M9 (railcar)

M9/M9A
LIRR M9 #9002 leaving Woodside
Inside an M9 EMU
In serviceLIRR: 2019–present
ManufacturersM9: Kawasaki Heavy Industries
M9A: Alstom
Built at (Kawasaki, M9)
Family nameM-series
ReplacedAll remaining M3s and M3As.
ConstructedM9: 2017–2024
M9A: 2025-present
Entered serviceM9: September 11, 2019
Number under constructionM9A: 318
Number builtM9: 202
M9A: 0
FormationMarried pairs
Fleet numbersM9:
LIRR: 9001–9202
M9A:
LIRR: TBD
MNR: TBD
CapacitySeated passengers: 111 (A car); 101 (B car)
OperatorMTA (Long Island Rail Road) (Metro-North Railroad)
Specifications
Car length85 ft (26 m)
Width10 ft 8 in (3.25 m)
Height12 ft 11.625 in (3.95 m)
Floor height48 in (1,200 mm)
Maximum speed
  • 100 mph (161 km/h) (design)
  • 80 mph (129 km/h) (service)
Traction systemM9: Mitsubishi Electric hybrid SiC-IGBTVVVF inverter
M9A: Alstom MITRAC IGBT-VVVF inverter
Traction motors8 × 275 hp (205 kW) Mitsubishi asynchronous 3-phase AC
Power output2,200 hp (1,600 kW) per unit
Acceleration2 mph/s (3.2 km/(h⋅s))
Deceleration
  • 3 mph/s (4.8 km/(h⋅s)) (service)
  • 3.2 mph/s (5.1 km/(h⋅s)) (emergency)
Electric systemsThird rail750 V DC
Current collectionContact shoe
UIC classificationBo′Bo′+Bo′Bo′
AAR wheel arrangementB-B+B-B
Braking systemsPneumatic, dynamic/regenerative
Safety systemsATC and Pulse code cab signaling
Coupling systemBudd Pin and Cup coupler
Track gauge4 ft 8+12 in (1,435 mm) standard gauge

The M9 is a class of electric multiple unit railroad cars being built by Kawasaki Heavy Industries for use on the MTA's Long Island Rail Road (LIRR) and Metro-North Railroad. They entered service September 11, 2019. These cars will replace the M3/M3A railcars built during the early 1980s, as well as expand the LIRR fleet to provide additional service after the completion of the LIRR's East Side Access project. A separate order of cars purchased for the LIRR and Metro-North using federal funding for the East Side Access project will also be designated M9A, these being built by Alstom.