Lehigh Valley Diesel Roster: All-Time

Published: September 21, 2026

The Lehigh Valley dieselized the way a railroad dieselizes when it has decided, late, to be done with steam. Four two-unit FTs arrived in January 1945 as helpers. Then, between 1948 and 1951, Sayre took delivery of F3s, F7s, FA-1s, FA-2s, fourteen PA-1s, Baldwin road-switchers and switchers, and a handful of Alco RS-2s and RS-3s. On September 14, 1951, Mikado 432 dropped her fire at Delano. The second generation was smaller and later: four RS-11s, twelve C-420s, seventeen C-628s, two GP9s, four GP18s, four GP38ACs, twelve GP38-2s, and twelve U23Bs. Several of those last units never wore a Conrail number. The Delaware & Hudson took the C-420s and the GP38-2s on the first day of Conrail.

The table is every diesel-electric the Valley owned or numbered, one row per builder order, with serial and order in their own columns. Gas-electric cars and Mack side-arm pushers are in the narrative.

Lehigh Valley GP38-2s 316 and 319 at the Sayre Pennsylvania terminal circa 1974

GP38-2s #316 and #319 at Sayre, Pennsylvania, about 1974. Warren Calloway photo. Order 7386, November 1972. With the U23Bs of 1974, this was the last new power the Valley bought. Both went to the Delaware & Hudson on April 1, 1976, as 7316 and 7319.

On this page: At a glance · Boxcabs and the first switchers · FTs, then the 1948 flood · Alco cabs, then Centuries · Baldwin · GP38s, U23Bs, and the end · All-time roster

At a glance

Item	Detail
Railroad	Lehigh Valley Railroad. Mark LV. Company Lehigh Valley
This roster	All-time diesel-electrics. Serial and order are separate columns. One row per builder batch
First diesel-electrics	Alco boxcabs 99 and 100, January 1926. EMC 60-ton boxcabs 115–116 (later 75–76), June 1930
First road freight	FT A-B sets 500–503 / 500B–503B, January 1945, orders E625A and E626B
Passenger	Fourteen PA-1s, 601–614, April–May 1948, order 20220. A PA was on the property for test as early as June 26, 1946. No PB units
Paint	Cornell Red. C-628s 625–632 delivered white and black; fans called them Snowbirds. Many were repainted red with a yellow stripe in the 1970s
Last steam	September 14, 1951. Mikado 432, Delano
Last new power	U23B 501–512, November 1974, GE serials 40098–40109. GP38-2s 314–325 had come in November 1972
April 1, 1976	C-420s 404–415 and GP38-2s 314–325 to the Delaware & Hudson. Most of the rest that still ran were conveyed to Conrail

Unit identities follow EMD order records, The Diesel Shop’s Lehigh Valley list, and the Alco FA-2 production roster. Information compiled September 21, 2026.

Boxcabs, a 300-horsepower demonstrator, and the 44-tonners

The Valley’s first internal-combustion locomotives were not the FTs. Alco boxcab 100, construction number 65981, was completed in January 1926. Sister 99, Alco 66680, was the same month and had been Utah Copper 600. In June 1930 EMC delivered two 60-ton boxcabs, serials 463 and 464, numbered 115 and 116 and later 75 and 76. Two 300-horsepower Alco end-cab units, 102 and 103, arrived in 1931 with no catalog model name; they had been demonstrators 301 and 303. HH600 105, May 1932, was demonstrator 601. An HH660, September 1939, serial 69078, came off Alco’s own 1900 and took the number 116 after the boxcab had moved.

Brill and EMC gas-electric cars, numbered from the single digits into the 30s, and a few Mack side-arm pushers, worked branches, shop tracks, and light passenger jobs from the early 1920s. They were gasoline, not diesel-electric, and they are not in the table.

The three GE 44-tonners, 60–62, serials 15033–15035, order 281-3043, were completed in December 1941, February 1942, and August 1942. They were the wartime small-power exception on a railroad that otherwise waited out the war with steam and a yard full of NW1s, S-2s, and Baldwin VO-1000s.

Yard diesels before the war were conventional. EMC SW switchers 106–111 came in 1937–38. NW1s 120–130 followed in 1937–38. SW1s started with 112 in April 1939. Alco S-2s 150–165 were a wartime and immediate postwar group, sixteen engines, 1942–49, and two S-4s, 166 and 167, closed Alco yard buying in May 1951. Baldwin VO-1000s 135–141 were 1944 engines. The DS-4-4-1000s and S-12s came at the end of steam.

January 1945, then everything at once

EMD’s first road freight sets were FT A-units 500–503, serials 2695–2698, order E625A, and B-units 500B–503B, serials 2699–2702, order E626B, all January 1945. Drury remembered them as helper engines, which is what four A-B pairs were on a railroad that still had Mountain Top and the Wilkes-Barre grades. Sayre later renumbered them into the 501–507 series so the freight-cab numbers could be reused. The as-built numbers are the ones in the table.

Lehigh Valley F7s led by 570 at South Plainfield New Jersey circa 1960

F7s led by #570 at South Plainfield, New Jersey, about 1960. Meyer Pearlman photo. American-Rails.com collection. 570 is from the January 1951 A-unit order 3065A, serials 12483–12486, numbered 568–574 even.

The freight cab flood of 1948 is order E1143. Ten F3As, 510–528 even, serials 8167–8176, and ten F3Bs, 511–529 odd, serials 8177–8186, October and November 1948. Sayre later brought a number of them up toward F7 standard. They were built as F3s, and that is how the table lists them. True F7s came in two batches: February 1950, four A-units 560–566 even and four B-units 561–567 odd, orders 6009A and 6009B; and January 1951, four A-units 568–574 even, order 3065A, and only two B-units, 569 and 571, order 3055B. There was no 573.

Passenger cabs were Alco’s. Fourteen PA-1s, 601–614, order 20220, April and May 1948: 601–606 are serials 75458–75463, and 607–614 are 75775–75782. The Valley tested a PA on June 26, 1946, before the production engines, and it did not buy a B-unit. Cornell Red on a PA, with the black pinstripe the diesel page’s older captions compared to a GG1’s whiskers, was the passenger face of the railroad from 1948 until the Maple Leaf ended on February 4, 1961.

Lehigh Valley PA-1 604 stopped at Bethlehem Union Station in the 1950s

PA-1 #604 at Bethlehem Union Station in the 1950s. American-Rails.com collection. Serial 75461, April 1948, the fourth of the first six.

Switchers filled the same years. NW2s 180–186 in 1949, SW7s 220–224 in 1950, SW8s 250–276 in 1950–52 (twenty-seven engines, the last two built at Cleveland), and SW9s 280–292 in May 1951. A second life for the prewar NW1s and SWs was the SW900 trade-in program: EMD rebuilt the old carbodies into SW900s and reused the serial with a “:2” suffix. Those are separate rows. A few SW900s, notably 121 and 123, were new serials rather than trade-ins. Two NW1s, 128 and 129, came back as SW8s in the fall of 1953, order 7509, instead of SW900s.

FA-2s, four RS-11s, and the Snowbirds

Alco’s freight cabs matched the F3s in timing and not in longevity. Ten FA-1s, 530–548 even, serials 76261–76270, and ten FB-1s, 531–549 odd, serials 76287–76296, October 1948. The FA-2s are a smaller group and an easy one to miscount. Five A-units, 580–588 even, serials 78276–78280, November and December 1950; 590, serial 78351, December 1950; and 592 and 594, serials 78624 and 78625, April 1951. That is eight A-units, which is what the production roster shows, not a solid 580–594. B-units were four: 581 and 583, serials 78283–78284, and 585 and 587, serials 78657–78658. FA-2 582 is serial 78277, November 1950. It was traded back to Alco in 1965–66 toward the C-628 order. It was not the last FA the builder produced. Louisville & Nashville was still taking FA-2s in 1956.

Lehigh Valley FA-2 594 at Niagara Falls New York on August 22 1964

FA-2 #594 at Niagara Falls, New York, on August 22, 1964. Harry Juday photo. American-Rails.com collection. Serial 78625, April 1951, the last new FA the Valley bought.

Road-switchers were never the Valley’s first choice, and then they were the only choice. Original RS-2s were 210–211 (March 1949, serials 76655–76656, order 20373) and 212–214 (early 1950, serials 77919–77921, order 20480). RS-3s 215 and 216, serials 78367–78368, order 20557, followed in the fall of 1950. Two more RS-2s, 217 and 218, were Chesapeake & Ohio 5500 and 5501, serials 76826–76827, order 20430, built in June 1949. RS-3 219 was Tennessee Central 251, serial 78362. In the 1970s three ex-Pennsylvania RS-3s took the numbers 210, 211, and 212 after the original RS-2s had gone to Penn Central. Those second uses are their own rows. So are six ex-Pennsylvania RS-11s numbered in the 7640s, which wore LV numbers without ever having been Valley orders of 1957.

Lehigh Valley RS3 215 and RS2 213 lead an eastbound freight across the Chenango River at Binghamton New York in February 1971

RS-3 #215 and RS-2 #213 cross the Chenango River at Binghamton, New York, in February 1971, on a bridge over the Erie Lackawanna. Photographer not listed. Author’s collection.

The Century units were the Alco the Valley is remembered for. Four RS-11s, 400–403, serials 83537–83540, order 21128, March 1960, were the modest start. Twelve C-420s, 404–415, serials 3385-01 through 3385-12, order 21217, October–December 1964, were the useful ones. Conrail did not keep them. They went to the Delaware & Hudson on April 1, 1976, still numbered 404–415.

C-628s came in three groups. Seven, 625–631, serials 3427-01 through 3427-07, order 21241, November 1965, were delivered in white and black. One more, 632, serial 3476-01, order 21283, followed in January 1967 and was painted the same way. Nine ex-Monon C-628s, 633–641, serials 84903–84911, order 21292, had been built in March 1964 as Monon 400–408 and joined the Valley in December 1967. The white engines were the Snowbirds. A number of them, and most of the ex-Monon units, were later repainted Cornell Red with a yellow stripe. Conrail assigned 6721–6728 to 625–632. The ex-Monon engines were assigned 6729–6737; 633 and 636 were retired before those numbers were applied.

Lehigh Valley C628s 635 633 and 641 with a westbound freight at East Penn Junction Allentown Pennsylvania in April 1973

C-628s #635, #633, and #641 westbound at East Penn Junction, Allentown, in April 1973. Richard Wallin photo. 635 and 633 are ex-Monon 402 and 400, built in March 1964. 641 is ex-Monon 408.

Lehigh Valley Snowbird C628s and a Delaware and Hudson C628 departing Binghamton New York in March 1973

Snowbird C-628s and a Delaware & Hudson C-628 pass the depot leaving the yard at Binghamton, New York, in March 1973. Tom Trencansky photo. White and black was the as-delivered paint on 625–632.

One road Baldwin, and a yard full of them

Baldwin’s only road locomotive was DRS-4-4-1500 200, serial 73651, November 1948. It spent its life as the odd unit in a fleet of Alcos and EMDs and was still around to be traded in when the GP38s were ordered. The yard Baldwins were more numerous. Five VO-1000s, 135–139, serials 70843–70847, and two more, 140 and 141, serials 74234–74235, all April 1944. DS-4-4-1000s 142 and 143, serials 74598–74599, June 1949, and 144–148, serials 74627–74631, January and February 1950. Fourteen S-12s, 230–243, in the fall of 1950, serials scattered through 74952–74965 and not in road-number order: 240–243 are the lower serials 74956–74959. Engine 148 was later renumbered 142, and 236 was later 242.

Two GP9s, twelve GP38-2s, twelve U23Bs

EMD’s second generation on the Valley was a short list with high serials. GP9s 300 and 301, serials 25434 and 25435, order 7577, October 1959. GP18s 302–305, four units, not two, serials 25890–25893, order 7587, May and June 1960, high short hoods. They became Conrail 7476–7477 and 7496–7499.

The late road power was bought because the F units were worn out and the railroad was already in, or about to be in, bankruptcy. GP38ACs 310–313, serials 7368-1 through 7368-4, order 7368, December 1971, became Conrail 7656–7659 and later Norfolk Southern. GP38-2s 314–325, serials 7386-1 through 7386-12, order 7386, November 1972, did not. They went to the Delaware & Hudson as 7314–7325. Two of them, 316 and 321, were later scrapped after wrecks on the D&H. Several of the others ran for decades under Guilford, Delaware & Hudson, and Canadian Pacific numbers.

Lehigh Valley GP38AC 310 brings Delaware and Hudson RF-16s and their train into Sayre Pennsylvania in August 1975

GP38AC #310 brings the Delaware & Hudson’s two RF-16s and their train into Sayre in August 1975. The freight had come off the Erie Lackawanna at the west end of the yard and had to run around, which is why the caboose is on the head end. Jerry Custer photo.

The sharks’ own story is the D&H 1205 and 1216 page.

General Electric’s only road order was twelve U23Bs, 501–512, serials 40098–40109, November 1974. They were delivered to a railroad eighteen months from Conrail and became Conrail 2777–2788. They were the last new locomotives lettered LV.

Taken together, the diesel roster is a yard full of EMD and Alco switchers, two generations of four-motor freight cabs, the C-628s as the only six-motor road power, and a short, late list of road-switchers.

All-time roster

Owned and lettered Lehigh Valley diesel-electrics, including secondhand units that took LV numbers. One row per builder order. Later numbers, Conrail and Delaware & Hudson identities, and trade-in rebuilds are in the notes. Where a builder did not use a separate order code, that column is a dash. EMD trade-in rebuilds keep the “:2” serial.

Boxcabs and early Alco yard units

Numbers	Model	Builder	Serial	Order	Built	Notes
99	Boxcab	Alco	66680	—	1/1926	Nee Utah Copper 600 (GE electrical 10028)
100	Boxcab	Alco	65981	—	1/1926
102, 103	300 hp end-cab	Alco	68593, 68602	—	7/1931, 12/1931	No catalog model. Ex-demonstrators 301 and 303
105	HH600	Alco	68607	—	5/1932	Ex-demonstrator 601
116 (2nd)	HH660	Alco	69078	—	9/1939	Ex-Alco 1900. Number freed when boxcab 116 became 76
117	S-1	Alco	77998	—	6/1950
150–154	S-2	Alco	69952–69956	—	9/1942–10/1942
155–159	S-2	Alco	69878–69882	—	11/1943
160, 161	S-2	Alco	70067, 70068	—	11/1943
162–164	S-2	Alco	70069–70071	—	3/1944–5/1944
165	S-2	Alco	76764	—	5/1949
166, 167	S-4	Alco	78725, —	—	5/1951	To Steelton & Highspire 66 and 67. Second construction number not confirmed in the compiled list
115, 116	60-ton boxcab	EMC	463, 464	—	6/1930	Later 75, 76

EMD switchers

Numbers	Model	Builder	Serial	Order	Built	Notes
106, 107	SW	EMC	695, 696	E179	8/1937	106 later to Westinghouse 76
108	SW	EMC	748	E207	7/1938
109, 110	SW	EMC	752, 753	E215	11/1938
111	SW	EMC	754	E223	12/1938
112	SW1	EMC	874	E237	4/1939
113–115	SW1	EMC	1020–1022	E295	2/1940	115 to CR 8419
118, 119	SW1	EMD	12212, 12213	4067	12/1950	118 to CR 8422
120, 121	NW1	EMC	773, 774	E180	12/1937	Rebuilt as SW900s; see below
122, 123	NW1	EMC	785, 786	E180	4/1938	Rebuilt as SW900s
124, 125	NW1	EMC	783, 784	E197	1938	Rebuilt as SW900s
126, 127	NW1	EMC	781, 782	E198	1938	Rebuilt as SW900s
128	NW1	EMC	787	E208	1938	Rebuilt as SW8 128 (2nd)
129, 130	NW1	EMC	830, 831	E211	8/1938–9/1938	129 rebuilt as SW8; 130 as SW900
106 (2nd)	SW900	EMD	695:2	—	10/1956	Trade-in rebuild of SW 106
107 (2nd)	SW900	EMD	24482	—	3/1958	New serial, not a :2 trade
110 (2nd)	SW900	EMD	23540	—	3/1957	Later Kaiser Steel 1028
120 (2nd)	SW900	EMD	773:2	7523	9/1955	Trade-in of NW1 120
121 (2nd)	SW900	EMD	25917	7590	6/1960	New serial. To CR 8648
122 (2nd)	SW900	EMD	785:2	7531	9/1956	To CR 8649
123 (2nd)	SW900	EMD	24484	7564	6/1958	To CR 8650
124 (2nd)	SW900	EMD	783:2	7523	10/1955	To CR 8651
125 (2nd)	SW900	EMD	23539	7545	8/1957	To CR 8652
126 (2nd)	SW900	EMD	781:2	7531	7/1956	To CR 8653
127 (2nd)	SW900	EMD	782:2	7531	5/1956	To CR 8654
130 (2nd)	SW900	EMD	23538	7545	5/1957	To CR 8657
128 (2nd), 129 (2nd)	SW8	EMD	787:2, 830:2	7509	10/1953–11/1953	Trade-in rebuilds of NW1s 128 and 129. To CR 8655, 8656
180, 181	NW2	EMD	8710, 8711	E1210	6/1949	To CR 9242, 9243
182, 183	NW2	EMD	8708, 8709	E1210	6/1949	To CR 9244, 9245
184–186	NW2	EMD	9142–9144	E1252	9/1949	184 and 185 to CR 9246, 9247
220	SW7	EMD	11185	6076	1/1950	To CR 8875
221–224	SW7	EMD	12467–12470	4068	12/1950	To CR 8876–8879
250–255	SW8	EMD	13151–13156	6185	12/1950	To CR 8670–8675
256–261	SW8	EMD	14027–14032	4092	8/1951–9/1951	To CR 8664–8669
262, 263	SW8	EMD	14056, 14057	4104	6/1951, 9/1951	To CR 8676, 8677
264–273	SW8	EMD	14489–14498	4104	9/1951	To CR 8678–8687
274	SW8	EMD	16974	6430	12/1952	To CR 8688
275, 276	SW8	EMD	16972, 16973	6409	12/1952	Built at Cleveland. To CR 8689, 8690
280–285	SW9	EMD	14043–14048	4103	5/1951	To CR 8931–8936
286–292	SW9	EMD	14499–14505	4120	5/1951	286 and 287 to CR 8937, 8938

EMD road units

Numbers	Model	Builder	Serial	Order	Built	Notes
500–503	FTA	EMD	2695–2698	E625A	1/1945	Helpers, as bought. Later renumbered into 501–507
500B–503B	FTB	EMD	2699–2702	E626B	1/1945	Later renumbered; 500B became 501 (2nd)
510–528 even	F3A	EMD	8167–8176	E1143A	10/1948–11/1948	Later shopped toward F7 standard. Built as F3A
511–529 odd	F3B	EMD	8177–8186	E1143B	10/1948–11/1948	Same shopping program. Built as F3B
560–566 even	F7A	EMD	9434–9437	6009A	2/1950
561–567 odd	F7B	EMD	9438–9441	6009B	2/1950
568–574 even	F7A	EMD	12483–12486	3065A	1/1951	Photo: 570 at South Plainfield
569, 571	F7B	EMD	12487, 12488	3055B	1/1951	No 573
300, 301	GP9	EMD	25434, 25435	7577	10/1959	To CR 7476, 7477
302–305	GP18	EMD	25890–25893	7587	5/1960–6/1960	Four units, high short hood. To CR 7496–7499
310–313	GP38AC	EMD	7368-1 to 7368-4	7368	12/1971	To CR 7656–7659, later Norfolk Southern. Photo: 310 at Sayre with D&H sharks, August 1975
314–325	GP38-2	EMD	7386-1 to 7386-12	7386	11/1972	To D&H 7314–7325 on April 1, 1976, not kept as Conrail. 316 and 321 later scrapped after D&H wrecks. Photo: 316 and 319 at Sayre

Alco road-switchers, cabs, and Centuries

Numbers	Model	Builder	Serial	Order	Built	Notes
210, 211	RS-2	Alco	76655, 76656	20373	3/1949	To PC 5461 (2nd) and 5569 (2nd)
212–214	RS-2	Alco	77919–77921	20480	2/1950–3/1950	212 to PC 5401 (2nd). 213 and 214 to CR 5200, 5201
215, 216	RS-3	Alco	78367, 78368	20557	9/1950–11/1950	To CR 5489, 5490
217, 218	RS-2	Alco	76826, 76827	20430	6/1949	Ex-C&O 5500, 5501. To CR 5202, 5203
219	RS-3	Alco	78362	20563	10/1950	Ex-Tennessee Central 251. To CR 5491
210 (2nd)	RS-3	Alco	—	—	—	Ex-PC 5461. Assigned CR 5486 and retired before the number was applied
211 (2nd)	RS-3	Alco	80580	20899	12/1953	Nee PRR 8445, ex-PC 5569. To CR 9920, later Delaware-Lackawanna 211
212 (2nd)	RS-3	Alco	81802	20989	12/1955	Nee PRR 8601, ex-PC 5401. To CR 5488
400–403	RS-11	Alco	83537–83540	21128	3/1960	To CR 7609–7612
404–415	C-420	Alco	3385-01 to 3385-12	21217	10/1964–12/1964	To D&H 404–415 on April 1, 1976
530–548 even	FA-1	Alco	76261–76270	—	10/1948	Ten A-units
531–549 odd	FB-1	Alco	76287–76296	—	10/1948	Ten B-units. Built as FB-1, not FB-2
580–588 even	FA-2	Alco	78276–78280	—	11/1950–12/1950	Five A-units. 582 is serial 78277, traded to Alco 1965–66
590	FA-2	Alco	78351	—	12/1950
592, 594	FA-2	Alco	78624, 78625	—	4/1951	Photo: 594 at Niagara Falls, August 22, 1964
581, 583	FB-2	Alco	78283, 78284	—	11/1950–12/1950
585, 587	FB-2	Alco	78657, 78658	—	1951
601–606	PA-1	Alco	75458–75463	20220	4/1948	No PB units. Photo: 604 at Bethlehem
607–614	PA-1	Alco	75775–75782	20220	4/1948–5/1948
625–631	C-628	Alco	3427-01 to 3427-07	21241	11/1965	Delivered white and black (Snowbirds). To CR 6721–6727
632	C-628	Alco	3476-01	21283	1/1967	Snowbird. To CR 6728
633–641	C-628	Alco	84903–84911	21292	3/1964	Ex-Monon 400–408, to LV 12/1967. Assigned CR 6729–6737; 633 and 636 retired before renumbering. Photo: 635, 633, 641 at Allentown, April 1973
7640, 7641	RS-11	Alco	82646, 82647	—	11/1957	Nee PRR 8640, 8641. To CR 1023 and 1016
7642–7644	RS-11	Alco	82817–82819	—	11/1957	Nee PRR 8642–8644
7648	RS-11	Alco	—	—	11/1957	Nee PRR 8648. To CR 1013. Serial conflicts in the compiled lists and is not printed

Baldwin

Numbers	Model	Builder	Serial	Order	Built	Notes
200	DRS-4-4-1500	Baldwin	73651	—	11/1948	Only Baldwin road unit. Later traded in
135–139	VO-1000	Baldwin	70843–70847	—	4/1944
140, 141	VO-1000	Baldwin	74234, 74235	—	4/1944
142, 143	DS-4-4-1000	Baldwin	74598, 74599	—	6/1949
144–148	DS-4-4-1000	Baldwin	74627–74631	—	1/1950–2/1950	148 later renumbered 142 (2nd)
230–233	S-12	Baldwin	74952–74955	—	9/1950
234–239	S-12	Baldwin	74960–74965	—	9/1950–10/1950	236 later renumbered 242 (2nd)
240–243	S-12	Baldwin	74956–74959	—	10/1950	Serials are below 234–239

General Electric

Numbers	Model	Builder	Serial	Order	Built	Notes
60–62	44-ton	GE	15033–15035	281-3043	12/1941, 2/1942, 8/1942	One each date, in number order
501–512	U23B	GE	40098–40109	—	11/1974	Last new LV locomotives. To CR 2777–2788

Sources

EMD order list for the Lehigh Valley, trainweb.us/emdloco/lv.htm, and the order page for 7386 (GP38-2 314–325, serials 7386-1 through 7386-12, November 1972).
The Diesel Shop, Lehigh Valley diesel locomotives, revised September 6, 2024. Data from Andre Kristopans and Bob Van Derveer; sources cited there include Extra 2200 South (September/October 1969 and July–September 1982) and Robert J. Yanosey.
The Diesel Shop Alco FA-2/FB-2 production roster (John Komanesky): LV 580–588 even, 590, 592 and 594.
The Diesel Shop GE 44-ton production roster: LV 60–62, serials 15033–15035, order 281-3043.
George H. Drury, Guide to North American Steam Locomotives, revised edition, on the 1945 FTs and dieselization by September 14, 1951.

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