.24 MW) F59PHI: 3,200 hp (2.4 MW)
Career Locale Canada, United States

F59PH

Between May 1988 and May 1994, 72 F59PH locomotives were built for two commuter transit railroads: GO Transit of Toronto and Metrolink of Los Angeles.[1] The locomotives had a turbocharged EMD 12-710G3A, a 12-cylinder, two-stroke Diesel engine (prime mover).[5] Head end power was supplied by a separate diesel generator.[6]

GO Transit began retiring its F59PH locomotives in 2008 in favor of newer MPI MPXpress locomotives.[5] Most were purchased by other operators including Exo (10 locomotives),[7] Metra (3),[8][9] NCDOT (11) for use on the Piedmont,[10][11] and Trinity Railway Express (7).[12] Five of the NCDOT units were rebuilt into cab control units without prime movers.[13]

Seven Metrolink units were rebuilt as F59PHR. The non-rebuilt Metrolink locomotives were retired by 2020.[14] Five of those were purchased by NCDOT in 2018.[15]

Original owners

Owner	Number	Year built	Unit numbers	Refs
GO Transit	49	1988–1994	520–568	[1]
Metrolink	23	1992–1993	851–873	[14]

F59PHI

The F59PHI is a variant with a fully enclosed streamlined carbody. The first nine units were purchased by Caltrans for use on Amtrak California services and entered service in 1994. It was the first locomotive in the United States which met California's stringent emission standards.[16] Like the F59PH, the F59PHI is equipped with a secondary electrical generator – rated between 500 and 750 kW (670 and 1,010 hp) – for HEP.[17] A total of 83 locomotives were built, most for commuter rail and Amtrak corridor services on the West Coast.[18]

Two F59PHI locomotives were built in 1995 for Philip Morris Companies to haul the Marlboro Unlimited, a custom built luxury train to carry winners of a Philip Morris sweepstakes around the country. After Philip Morris cancelled the train, the units were stored, then, sold to Metrolink in 1998.[19][20]

Some units are still in service with the original owners, while others have been retired. The 21 ex-Amtrak units were sold to Metra in 2018.[21]

Original owners

Owner	Number	Year built	Unit numbers	Refs
Amtrak (for Pacific Surfliner and Cascades)	21	1998	450–470	[21][4][22]
Caltrans (for San Joaquin and Capitol Corridor)	9	1994	2001-2009	[22][23]
	6	2001	2010-2015
Exo	11	2000-2001	1320-1330	[18]
Metrolink	8	1995	874–881	[14][19][20]
	2	1995	882–883
	4	2001	884–887
NCDOT (for Piedmont)	2	1998	1755, 1797	[18][24]
North County Transit District (Coaster)	2	2001	3001-3002	[25][26]
Sound Transit (Sounder Commuter Rail)	11	1998-2001	901-911	[27]
Trinity Railway Express	2	2001	569-570	[12]
West Coast Express	5	1995	901-905	[28][29]

Notes

References

• McDonnell, Greg (2015). Locomotives: The Modern Diesel and Electric Reference (2nd ed.). Richmond Hill, Ontario: Boston Mills Press. ISBN 978-1-77085-609-7.
• Solomon, Brian (2011). Modern Diesel Power. Minneapolis, MN: Voyageur Press. ISBN 978-0-76-033943-5.

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