GO Transit, the interregional public transit system in Southern Ontario, has a number of various road and rail vehicles. This includes 91 locomotives, 979 train coaches, and 752 buses.

Rail

Locomotives

Active

The vast majority of GO Transit's active locomotive fleet consists of MP40PH-3C diesel-electric locomotives manufactured by MotivePower in Boise, Idaho. These replaced most of the older EMD F59PH over a 4-year transition program from 2008 to 2011. The new MP40 locomotives are significantly more powerful with 4000 bhp vs the F59's 3000 bhp, and their greater Head End Power capacity allows them to handle 12 coach trains instead of 10.^[1]

In 2011, GO Transit ordered 11 MPI MP54AC locomotives, to be rebuilt from existing units, followed by an order for 10 new build locomotives.^[2] MP40PH-3C unit 647 was sent back to Boise for conversion with a Cummins QSK-95 diesel engine into an MP54 in 2012, and was completed in 2015 (although dual Cummins QSK-60 engines were substituted instead). Testing of the first MP54AC began in December 2015, and the locomotive was formally delivered in March 2016, by which time GO Transit had increased its order for newbuild units to 16, for a total of 26.^[2][3] The order of 10 rebuilt units was later converted to newbuilds, the first of which was delivered in March 2018.^[4][5] While they are technically model MP54ACs, GO classifies them as MP40PHT-T4AC units.

Retired

Coaches

GO's railcar fleet is composed exclusively of Bombardier BiLevel Coaches manufactured by Bombardier Transportation or its predecessors in Thunder Bay, Ontario. Since January 2021, newer BiLevel coaches are manufactured by Alstom. In November 2021, the fleet comprised a total of 949 railcars, including cab car variants.^[6]

On June 1, 2012, Metrolinx contracted Bombardier to manufacture an additional 60 bilevel cab cars of an updated design incorporating crash energy management features and improved ergonomics.^{[clarification needed]} Deliveries of these models have been ongoing since 2015.^[7]

Manufacturer	Model	Built	Numbers		Notes
Hawker Siddeley Canada	Hawker Siddeley RTC-85 (single-level coach and cab car configurations)	1967-1976	1000-1105, 100-107 (Renumbered from many different series).	No	Original 1967 commuter car order built by Hawker Siddeley Thunder Bay, Ontario and based on the Hawker-Siddeley H-Series subway car. Purchased in cab car and coach configurations for push-pull service. Subsequent orders placed between 1967 and 1976 for more equipment. Some cars leased to MARC. Cars sold to ONR (16) and AMT (92) in the 1980s. 2 cars went to Pandrol-Jackson (Electric Tamper and Equipment Company) as crew-cars for railgrinding operations; 7 cars scrapped. Cab car 104 was restored by GO Transit in 2017, and is displayed at the Toronto Railway Museum in downtown Toronto.[8][9]
St Louis Car Company	Gallery coach/cab car 7600 series	1955	13 (test) run and several other 7600 series cars	No	Leased from C&NW; several 7600 series cars used with GO locomotive GP40 locomotives on runs beginning January 19, 1976 along Lakeshore Line.[10] C&NW coach #13 paired with GO Transit GP40-2L #9811 for test runs in April 1976[11]
Canadian Vickers	Gallery Bi-level Town Car based on Pullman Company bi level cars	1969	9XX-9XX	No	4 cars leased from Canadian Pacific Montreal-area commuter service (STCUM-AMT 900-series) for test runs in July 1974.
HSC	Bi-Level I coach	1976–1978	2000–2079	No	2000-2001, 2013-2014, 2016–2017, 2020, 2022, 2023-2024 sold to TRE, 1997, renumbered 1050-1059.
HSC	Bi-Level II coach	1983–1984	2100–2155, 200-214	No	All cab cars were initially decommissioned and converted into coaches in 2016-17, however they were rebuilt and converted once again into cab cars in 2022-23 and are currently beginning to return to service again.
UTDC	Bi-Level III coach	1987-1989	2200-2253, 215-223	No	223 sold to TRE in 1999, renumbered 1000. All other cab cars decommissioned and converted into coaches in 2016-17. Several extra cars leased from Tri-Rail, 2002.
UTDC	Bi-Level IV coach	1989–1990	2300-2341, 224-241	No (see note)	224 sold to TRE in 1999, renumbered 1001. All other cab cars decommissioned and converted to coaches in 2016-17. The 2300 series cars were converted in to accessible cars in 1995, and later converted back to non-accessible when the Series VII accessible cars came in to service.
UTDC	Bi-Level V coach	1990–1991	2400-2455, 2499	No	2499 was a next-generation prototype, which all future GO Transit coaches would be based upon.
Bombardier Transportation	Bi-Level VI coach	2002	2500–2521	Yes
Bombardier Transportation	Bi-Level VII coach	2003-2008	2522-2544, 2600–2661, 242-250	Yes (2522-2544 only)	5 orders. All cab cars decommissioned and converted into coaches in 2016-17.
Bombardier Transportation	Bi-Level VIII coach	2008–2015	2545-2560, 2700-2857, 251-257	Yes (2545-2560 only)	4 orders. 2545-2546, 2700-2729, 251-253 delivered 2008. 2547-2549, 2730-2754, 254, delivered 2009-2010. 2550-2554, 2755-2814, 255-257 delivered 2011-2013. 2555-2560, 2815-2857 delivered 2014-2015.
Bombardier Transportation	Bi-Level IX coach	2015–Present	4000-4225, 4500-4533, 300-380	Yes (4500-4528 only)	5 orders. 300-361 delivered 2015-2016. 362-366, 4000-4054, 4500-4504 delivered 2016-2017. 4055-4107, 4505-4519 being delivered throughout 2018. Cars 300-380 are cab cars with new Crash Energy Management (CEM) features. Final order of 36 coaches (4195-4225, 4529-4533) placed September 10, 2019.

Bus

GO Transit currently operates two types of buses: single-decker highway coaches, constituting 75% of the active fleet; and commuter-type double-decker buses, constituting the remaining 25%. All vehicles run on diesel fuel.

• The current highway coach fleet consists exclusively of D4500-model coaches built by Motor Coach Industries (numbered from 2100 onwards). The first of these coaches were ordered in 2001 and orders have continued until 2015. They have a length of 45 feet (14 m). All orders since 2005 (from 2267 onwards) are of a facelifted design, designated as D4500CT, and two of these vehicles (3000 and 3001), ordered in 2008, have a hybrid-electric drivetrain and are model D4500CTH. Older vehicles in the fleet are retired after reaching a certain mileage; as of 2017, the oldest vehicles in the active fleet were made in 2004.
• The double-decker fleet uses Alexander Dennis Enviro500s. They come in three distinct configurations, differing mainly in height and distinguishable external appearance:
  • The standard-height version (numbered in the 8000s) are 43 feet (13 m) in length and have a height of 4.2 metres (13 ft 9 in). Built in Falkirk, Scotland, they entered service in 2008, but their height prevents them from meeting many height standards set by the provincial Ministry of Transportation, restricting their usage to the Highway 407 and Highway 403 corridors, providing service between Peel and York Regions.
  • The Go-Anywhere version (numbered in the 8100s and 8200s) are the same length, but have a shorter height of 4.1 metres (13 ft 5 in). This variant, also made in Falkirk, entered service in 2012, and their lower height allows these buses to meet many more clearance standards as a result and are used on a wider variety of routes, including those that travel on Highway 401 into Durham Region.
  • The Super-Lo version (numbered in the 8300s) are longer than previous orders, at 45 feet (14 m) in length, but have an even shorter height of 3.9 metres (12 ft 10 in). Developed specifically for the GO Transit network, it is capable of accessing bus terminals with height restrictions that prevent previous double-deckers accessing them. They are also the first double-decker buses to be manufactured locally (from a newly established facility in Vaughan). The first of these vehicles entered service in 2016 and orders are ongoing to replace older single-decker coaches. By 2020, Metrolinx estimates that 75% of the active fleet would be composed of double-deckers.

In May 2023, GO Transit placed two electric buses into revenue service on a trial basis. They had been tested without passengers since December 2021. An electric bus costs $1.5 million compared with $700,000 for a diesel bus; the electric bus has lower fuel and maintenance costs. Between charges, an electric bus can run about 225 kilometres (140 mi) in winter and 300 kilometres (190 mi) in summer; GO bus routes can be as long as 650 kilometres (400 mi). Battery charging takes 3–4 hours at garages.^[12]

Active

Year	Make	Model	Length		Engine	Numbers	Notes
2006	MCI	D4500CT	45.42 ft (13.84 m)	Yes	Caterpillar C13 EPA 2004	2298–2317
2007	MCI	D4500CT	45.42 ft (13.84 m)	Yes	Caterpillar C13 EPA 2004	2318–2353
2008	MCI	D4500CT	45.42 ft (13.84 m)	Yes	Caterpillar C13 EPA 2007	2354–2419
2009	MCI	D4500CTH (Hybrid)	45.42 ft (13.84 m)	Yes	Cummins ISL 330HP EPA 2007[13]	3000-3003
2009	MCI	D4500CT	45.42 ft (13.84 m)	Yes	Cummins ISM EPA 2007	2420–2439
2012	Alexander Dennis	Enviro500	42 ft (12.8 m)	Yes	Cummins ISL (EPA 2010)	8101-8205
2013	Alexander Dennis	Enviro500	42 ft (12.8 m)	Yes	Cummins ISL (EPA 2013)	8126-8165	8131 caught fire and stored.[14]
2014	Alexander Dennis	Enviro500	42 ft (12.8 m)	Yes	Cummins ISL (EPA 2013)	8166-8195
2015	Alexander Dennis	Enviro500	42 ft (12.8 m)	Yes	Cummins ISL (EPA 2013)	8195-8205
2016	Alexander Dennis	Enviro500 'SuperLo'	42 ft (12.8 m)	Yes	Cummins ISL (EPA 2016)	8300-8337
2017	Alexander Dennis	Enviro500 'SuperLo'	42 ft (12.8 m)	Yes	Cummins ISL (EPA 2016) / Cummins L (EPA 2016)	8338-8378
2017-2018	Alexander Dennis	Enviro500 'SuperLo'	42 ft (12.8 m)	Yes	Cummins L (EPA 2016)	8379-8429
2019	Alexander Dennis	Enviro500 'SuperLo'	42 ft (12.8 m)	Yes	Cummins L (EPA 2016)	8430-8470

• 
  GO Transit MCI D4500 with original paint scheme
• 
  GO Transit MCI D4500CT with original paint scheme
• 
  Back view of the 2007 GO bus paint scheme back view
• 
  Front view of the 2007 GO bus paint scheme
• 
  A D4500CT with the 2013 GO two-toned livery
• 
  Standard-height Alexander Dennis Enviro500
• 
  Go-Anywhere height Alexander Dennis Enviro500
• 
  Super-Lo height Alexander Dennis Enviro500

Retired

Previously, GO Transit also operated suburban-style transit buses from General Motors, Orion Bus Industries, and New Flyer Industries, and motor coaches by Prevost Car. GM buses were manufactured in London, Ontario and Orion buses in Mississauga, Ontario. All of these older vehicles are now retired.

Year	Make	Model	Length		Engine	Numbers
1970	GMDD	T8H-5305A	40 ft (12.2 m)	No	Detroit Diesel 8V71	1000–1019
1973	GMDD	T8H-5307A	40 ft (12.2 m)	No	Detroit Diesel 8V71	1020–1029
1974	GMDD	T8H-5307A	40 ft (12.2 m)	No	Detroit Diesel 8V71	1030–1039, 1120–1123
1975	GMDD	T8H-5307A	40 ft (12.2 m)	No	Detroit Diesel 8V71	1045–1056
1976	GMDD	S8H-5304A	40 ft (12.2 m)	No	Detroit Diesel 8V71	1060–1099
1977	GMDD	T8H-5307A	40 ft (12.2 m)	No	Detroit Diesel 8V71	1100–1119
1985	Ontario Bus	Orion I 01.508	40 ft (12.2 m)	No	Detroit Diesel 6V92TA	1125–1129
1987	Ontario Bus	Orion I 01.508	40 ft (12.2 m)	No	Detroit Diesel 6V92TA	1130–1141
2000	Orion Bus	Orion V 05.501	40 ft (12.2 m)	Yes	Detroit Diesel S50	1150–1163
2002	Orion Bus	Orion V 05.501	40 ft (12.2 m)	Yes	Detroit Diesel S50	1164–1173
1975	MCI	MC-8	40 ft (12.2 m)	No	Detroit Diesel 8V71	1250–1262
1978	MCI	MC-8	40 ft (12.2 m)	No	Detroit Diesel 8V71	1270–1281
1980	MCI	MC-9	40 ft (12.2 m)	No	Detroit Diesel 8V71	1290–1294
1981	MCI	MC-9	40 ft (12.2 m)	No	Detroit Diesel 8V71	1300–1324
1986	MCI	102-A2	40 ft (12.2 m)	No	Detroit Diesel 6V92TA	1400–1416
1987	MCI	102-A2	40 ft (12.2 m)	No	Detroit Diesel 6V92TA	1417–1425
1988	MCI	102-A2	40 ft (12.2 m)	No	Detroit Diesel 6V92TA	1426–1435
1989	MCI	102-A2	40 ft (12.2 m)	No	Detroit Diesel 6V92TA	1436–1445
1990	MCI	102-A2	40 ft (12.2 m)	No	Detroit Diesel 6V92TA	1446–1458
1991	MCI	102-A2	40 ft (12.2 m)	No	Detroit Diesel 6V92TA	1459–1468
1990	MCI	102-A3	40 ft (12.2 m)	No	Detroit Diesel 6V92TA	1500–1514
1993	MCI	102-C3	40 ft (12.2 m)	No	Cummins L10	1520–1531
1999	Prevost	LeMirage XL	40 ft (12.2 m)	Yes	Detroit Diesel Series 60	1600–1609
1991	New Flyer	D40S	40 ft (12.2 m)	No	Detroit Diesel 6V92TA	1900–1950
2000	Orion	V 05.501	40.71 ft (12.41 m)[15]	Yes	Detroit Diesel Series 50	2000–2007
2001	Orion	V 05.501	40.71 ft (12.41 m)	Yes	Detroit Diesel Series 50	2008, 2010, 2012, 2014, 2016
2008	Alexander Dennis	Enviro500	42 ft (12.8 m)	Yes	Cummins ISM EPA 2007	8000-8011
2009	Alexander Dennis	Enviro500	42 ft (12.8 m)	Yes	Cummins ISM EPA 2007	8012-8021

Support vehicles