Amtrak Locomotive Roster: Historical Power & Current Fleet

Published: August 14, 2026

This page combines two layers: (1) the historical Amtrak motive-power research long published on American-Rails.com (heritage E/F units through Genesis and first-generation corridor electrics), and (2) a mid-2020s current-fleet snapshot reflecting Siemens Charger deliveries, ACS-64 electrics, NextGen Acela, and Airo dual-modes. It is not a live equipment register—road numbers were reused over the decades, and active counts change as units are delivered, stored, or retired. Company history and network context: Amtrak hub. Experimental trainsets: unique trainsets.

New ALC-42s lead the Captiol Limited at Martinsburg, WV in August, 2023

A pair of then nearly-new ALC-42s, #329-330, have the Capitol Limited out of Chicago running nearly 3 1/2 hours late on the afternoon of Friday August 11, 2023 at Martinsburg, WV as the train rolls by the historic B&O Roundhouse and Shop Complex as it begins its station stop before heading eastward towards its terminus in Washington DC. Jon Wright photo.

On this page: Current fleet (mid-2020s) · Historical diesels · Electrics (historic + current) · Self-propelled / RDC / Turbo · NPCUs · Related

Current Fleet Snapshot (Mid-2020s)

Amtrak has taken substantial new power since the late 2010s. The big change is the Siemens Charger family for diesel long-distance and corridor work, while the NEC remains dominated by ACS-64 electrics and a new generation of high-speed trainsets.

Type	Builder / model	Typical numbers / program	Status notes (mid-2020s)
Long-distance diesel	Siemens ALC-42 Charger (~4,200 hp)	Amtrak order of 125 (75 + 50 option); road numbers in the 300–424 range as units arrive	First units entered revenue service 2022 (e.g. Empire Builder). Deliveries continued through the mid-2020s; Amtrak public messaging in 2026 cited on the order of ~79 of 125 delivered, with the balance still coming. Gradually displacing aging P42 Genesis units on national trains.
Corridor diesel (state / Amtrak)	Siemens SC-44 Charger	State-owned and Amtrak-related pools (e.g. Caltrans ~2100s, WSDOT Cascades units, Midwest corridor pools; AR’s older 4601–4633 Midwest note overlaps this program era)	In service since late 2010s on many state-supported routes. Supplements or replaces older P42/F59 assignments on corridors.
Airo dual-mode / dual-power	Siemens ALC-42E (and related Airo power)	Airo program locomotives (Cascades early sets; broader national Airo fleet in production)	Built for Siemens Airo corridor trainsets. Cascades Airo revenue service targeted 2026; Northeast Regional Airo testing/production into 2026–27. Early ALC-42E units (e.g. 70001-series reporting) delivered with trainsets for testing.
Legacy long-distance / general diesel	GE P42DC Genesis	1–207 (as built 1996–2001)	Still common on many trains but the fleet is aging; ALC-42 is the designated national-network replacement. Active count shrinks as Chargers arrive and P42s are stored or retired.
Dual-mode (Empire / GCT)	GE P32AC-DM	700–717	Still the Empire Corridor dual-mode class for third-rail / diesel; not replaced one-for-one by ALC-42 diesels.
NEC electric	Siemens ACS-64	~600–670 series (70 ordered; 67+ active in typical tallies)	Primary NEC electric locomotive for Regionals and many consists since mid-2010s. Replaced AEM-7s and HHP-8s in regular service.
High-speed trainsets	Alstom NextGen Acela (Avelia Liberty lineage)	New trainsets (power cars + coaches as sets)	Entered NEC revenue service August 2025, succeeding first-generation Acela Express sets (Bombardier/Alstom power cars 2000–2039 era).
First-generation Acela	Bombardier/Alstom Acela Express	Power cars 2000–2039	Being phased out as NextGen Acela ramps up; no longer the long-term NEC flagship fleet.

Bottom line: Compared with a ~2019 snapshot, Amtrak has added (or is adding) a full national ALC-42 fleet, widespread state/corridor SC-44 Chargers, Airo dual-mode power, and NextGen Acela sets—while P42s, first-gen Acela, and older electrics move toward secondary roles or retirement. Yard switchers and NPCUs continue in terminal service as separate classes.

Historical Diesel Roster (Series Summary)

The original AR Amtrak page listed hundreds of individual road numbers (especially renumbered E-units and RS3s). Below is that research grouped by series. Heritage F/E/RS fleets arrived from joining railroads; SDP40F and F40PH defined the first national diesel image; Genesis bridged to the Charger era.

Road numbers (AR research)	Builder	Model	Built / acquired	Notes / history
1–207	GE	P42DC	1996–2001	Purchased new (Genesis); still active mid-2020s but being replaced on LD by ALC-42
1, 3	EMD	SW8	1953	ex-New Orleans Union Passenger Terminal
5, 6, 9	GE	65-ton	1942–43	ex-Army / ordnance works
7, 77	GE	45-ton	1941	ex-Kingsbury Ordnance Works
44, 46–47, 59, 62	Alco	RS1	1945–50	ex-Washington Terminal
100–123 (F/FP)	EMD	F7A / FP7	1949–53	ex-NP, SP heritage units
100–144 (RS)	Alco	RS3 / RS3M	1950–55	ex-NYC, PRR, NH
150–164	EMD	F7B / F3B	1947–53	ex-GN, NP, SP boosters
192–199	GMDD	GP40TC	1966–68	ex-CP / GO Transit
200–229 (1st F40)	EMD	F40PH	1976	Purchased new
200–277 (E-units)	EMD	E8A / E9A / E8B / E9B	1939–61	Heritage from many roads (B&O, C&O, RF&P, ACL, SAL, NYC, PRR, UP, CB&Q, IC, etc.)
230–269	EMD	F40PHR	1977–78	Purchased new
231–242 / 480–491	EMD	FL9	1956–57	ex-New Haven dual-mode
270–409 (F40 series)	EMD	F40PH / F40PHR	1977–88	Purchased new (multiple orders); many later became NPCUs
450–470	EMD	F59PHI	1998	Purchased new (corridor); largely succeeded by Chargers on many routes
500–649	EMD	SDP40F	1973–74	Purchased new (150 units; later traded for F40s)
500–519 (2nd)	GE	B32-8WH (Dash 8-32BWH)	1991	Purchased new
530–541, 569	EMD	MP15DC / SW1500 / SW1001	1973–75	Switchers (P&LE, PC, Reading heritage)
570–579	MPI	GP15D	2004	Acquired new
590–599 series	MPI / NRE	MP14B / MP21B / 2GS12B	2010–15	Yard / genset power
700–724 (1st)	GE	P30CH “Pooch”	1975–76	Purchased new
700–717 (2nd)	GE	P32AC-DM	1995–98	Dual-mode (Empire / GCT third rail)—still relevant mid-2020s
720–724 (GP38-3)	EMD	GP38-3	1967–70 rebuilds	ex-Clinchfield, B&O, C&O, PC, L&N
746–799	various	S2, SW8, GP7/9, SW1000R	1940s–50s	Switchers and Geeps from many predecessors
800–845	GE	P40DC Genesis	1993–94	Purchased new
300–424	Siemens	ALC-42	2020s (order 2018; service from 2022)	125-unit national long-distance Charger program (see current fleet)
State / corridor Charger pools	Siemens	SC-44	2016–	State-supported corridor Chargers (Caltrans, WSDOT, Midwest, etc.)

Detailed unit-by-unit lines for early F7A/FP7, RS3, E8/E9, FL9, and Geep renumberings remain in the site’s Amtrak page archive extract if a full dump is needed for a future expansion of this leaf.

Electric Locomotive Roster

Road numbers	Builder	Model	Date	Notes / history
500–507	GE	E44	1963	ex-Pennsylvania; heritage era
600–610 (E60MA)	GE	E60MA	1975–76 rebuilds	ex-E60CH / E60CP series
620–621	GE	E60	1974–75	ex-E60CP #950, #953
650–664	Bombardier/Alstom	HHP-8	1998–2001	Purchased new; out of regular NEC service after ACS-64 era
600–670	Siemens	ACS-64	2014–16	Purchased new; primary NEC electric mid-2020s
900–929	Altoona (PRR)	GG1	1940–43	ex-PRR group as listed in AR research; all long retired from Amtrak
901–953	EMD	AEM-7 / AEM7-AC	1979–88; rebuilt 2000–02	NEC workhorses for decades; retired from regular service after ACS-64 replacement
950–956	GE	E60CP	1974–75	Steam-generator equipped; purchased new
957–975	GE	E60CH	1975–76	HEP generator; purchased new
2000–2039	Bombardier	Acela Express power car	2000–03	First-generation Acela; being replaced by NextGen Acela
NextGen Acela sets	Alstom	Avelia Liberty lineage	2020s	High-speed trainsets; NEC revenue service from Aug. 2025
Airo power (ALC-42E, etc.)	Siemens	ALC-42E / Airo	2020s	Dual-mode / dual-power for Airo corridor trainsets (Cascades first)

Related profiles: E60 · AEM-7 · ACS-64 · GG1 · Acela · electric locomotives hub.

Self-Propelled Rail Cars & Early Trainsets (Roster Numbers)

Road numbers	Builder	Model	Date	Notes / history
10–20	Budd	RDC-1	1952–53	ex-New Haven
27–28	Budd	RDC Roger Williams	1956	ex-New Haven experimental set
29	Budd	RDC	1957	ex-New Haven #162
30–36	Budd	RDC-2	1950–55	ex-NP, WP, NYC, NH
38–39	Bombardier	LRC-2	1980	Leased
40–43	Budd	RDC-3	1952–56	ex-NP, GN
50–53	UAC/Pullman	TurboTrain	1967	Purchased new
54–57	UAC/Milwaukee	TurboTrain	1968	ex-CN sets
58–69	ANF Industrie	RTG Turboliner	1973–75	Purchased new
150–163	Rohr	RTL Turboliner	1976	Purchased new

Narrative on TurboTrain, Turboliner, ICE, X2000, and Metroliner: unique trainsets.

Other Roster Information (NPCUs)

Road numbers	Builder / type	Date	Notes / history
406	EMD NPCU	1988 rebuild	Rebuilt from Amtrak F40PHR #406
90200, 90208, 90213–15	EMD NPCU	1976 base units	Rebuilt from F40PH #200, #208, #213–215
90218–90225, 90229	EMD NPCU	1976 base	Rebuilt from F40PH #218–225, #229
90230, 90250–90253	EMD NPCU	1977 base	Rebuilt from F40PHR #230, #250–253
90278, 90340	EMD NPCU	1977 / 1980 base	Rebuilt from F40PH #278, #340
90368	EMD NPCU	1981 base	Rebuilt from F40PHR #368
90413	EMD NPCU	1978 base	Rebuilt from GO Transit F40PHR #513

NPCUs (non-powered control units / cab cars from F40 shells) allow push-pull operation without a second locomotive on certain corridor trains and remain part of Amtrak terminal practice into the Charger era.

Amtrak hub
Unique Amtrak trainsets
Diesel locomotives · Electric locomotives
Superliner · Acela · ACS-64

Sources

American-Rails.com long-form Amtrak roster research block (~2019 compilation; heritage and Genesis-era series)
Amtrak Media: ALC-42 introduction and Empire Builder first service; 50-unit order expansion to 125; Airo fleet introduction (2026); NextGen Acela service (2025); delivery progress notes on long-distance Chargers
Siemens Mobility / industry reporting on Charger production and Airo ALC-42E deliveries
See also Resources / Works Cited

Roster leaf updated August 2026: retained historical series tables from the long-form Amtrak page; added mid-2020s current-fleet snapshot (ALC-42 125-unit program, SC-44 corridors, ACS-64 NEC, NextGen Acela, Airo ALC-42E). Active unit counts change as deliveries continue.

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