| No. | Model | Railroad Line | Location | Status | Builder Info | Notes |
|---|---|---|---|---|---|---|
| 4 | S-1 | Abilene & Smoky Valley (Hutchinson & Northern) | Abilene & Smoky Valley Railroad, Abilene, KS | operational | Alco, 06/1945 | |
| 5017 | RS-36 | D&H | Delaware & Ulter Railroad, Arkville, NY | operational | Alco, 01/1963 | |
| 406 (4112) | RS-3 | WNYP (D&H) | Arcade & Attica Railroad, Attica, NY | operational | Alco, 09/1952 | Tioga Central 506. From the Western New York & Pennsylvania railroad in Olean, NY. |
| 442 (842) | RSD-15 | Austin & Texas Central (AT&SF) | Austin Steam Train Association, Austin, TX | operational | Alco, 06/1960 | |
| 142 (1701) | RS-3 | M-K-T | Midland Railway Historical Association, Baldwin City, KS | operational | Alco, 06/1951 | Heavily modified |
| 244 | RS-1 | M&StL | Boone & Scenic Valley Railroad, Boone, IA | operational | Alco, 02/1944 | |
| 405 | RS-1 | GMRC (Rutland) | Green Mountain Railroad, Burlington, VT | operational | Alco, 11/1951 | |
| 9935 (910) | RS-3 | Housatonic (DL&W) | Housatonic Railroad, Caanan, CT | operational | Alco, 04/1951 | |
| 2098 (103) | RS-2 | AT&SF (Kennecott Copper) | Pacific Southwest Railway Museum, Campo, CA | operational | Alco, 11/1949 | |
| 8652 | RSD-1 | NARM (US Army) | North Alabama Railroad Museum, Chase, AL | operational | Alco, 01/1945 | |
| 484 | S-2 | NARM (Lackawanna) | North Alabama Railroad Museum, Chase, AL | operational | Alco, 1949 | |
| 213 | S-2 | NARM (Manufacturers) | North Alabama Railroad Museum, Chase, AL | operational | Alco, 1941 | |
| 8677 | RSD-1 | US Army | TVRM Soule Shops, Chattanooga, TN | operational | Alco, 02/1945 | |
| 123 (1109) | RS-3 | Oliver Iron Mining | Midwest Railway Preservation Society, Cleveland, OH | operational | Alco, 06/1950 | |
| 101 | RS-1 | Duluth, South Shore & Atlantic | Lake Superior Railroad Museum, Duluth, MN | operational | Alco, 1945 | |
| 5010 | RS-11 | Buffalo Southern (D&H) | Buffalo Southern, Eden, NY | operational | Alco, 05/1961 | |
| 201 | RSD-4 | Kennecott Copper | Nevada Northern Railway Museum, Ely, NV | operational | Alco, 05/1951 | From the Northwest Railway Museum, Snoqualmie, WA. |
| 1203 (914) | RS-3 | M&D (DL&W) | Maryland & Delaware Railroad, Federalsburg, MD | operational | Alco, 03/1952 | |
| 1202 (902) | RS-3 | M&D (DL&W) | Maryland & Delaware Railroad, Federalsburg, MD | operational | Alco, 08/1950 | |
| 1201 (911) | RS-3 | M&D (DL&W) | Maryland & Delaware Railroad, Federalsburg, MD | operational | Alco, 03/1952 | |
| 4 (103) | RS-1 | Algiers, Winslow & Western (Duluth, South Shore & Atlantic) | Indiana Railway Museum, French Lick, IN | operational | Alco, 01/1947 | |
| 43 | HH-660 | Buffalo Creek Flour | Western NY Railway Historical Society, Hamburg, NY | operational | Alco, 03/1940 | |
| 7371 | S-2 | Ashtabula, Carson & Jefferson (USAX) | Ashtabula, Carson & Jefferson Railroad, Jefferson, OH | operational | Alco, 04/1941 | |
| 745 | RS-1 | CRI&P | LASTA, Jefferson, LA | operational | Alco, 05/1943 | |
| 401 (756) | RS-1 | CMRR (Illinois Terminal) | Catskill Mountain Railroad, Kingston, NY | operational | Alco, 03/1950 | |
| 407 | S-1 | CMRR (LIRR) | Catskill Mountain Railroad, Kingston, NY | operational | Alco, 06/1946 | |
| 20 | RS-1 | Livonia Avon & Lakeville (Lake Erie, Franklin & Clarion) | Livonia Avon & Lakeville Railroad, Lakeville, NY | operational | Alco, 04/1949 | Owned by the Rochester & Genesse Valley Railroad Museum. |
| 1802 (863) | RS-11 | Falls Road (NYC&StL) | Falls Road Railroad, Lockport, NY | operational | Alco, 02/1959 | |
| 2035 (8035) | RS-32 | Genesee Valley (NYC) | Falls Road Railroad, Lockport, NY | operational | Alco, 06/1962 | |
| 106 | RS-1 | GCRM (E.I. Dupont) | Gold Coast Railroad Museum, Miami, FL | operational | Alco | |
| 62 (5854) | RS-11 | Napa Valley (SP) | Napa Valley Wine Train, Napa, CA | operational | Alco, 04/1959 | |
| 2064 (408) | C420 | VLIX (Lehigh Valley) | Southern Appalachia Railroad Museum, Oak Ridge, TN | operational | Alco, 10/1964 | |
| 39-5308 (105) | RS-1 | SARL (E.I. Dupont) | Southern Appalachia Railroad Museum, Oak Ridge, TN | operational | Alco, 06/1951 | |
| 275 (909) | RS-1 | CYDZ (Atlanta & St. Andrews Bay) | Conrad Yelvington, Ocala, FL | operational | Alco, 06/1944 | |
| 324 (306) | RSD-5 | NYC&StL (Utah) | Utah State Railroad Museum, Ogden, UT | operational | Alco, 11/1955 | From the Oregon Rail Heritage Center, Portland, OR. |
| 2 | RS-3 | Chickasaw (Magma Copper) | Oklahoma Railway Museum, Oklahoma City, OK | operational | Alco, 05/1955 | |
| 7 (608) | RS-2 | Texas State (Union) | Texas State Railroad, Palestine, TX | operational | Alco | |
| 4009 (7309) | RS-32 | Fillmore & Western (SP) | Southern California Railway Museum, Perris, CA | operational | Alco, 04/1962 | From the Fillmore & Western Railway, Fillmore, CA. |
| 1975 (8018) | RSD-1 | Orange Empire (US Army) | Southern California Railway Museum, Perris, CA | operational | Alco, 11/1942 | |
| 1956 (601) | RSD-1 | Orange Empire (Tennessee Coal & Iron) | Southern California Railway Museum, Perris, CA | operational | Alco, 04/1941 | US Army 8009. |
| 563 | S-1 | WP | Western Pacific Railroad Museum, Portola, CA | operational | Alco, 05/1951 | |
| 4 | S-1 | Quincy | Western Pacific Railroad Museum, Portola, CA | operational | Alco, 04/1942 | |
| 9 (260) | RS-1 | Eastman Kodak (Chicago & Western Indiana) | Rochester & Genesee Valley Railroad Museum, Rush, NY | operational | Alco, 02/1950 | |
| 211 (8445) | RS-3 | LV (PRR) | Rochester & Genesee Valley Railroad Museum, Rush, NY | operational | Alco, 12/1953 | High short hood. |
| 36 (361) | RS-11 | Ontario Midland (N&W) | CaroVail, Salem, NY | operational | Alco, 12/1957 | From the Ontario Midland, Sodus, NY. |
| 4116 | RS-3 | Greenwich & Johnsonville (D&H) | CaroVail, Salem, NY | operational | Alco, 09/1952 | From the SRNJ yard, Salem, NJ. |
| 4118 | RS-3 | Delaware Lackawanna (D&H) | Raven Rail, Salem, NY | operational | Alco, 10/1952 | From the DL&W, Scranton, PA. |
| 4103 | RS-3 | Delaware Lackawanna (D&H) | Raven Rail, Salem, NY | operational | Alco, 09/1952 | From the DL&W, Scranton, PA. |
| 0670 | RS-1 | NYNH&H | yard, Scantic, CT | operational | Alco, 11/1948 | |
| 50 | RS-1 | Central New England (Wachington Central) | yard, Scantic, CT | operational | Alco, 11/1947 | |
| 30 | RS-1 | Cape Cod Central (Genesse & Wyoming) | yard, Scantic, CT | operational | Alco, 05/1955 | |
| 1804 (3604) | RS-11 | Depew, Lancaster & Western (Duluth, Winnipeg & Pacific) | DL&W, Scranton, PA | operational | Alco, 08/1956 | |
| 1554 | RS-3 | CNJ | DL&W, Scranton, PA | operational | Alco, 04/1953 | |
| 4068 | RS-3 | Delaware Lackawanna (D&H) | DL&W, Scranton, PA | operational | Alco, 03/1952 | |
| 211 (7302) | RS-32 | Delaware Lackawanna (SP) | DL&W, Scranton, PA | operational | Alco, 04/1962 | |
| 20 (400) | RS-1 | A&M (Rutland) | Arkansas & Missouri Railroad, Springdale, AR | operational | Alco, 10/1951 | |
| 12 (46) | T6 | A&M (N&W) | Arkansas & Missouri Railroad, Springdale, AR | operational | Alco, 10/1959 | |
| 318 (901) | RS-27 | MNNR (C&NW) | Minnesota Commercial, St. Paul, MN | operational | Alco, 03/1962 | |
| 316 (904) | RS-27 | MNNR (C&NW) | Minnesota Commercial, St. Paul, MN | operational | Alco, 03/1962 | |
| 367 | RS-11 | Shenandoah Valley (N&W) | Shenandoah Railroad, Staunton, VA | operational | Alco, 11/1958 | |
| 529 | RS-3 | NYNH&H | Railroad Museum of New England, Thomaston, CT | operational | Alco, 08/1950 | |
| 1603 | HH-660 | CMStP&P | Illinois Railway Museum, Union, IL | operational | Alco, 03/1939 | |
| 200 | RS-3 | Minnesota Transfer | Illinois Railway Museum, Union, IL | operational | Alco, 10/1951 | |
| 2407 (841) | RSD-15 | Green Bay & Western (AT&SF) | Illinois Railway Museum, Union, IL | operational | Alco, 05/1960 | |
| 1689 | RSD-5 | C&NW | Illinois Railway Museum, Union, IL | operational | Alco, 09/1954 | |
| 14 (5) | S-1 | Nekoosa Paper (South Omaha Terminal) | Illinois Railway Museum, Union, IL | operational | Alco, 10/1947 | |
| 4 | Steeplecab | Commonwealth Edison | Illinois Railway Museum, Union, IL | operational | Alco-GE, 1911 | |
| 8255 (5504) | RS-3 | NYC (Penn Central) | Adirondack Railroad, Utica, NY | operational | Alco | |
| 1059 (4083A) | S-6 | Fillmore & Western (SP) | Virginia & Truckee, Virginia City, NV | operational | Alco, 06/1956 | From the Fillmore & Western Railway, Fillmore, CA. |
| 1633 (8277) | RS-3 | SAL (NYC) | Florida Railroad Museum, Willow, FL | operational | Alco, 07/1951 |
