New York, Susquehanna & Western Diesel Roster: All-Time (1941–2026)

Published: August 27, 2026

The New York, Susquehanna and Western diesel story is two railroads on one reporting mark. From 1941 through the Maidman years it was a New Jersey Alco road—S2s, RS1s, then three new GP18s—that advertised itself in June 1945 as the first U.S. Class I to dieselize (three Russian Decapod 2-10-0s lingered as yard goats until October 1947). After Delaware Otsego took the franchise on September 2, 1980, Walter Rich restocked with secondhand Alco Centuries, then Burlington Northern SD45s and F45s for Sea-Land stacks, then GE B40-8s, and finally a quieter EMD six-motor fleet. Scot Lawrence’s compiled all-time diesel count is about 116 units. That is too many lines to bury inside the NYS&W history article, so this page is the companion roster, the same split American-Rails uses for the New York Central diesel roster.

New York Susquehanna and Western RS3 101 August 7 1984 former Delaware and Hudson 4088 James Leveille

NYS&W RS3 #101—built as Delaware & Hudson #4088 in 1952—August 7, 1984, early Delaware Otsego years. James Leveille photo.

On this page: How to read it · Current power (2025–26) · Original dieselization · Delaware Otsego Alcos · BN six-motors · GE four-axles · Later EMD · Passenger E9s · Notes

How to read this roster

Even-numbered road diesels were MU-equipped; odd numbers were not. That Alco-era habit survived into later secondhand EMD and GE units. A few numbers were reused: the first RS1s #231 and #233 went to the Army in World War II and were replaced by a second pair; C430 #3002’s number was later parked briefly on a tunnel motor that became #3010; GP40 #3040 had been #256 (second). BN six-motors first wore their 6360- and 6500-series numbers, then the 3612–3638 series.

This is an owned and lettered diesel roster, not a photo log of every lessee that ever sat at Little Ferry. Big Dog Leasing U23B BDLX 2209 worked the property; it was never NYS&W 2209. Steam, including Chinese SY 2-8-2 #142, stays on the history page. Treat any single “current” number as a snapshot—confirm it against a recent photograph before you plan around it.

Current power (2025–26)

Heavy road power is four ex-Norfolk Southern SD70M-2s in yellow and black, bought in late 2020 / early 2021 and painted at Butler in 2023. Behind them sit the remaining tunnel-motor family, three SD40-2s (one in 1950s maroon-and-silver heritage paint), two reclassed SD45-2s, and GP40 #3040. SD60s in the 3800 series were roster fixtures in the 2010s; several later went to Western New York & Pennsylvania and New Orleans Public Belt.

Road no.	Model	Heritage (short)	Notes
4060, 4062, 4064, 4066	EMD SD70M-2	Ex-NS (4060 ex-2751; 4064 née 2708; 4066 née 2684)	Current flagship power. #4062 on the June 5, 2026 Binghamton–Callicoon special
3618, 3634	EMD SD45-2	Ex-BN 6500 / 6542 (built as SD45s; reclassed by NYS&W)	#3634 reactivated in the 2020s; America 250 paint
3010, 3014	EMD SD40T-2	3010 née D&RGW 5397 (briefly NYS&W 3002 second); 3014 née SP 8321	#3010 often stored at Binghamton in 2010s–20s lists
3012, 3016	EMD SD32ECO / SD33ECO	née SP SD40T-2 8242 and 8542	Rebuilt 2016. #3016 wrecked at Deposit, N.Y., August 9, 2018, and rebuilt
3018, 3022, 3024	EMD SD40-2	3018 née Southern 3267; 3022 née N&W SD40 1605 (reclassed); 3024 née BN 7200 / NS 3553	#3024 in maroon-and-silver heritage paint since 2023
3040	EMD GP40	née Atlanta & West Point 732; was NYS&W 256 (second)	Utica Branch / F.X. Matt. Sister #3042 scrapped Utica 2014

Original dieselization, 1941–1962

Kidde ordered Alco S2 yard engines and RS1 road-switchers in 1941. The first pair of S2s, #202 and #204, arrived in December 1941. Two 20-ton Whitcombs came from the Army in 1946 for Edgewater; a new GE 45-tonner replaced them in 1958. The last new first-generation power was three GP18s in August 1962—the first Yellowjackets.

Switchers and Edgewater goats

Road no.	Builder / model	Built	Heritage	Disposition
150	Whitcomb 20-ton	1/1942	QMC 2084; US Army 7720; to NYS&W 9/1946	Sold 1960 (Coe Rail). Preserved, Whippany Railway Museum, N.J.
151	Whitcomb 20-ton	1/1942	QMC 2092; US Army 7723; to NYS&W 9/1946	Sold 1960 (Old Dominion Iron & Steel). Later fate uncertain
200	GE 45-ton	1958	Bought new for Edgewater Seatrain	Sold to Quebec Iron & Titanium; reported as QIT #24
202	Alco S2	12/1941 (s/n 69655)	New	First NYS&W diesel, with #204. Scrapped 3/1983
203	Alco S2	4/1942 (s/n 69671)	New (no MU; odd number)	Scrapped 3/1983
204	Alco S2	12/1941	New	To G.R. Silicott for scrap, 7/1966
205	Alco S2	4/1942 (s/n 69672)	New (no MU)	Scrapped 3/1983
206	Alco S2	3/1942 (s/n 69664)	New	Last S2 on the property in 1979. Restored (Bergen-Rockland NRHS, 1985); United Railroad Historical Society of New Jersey
208	Alco S2	3/1942	New	Scrapped 3/1983

Alco RS1 road-switchers

The first pair, #231 and #233, were requisitioned by the Army in World War II, converted to six-axle RSD-1s, and sent overseas. Alco replaced them with a second #231 and #233 in 1943. Arrival of the 1947 RS1s finished steam. Odd numbers never had MU.

Road no.	Built	Builder no. (where known)	Disposition
230	11/1944	71437	Retired 1966; scrapped 3/1983
231 (1st)	1942	69992	To US Army 8000 as RSD-1. Survives: later U.S. Navy / Texas Industries; Museum of the American Railroad, Dallas
233 (1st)	1942	69993	To US Army 8001 as RSD-1; Alaska 1057 / 1085; scrapped 1965–67
231 (2nd)	4/1943	70812	Scrapped 3/1983
233 (2nd)	4/1943	70813	Sold via G.R. Silicott to Genesee & Wyoming; used for parts (frame reused)
232	1/1945	73097	Traded to GE; scrapped 1988
234	1/1945	73098	Scrapped 3/1983
236	1/1945	73099	Scrapped 3/1983. Photographed on suburban service at Hackensack, September 3, 1965 (Roger Puta)
238	3/1945	73568	Yellowjacket by 1985. Traded to GE; scrapped 1988
240	3/1945	73569	Valley Railroad 1983; Tioga Central 1987 (as “TC 240” in NYS&W paint). Scrapped Wellsboro, Pa., August 2014
242	5/1945	73754	Scrapped
244	9/1947	—	To Streigel 244; scrapped
246	9/1947	—	Tennessee RR #6 (7/1963); later Southern / BR&L / Agrico / IMC. Reported preserved at Fort Meade, Fla.
248	10/1947	—	Scrapped
250	10/1947	—	Vermont Railway 250 (11/1965); traded to EMD 9/1966
252	10/1947	75558	Bicentennial unit; later Yellowjacket. Scrapped 1988
254	3/1953	—	Scrapped
256 (1st)	3/1953	79585	Scrapped 1979. Number reused on GP40 #3040

EMD GP18s — the first Yellowjackets

Road no.	Built	Heritage	Disposition
1800, 1802, 1804	8/1962	Bought new	Sold to East Penn Railway, April 2010, as ESPN 1800/1802/1804. Last new first-generation NYS&W power

Delaware Otsego Alcos, 1980s–2000s

Rich put yellow and black on whatever secondhand Alcos Delaware Otsego could buy. The stars were five ex-New York Central C430s—the largest original C430 order, ten units for NYC. Two of the five were wrecked on February 3, 1987. Later came two of the three Alco C636 factory demonstrators (via Morrison-Knudsen and Cartier) and a half-dozen Montreal M636s from the same Cartier fleet.

RS3s and C420s

Road no.	Model	Built	Heritage	Disposition
101	Alco RS3	1952	née D&H 4088; also DO / CNY 101	Scrapped at Cuyahoga Valley Scenic Railroad, 1996
104	Alco RS3	1952	née D&H 4117; Adirondack / R&S 29	Scrapped at Cuyahoga Valley Scenic Railroad, 1996
2000	Alco C420	1966	née L&N 1312; Maryland & Delaware #50	Low short hood. Scrapped at Little Ferry, late 1980s
2002 / 260 / 2010	Alco C420	1964 (s/n 3384-01)	née Long Island 221; V&M 202	One physical unit, three NYS&W numbers. Sold to Buffalo Southern as BSOR 2010

Alco C430s (ex-New York Central 2050-series)

NYS&W	NYC / PC / CR	Alco s/n	Disposition
3000	2050	3494-01	Western New York & Pennsylvania 430 (Livonia, Avon & Lakeville family)
3002 (1st)	2052	3494-03	Wrecked February 3, 1987; scrapped Binghamton 1995
3004	2051	3494-02	Wrecked February 3, 1987; scrapped Binghamton January 1989
3006	2056	3494-07	WNYP 433. On the Oakland, Pa., Sea-Land photograph with #3004
3008	2055	3494-06	Crankshaft failure 1986; scrapped Little Ferry (NIMX) June 1986

C636 demonstrators and MLW M636s (Cartier fleet)

The eight Cartier Alco/MLW six-motors sat at Cohocton, New York, from late 2002, arrived on the Susquehanna 2004–05, and were sold in 2007 to lessors that placed them on WNYP / Delaware-Lackawanna. #3660 and #3662 were two of Alco’s three C636 demonstrators (636-2 and 636-3), later Morrison-Knudsen 5402/5403—not Australian units. The third demo, MK 5401, never wore NYS&W paint.

Road no.	Model	Heritage	Disposition
3660	Alco C636	Alco demo 636-2; MK 5402; Cartier / RRPX 78	Scrapped Cohocton, N.Y., January 2015
3662	Alco C636	Alco demo 636-3; MK 5403; Cartier / SIXX 77	Scrapped Cohocton, N.Y., January 2015
3664	MLW M636	née CN 2300; Cartier / SIXX 41	RRPX 41, leased to WNYP
3666 (also 6366)	MLW M636	née CN 2304; Cartier / SIXX 45	WNYP 636; later New York & Lake Erie
3668	MLW M636	née CN 2312; Cartier / SIXX 47	WNYP 637; to Delaware-Lackawanna
3670 (also 6370 on some lists)	MLW M636	née CN 2302; Cartier / SIXX 43	WNYP / RRPX 43
3672	MLW M636	née Cartier 75	WNYP 638; to Delaware-Lackawanna
3674	MLW M636	née Cartier 85	WNYP 685; to Delaware-Lackawanna

Secondhand EMD switchers

Road no.	Model	Built	Heritage	Disposition
116	EMD NW2	1948	née NYO&W 116; NYC 9501; PC 8684; CR 9264	Restored in NYO&W paint; Arkville, N.Y. (Delaware & Ulster)
120	EMD SW9	1953	Ex-C&O 5091	Sold to AMPI, Dansville, N.Y., September 2006, as shop switcher

Burlington Northern six-motors (Sea-Land era)

Ex-BN SD45s and F45s made the railroad famous on stack trains over Gulf Summit and Starrucca. They first kept (or nearly kept) BN numbers in the 6360 and 6500 series, then took even 3612–3638 numbers. NYS&W later reclassed the two survivors as SD45-2s; they were built as SD45s. Norfolk & Western SD45 #1778 was a parts unit and never ran in Susquehanna service.

SD45s (and the two that remain)

Later no.	Early NYS&W / BN no.	BN heritage	Disposition
— (parts)	6360	BN 6475 (would have been 3610)	Parts unit; scrapped Utica 1992. On the 1986 Oakland photograph
3612	6362	BN 6480	Scrapped Utica 2004
3614	6364	BN (s/n 36375)	Unrepairable at Dansville; off roster 10/2007; scrapped
—	6366	BN 6489 (would have been 3616)	Montana Rail Link 362; scrapped 2007
3618	6500	BN 6500	Still on NYS&W, reclassed SD45-2. Rebuilt Dansville 2006
3620	6503	BN 6503	MRL 365; scrapped 2007
3622	6509	BN 6509	MRL 364; scrapped 2007
3624	6513	BN 6513	MRL 360; scrapped 2007
3626	6361	BN 6514	MRL 359; scrapped 2007
—	6515	BN 6515 (would have been 3628)	MRL 366; scrapped 2006
3630	6521	BN 6521	MRL 363 / ICE 363; scrapped 2007
3632	6525	BN 6525	MRL 361; scrapped 2007
3634	6542	BN 6542	Still on NYS&W, reclassed SD45-2. America 250 paint; June 5, 2026 special
parts	1778	née N&W 1778	Parts only; never operated as NYS&W

F45s

Later no.	BN / early no.	Disposition
3636	BN 6640 (also listed as NYS&W 6640)	Scrapped Utica, September 2014
3638	BN 6644; also NYS&W 6370 / 6644	Montana Rail Link 390. Sold 2014; preservation reported as a possibility, not confirmed here
—	BN 6635, 6642 (photographed in NYS&W service on some lists)	Same BN F45 order (1971). Treat extra 6600-series identities as the same small F45 fleet, not extra locomotives

GE four-axles

U23B and B23-7

Road no.	Model	Heritage	Disposition
2300	GE B23-7	née L&N 5127; SBD 5127; CSX 3126; P&W 2214	Sold to Finger Lakes (FGLK 2300), October 2011
2302	GE U23B	née Conrail 2794; P&W / BDLX 2208	Sold to Lehigh Railway (LRWY 2302), December 2008
2304	GE U23B	née Conrail 2796; P&W 2207	Sold to Lehigh Railway (LRWY 2304), December 2008

BDLX 2209 (Big Dog Leasing) ran on the Susquehanna as a lessee. It never carried a NYS&W road number.

B40-8s, 4002–4048

Twenty-four Dash 8-40Bs were built new in Yellowjacket paint. The first four (#4002–4008) stayed into the 2000s and went to Providence & Worcester in 2004–05. The twenty units #4010–4048 were financed with CSX help in 1989 for stack trains (including the period when NYS&W was operating D&H). When CP took the D&H and the stacks faded, those twenty returned to CSX around 1991 as 5930-series B40-8s; several were later downgraded as CSX B20-8s.

NYS&W	Built	Went to
4002	1988	P&W 4004 (sold 2004)
4004	1988	P&W 4001 (sold 2004)
4006	1988	P&W 4003 (sold September 2005; last Yellowjacket B40-8 on NYS&W)
4008	1988	P&W 4002 (sold February 2005)
4010–4048 (even)	1989	CSX 5930–5949 series (not a 1:1 sequential map). CSX-financed; on the property only about 1989–91

Later EMD four- and six-axle power

GP20, GP38, GP40

Road no.	Model	Heritage	Disposition
2012	EMD GP38	née B&O 3800	Sold April 2010; North Shore (NSHR) 2012, later NSHR 2017
2062, 2064, 2066	EMD GP20	Santa Fe via Toledo, Peoria & Western (2062 née ATSF 1140; 2064 née 1168; 2066 née 1151)	Scrapped Binghamton, July 2014. The previous American-Rails NYS&W table still listed them “for sale”
3040	EMD GP40	née A&WP 732; SBD / CSXT 6652; CRL 256; NYS&W 256 (second)	Current. Utica Branch
3042	EMD GP40	née N&W 1355 (high hood; received a low nose from SD45 3612)	Scrapped Utica, September 2014

Tunnel motors, SD40s, and SD40-2s

Road no.	Model as used	Heritage	Disposition
3010	SD40T-2 (NYS&W also classed SD40-2)	née D&RGW 5397; SP 5397; UP 8590. Briefly numbered 3002 (second)	Current; stored Binghamton in many 2010s–20s lists. Still a tunnel-motor carbody
3012	SD32ECO / SD33ECO	née SP SD40T-2 8242 (4/1980)	Current. Rebuilt 2016
3014	SD40T-2	née SP 8321	Current. Rebuilt / repainted Dansville, March 2007
3016	SD32ECO / SD33ECO	née SP 8542	Current. Wrecked Deposit, N.Y., August 9, 2018; rebuilt
3018	SD40-2	née Southern 3267 (high hood); NS / BDLX 3267	Current. Leased 2002–03, bought 2004; nose chopped, Dansville 2006
3020	SD40	née N&W 1603 (high hood); NS / BDLX 1603	Scrapped Utica, September 2014
3022	SD40-2 (reclassed; SD40 carbody)	née N&W 1605; NS / BDLX 1605	Current. Nose chopped, Dansville 2006
3024	SD40-2	née BN 7200 (10/1979, s/n A3802); NS 3553. On property from about 2020	Current. Maroon-and-silver heritage paint, 2023

SD60s (2012–)

Six GMTX / Oakway SD60s arrived in 2012. Two were in the August 9, 2018 Deposit wreck with #3016. By 2025 at least #3802 and #3810 wore WNYP marks; #3804 and #3808 have been listed sold to New Orleans Public Belt.

Road no.	Heritage	Notes
3800	GMTX 9016; née EMDX / Oakway 9016 (s/n 867150-17)	Wrecked Deposit, August 9, 2018
3802	GMTX 9044; née EMDX 9044	Sold to WNYP (photographed with WNYP marks by June 2025)
3804	GMTX / Oakway 9061	Listed sold to New Orleans Public Belt
3806	GMTX 9067; née EMDX 9067	Wrecked Deposit, August 9, 2018
3808	GMTX / Oakway 9082	Listed sold to New Orleans Public Belt
3810	GMTX 9094; née EMDX 9094	Sold to WNYP (photographed with WNYP marks by June 2025)

SD70M (built new) and SD70M-2 (ex-NS)

Road no.	Model	Built / serial	Disposition
4050	EMD SD70M	New 1995	Sold to Norfolk Southern as NS 2797, September 2014
4052	EMD SD70M	New 1995	NS 2798, September 2014
4054	EMD SD70M	New 1995	NS 2799, September 2014
4060	EMD SD70M-2	s/n 20056710-51; ex-NS 2751	Current. Arrived late 2020; Yellowjacket 2023
4062	EMD SD70M-2	s/n 20056710-74; ex-NS	Current. June 5, 2026 Binghamton–Callicoon special
4064	EMD SD70M-2	s/n 20056710-8; née NS 2708 (2/2006)	Current. First of the four painted Yellowjacket, March 2023
4066	EMD SD70M-2	s/n 20046650-36; née NS 2684	Current

Passenger E9s

Road no.	Model	Heritage	Disposition
2400	EMD E9 (rebuilt)	née CB&Q 9991; BN 9921	Sold to Larry’s Truck & Electric, 2006; later Cape Cod Central / Iowa Pacific, Hyannis, Mass.
2402	EMD E9 (rebuilt)	née CB&Q 9985; BN 9915	Same sale path as #2400, 2006

The 1940 ACF motor cars and 1950 Budd RDCs were passenger cars, not locomotives. They are sketched on the history page, not here.

Notes and caveats

Even = MU. Odd-numbered diesels were not multiple-unit equipped in the original scheme. Spotters still use that to read a photograph.
116 is a compiled count, not a builder total. Lawrence’s all-time diesel list is the best single compilation in print/online for this railroad. Rebuilds (SD40T-2 to SD32ECO) and renumbers (2002/260/2010; 256 second; 3002 second) will make any two spreadsheets disagree by a few rows if you double-count.
C636 vs M636. #3660 and #3662 were Schenectady C636 demonstrators. #3664–3674 were Montreal M636s. Do not add them into the Alco C636 production total of 34.
No NYS&W 2209. Photographs labeled that way are BDLX 2209.
The live American-Rails roster (through 2024) still showed GP20s for sale, a B23-7, SD40s, and stored SD70Ms. That was a 2000s–2010s snapshot, not the 2026 railroad.

Sources

Scot Lawrence, “Susquehanna Railway Roster and Survivors” (all-time diesel list, ~116 units; RS1/S2/C430/BN/B40-8 dispositions; notes on 231/233, BDLX 2209, Cartier timeline)
The Diesel Shop, NYS&W locomotive roster and the railroad’s own November 1990 locomotive summary (Ted Grumbine collection)
Railroad Picture Archives, NYSW model lists (serials for S2, RS1, C420, C430, SD40 family, SD60, SD70M-2; dispositions as labeled)
Prime Mover Decals NYS&W diesel notes (original S2/RS1/Whitcomb build dates and 1960s–80s dispositions)
Railfan & Railroad, M.T. Burkhart, May 11, 2023 (SD70M-2 Yellowjacket; #3024 maroon-and-silver heritage)
Trains News Wire, Bill Stephens, June 6, 2026 (Binghamton–Callicoon special; #3634 and #4062)
WNYP roster, The Diesel Shop (ex-NYS&W C430s, M636s, SD60s 3802/3810)

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