# List of Milwaukee Road locomotives

These are locomotives of the Chicago, Milwaukee, St. Paul and Pacific Railroad, often referred to as the "Milwaukee Road". The Milwaukee was acquired by the Soo Line in 1985 and the Soo subsequently became part of the Canadian Pacific Railway.

## Steam

Milwaukee Road steam locomotives were organized into classes by wheel arrangement. Additional suffixes, where used indicated:
* s: fitted with a superheater (where the class was not fitted from new)
* r: fitted with a mechanical stoker (where the class was not fitted from new)

### Class A: 4-4-2

Class A was the 4-4-2 type.
| Class | Quantity | Builder | Built | Retired | Cylinders (bore × stroke) | Cylinders (bore × stroke) | Driver diameter | Driver diameter | Boiler pressure | Boiler pressure | Tractive effort | Tractive effort | Notes |
| Class | Quantity | Builder | Built | Retired | in | mm | in | m | psi | MPa | lbf | kN | Notes |
| A1 | 18 | BLW | 1896–1903 | 1934–1948 | 13 × 26 22 × 26 | 330×660 559×660 | 78 | 1.981 | 200 | 1.38 | C:15,577 S:20,250 | C:69.29 S:90.08 | Vauclain compound, all rebuilt simple 1921–1922 as class A1-a. Eleven superheated 1925–1929 as class A1-as. |
| A1-as | 11 | Milwaukee Road | 1925–1929 (rebuilt) | 1934–1948 | 19 × 26 | 483×660 | 79 | 2.007 | 200 | 1.38 | 20,197 | 89.84 | Simple |
| A2 | 9 | BLW | 1901 | 1927–1929 | 15 × 28 25 × 28 | 381×711 635×711 | 84 | 2.134 | 200 | 1.38 | 20,420 | 90.83 | Vauclain compound |
| A2-a | 19 | BLW | 1902–1903 | 1927–1929 | 15 × 28 25 × 28 | 381×711 635×711 | 84 | 2.134 | 200 | 1.38 | 20,420 | 90.83 | Vauclain compound |
| A2-b | 5 | Milwaukee Road | 1907–1908 | 1927–1929 | 15 × 28 25 × 28 | 381×711 635×711 | 85 | 2.159 | 220 | 1.52 | 22,190 | 98.71 | Compound |
| A2-c | 12 | BLW | 1908–1909 | 1928–1930 | 15 × 28 25 × 28 | 381×711 635×711 | 85 | 2.159 | 220 | 1.52 | 22,190 | 98.71 | Vauclain compound |
| A2 | 2 | BLW 31274, 31275 | 1907 | 1951 | 15 × 28 25 × 28 | 381×711 635×711 | 85 | 2.159 | 220 | 1.52 | 22,200 | 98.75 | Balanced compound, rebuilt simple as class A4-s |
| A4-s | 2 | Milwaukee Road | (rebuilt) | 1951 | 22 × 28 | 559×711 | 79 | 2.007 | 200 | 1.38 | 29,160 | 129.71 | |
| A3-s | 1 | BLW 33778 | 1909 | 1951 | 22 × 28 | 559×711 | 73 | 1.854 | | | 25,240 | 112.27 | Acquired with Idaho and Washington Northern Railroad. Rebuilt as class A4-as |
| A4-as | 1 | Milwaukee Road | (rebuilt) | 1951 | 22 × 28 | 559×711 | 79 | 2.007 | 200 | 1.38 | 29,162 | 129.72 | |
| A | 4 | Alco | 1935–1937 | 1949–1951 | 19 × 28 | 483×711 | 84 | 2.134 | 300 | 2.07 | 30,685 | 136.49 | Streamlined |

### Class B: 4-6-0

Class B was for Vauclain compound 4-6-0s built by Baldwin Locomotive Works. Most were rebuilt as simple engines, those not rebuilt were scrapped in the late 1920s.
| Class | Quantity | Builder | Built | Retired | Cylinders (bore × stroke) | Cylinders (bore × stroke) | Driver diameter | Driver diameter | Boiler pressure | Boiler pressure | Tractive effort | Tractive effort | Notes |
| Class | Quantity | Builder | Built | Retired | in | mm | in | m | psi | MPa | lbf | kN | Notes |
| B | 1 | BLW | 1892 | 1914 | 12 × 26 20 × 26 | 305×660 508×660 | 62 | 1.575 | 190 | 1.31 | 15,600 | 69.39 | Rebuilt to class G5-xs |
| B1 | 14 | BLW | 1895–1897 | 1913–1915 | 121⁄2 × 26 21 × 26 | 318×660 533×660 | 62 | 1.575 | 200 | 1.38 | C:17,950 S:21,540 | C:79.85 S:95.81 | All rebuilt to class G5-s |
| B2 | 37 | BLW | 1897–1899 | 1914–1925 | 131⁄2× 26 23 × 26 | 343×660 584×660 | 62 | 1.575 | 200 | 1.38 | C:20,944 S:25,500 | C:93.16 S:113.43 | 19 rebuilt to class G6-fs, 18 rebuilt to class G6-m |
| B2 | 7 | BLW | 1900 | 1915–1924 | 131⁄2× 26 23 × 26 | 343×660 584×660 | 62 | 1.575 | 200 | 1.38 | 21,250 | 94.52 | 3 rebuilt to class G6-gs, 4 rebuilt to G6-n |
| B3-x | 1 | BLW | 1899 | 1927 | 14 × 30 24 × 30 | 256×762 610×762 | 68 | 1.727 | 200 | 1.38 | 24,200 | 107.65 | Scrapped |
| B3 | 25 | BLW | 1900 | 1915–1927 | 15 × 26 25 × 26 | 381×660 635×660 | 68 | 1.727 | 200 | 1.38 | C:23,079 S:28,080 | C:102.66 S:124.91 | 9 rebuilt to class G6-s, 4 rebuilt to class G6-os, 12 rebuilt to class G6-ps. |
| B4-x | 1 | BLW | 1899 | 1927 | 15 × 30 25 × 30 | 381×762 635×762 | 69 | 1.753 | 200 | 1.38 | 26,630 | 118.46 | Scrapped |
| B4 | 16 | BLW | 1900 | 1921–1927 | 15 × 30 25 × 30 | 381×762 635×762 | 69 | 1.753 | 200 | 1.38 | C:26,630 S:31,956 | C:118.46 S:142.15 | Narrow firebox. 10 rebuilt to class G7-as, 6 scrapped |
| B4 | 66 | BLW | 1901–1903 | 1915–1925 | 15 × 28 25 × 28 | 381×711 635×711 | 63 | 1.600 | 200 | 1.38 | C:27,222 S:32,666 | C:121.09 S:145.31 | Wide firebox. 20 rebuilt to class G7-bs, 4 rebuilt to class G7-cs, 25 rebuilt to class G8, 17 rebuilt to class G8-a, |

### Class C: 2-8-0

Class C was the 2-8-0 type.
| Class | Quantity | Builder | Built | Retired | Cylinders (bore × stroke) | Cylinders (bore × stroke) | Driver diameter | Driver diameter | Boiler pressure | Boiler pressure | Tractive effort | Tractive effort | Notes |
| Class | Quantity | Builder | Built | Retired | in | mm | in | m | psi | MPa | lbf | kN | Notes |
| C1-a | 2 | BLW 19400–19401 | 1901 | 1934–1935 | 22 × 28 | 559×711 | 55 | 1.397 | 200 | 1.38 | 41,888 | 186.33 | |
| C1-b | 2 | BLW 19398–19399 | 1901 | 1934–1940 | 22 × 28 | 559×711 | 56 | 1.422 | 200 | 1.38 | 41,140 | 183.00 | Later class C1-c |
| C1-c | 65 | Milwaukee Road | 1904–1907 | 1934–1949 | 22 × 28 | 559×711 | 55 | 1.397 | 200 | 1.38 | 41,890 | 186.34 | |
| C1-d | 10 | Alco-Rogers | 1908–1909 | 1934–1936 | 22 × 28 | 559×711 | 57 | 1.448 | 190 | 1.31 | 38,391 | 170.77 | Acquired with Chicago, Terre Haute & Southeastern Railroad |
| C1-e | 5 | Alco-Brooks | 1905 | 1934–1936 | 191⁄2 × 28 | 495×711 | 57 | 1.448 | 200 | 1.38 | 31,754 | 141.25 | Acquired with Chicago, Milwaukee & Gary Railroad; né Detroit Southern Railroad |
| C1-f | 2 | BLW 32441–32442 | 1907 | 1934 | 21 × 28 | 533×711 | 55 | 1.397 | 200 | 1.38 | 38,166 | 169.77 | Acquired with Chicago, Milwaukee & Gary Railroad |
| C1-g | 2 | BLW 35425–35426 | 1910 | 1934 | 21 × 28 | 533×711 | 55 | 1.397 | 200 | 1.38 | 38,166 | 169.77 | Acquired with Chicago, Milwaukee & Gary Railroad |
| C2 | 75 | Milwaukee Road (25) BLW (50) | 1909–1910 | 1936–1965 | 23 × 30 | 584×762 | 63 | 1.600 | 200 | 1.38 | 42,820 | 190.47 | |
| C3 | 2 | BLW 32176, 32208 | 1907 | 1935 | 22 × 28 | 559×711 | 51 | 1.295 | 200 | 1.38 | 45,170 | 200.93 | Acquired with Idaho and Washington Northern Railroad |
| C3-a | 4 | BLW | 1910–1911 | 1934–1951 | 22 × 30 | 559×762 | 55 | 1.397 | 200 | 1.38 | 44,880 | 199.64 | Acquired with Idaho and Washington Northern Railroad |
| C3-b | 5 | Alco-Rogers | 1909 | 1945–1949 | 22 × 30 | 559×762 | 57 | 1.448 | 200 | 1.38 | 43,300 | 192.61 | |
| C4 | 1 | BLW 24742 | 1904 | 1927 | 20 × 24 | 508×610 | 49 | 1.245 | | | | | Acquired with Montana Railroad |
| C5 | 5 | Milwaukee Road | 1912 | 1951–1954 | 24 × 30 | 610×762 | 63 | 1.600 | 185 | 1.28 | 43,130 | 191.85 | |
| C5-a | 45 | Alco-Brooks (35) Milwaukee Road (10) | 1912–13 | 1945–1954 | 24 × 30 | 610×762 | 63 | 1.600 | 185 | 1.28 | 43,130 | 191.85 | |
| C7 | 5 | Alco-Schen | 1910 | 1950–1953 | 25 × 32 | 635×813 | 61 | 1.549 | 180 | 1.24 | 50,163 | 223.14 | Acquired with Chicago, Terre Haute & Southeastern Railroad |
| C7-a | 12 | Alco-Schen | 1912–1918 | 1950–1953 | 25 × 32 | 635×813 | 61 | 1.549 | 180 | 1.24 | 50,163 | 223.14 | Acquired with Chicago, Terre Haute & Southeastern Railroad |
| C9-a | 1 | Pittsburgh | 1901 | 1921 | 19 × 24 | 483×610 | 50 | 1.270 | | | | | Acquired with Tacoma Eastern Railroad |
| C9-b | 1 | BLW 5943 | 1881 | 1929 | 20 × 24 | 508×610 | 50 | 1.270 | 150 | 1.03 | 24,480 | 108.89 | Acquired with Bellingham Bay and British Columbia Railroad |
| C9-c | 1 | BLW 13800 | 1893 | 1929 | 19 × 24 | 483×610 | 50 | 1.270 | 150 | 1.03 | 26,511 | 117.93 | Acquired with Bellingham Bay and British Columbia Railroad |
| C9-d | 1 | BLW 24742 | 1904 | 1927 | 20 × 24 | 508×610 | 54 | 1.372 | | | | | Acquired with Bellingham Bay and British Columbia Railroad |
| C9-d | 1 | BLW 13800 | 1906 | 1935 | 22 × 28 | 559×711 | 50 | 1.270 | 200 | 1.38 | 46,076 | 204.96 | Acquired with Tacoma Eastern Railroad |

### Class D: 0-8-0

Class D was the 0-8-0 type.
| Image | Class | Quantity | Builder | Built | Retired | Cylinders (bore × stroke) | Cylinders (bore × stroke) | Driver diameter | Driver diameter | Boiler pressure | Boiler pressure | Tractive effort | Tractive effort | Notes |
| | Class | Quantity | Builder | Built | Retired | in | mm | in | m | psi | MPa | lbf | kN | Notes |
| | D1 | 2 | BLW 39758–39759 | 1913 | 1952 | 20 × 26 | 508×660 | 51 | 1.295 | 200 | 1.38 | 34,666 | 154.20 | Acquired with Chicago, Terre Haute & Southeastern Railroad |

### Class E

Class E was reserved for the electric locomotives.

### Class F: 4-6-2 and 4-6-4

Class F covered the 4-6-2 and 4-6-4 types.
| Class | Quantity | Builder | Built | Retired | Cylinders (bore × stroke) | Cylinders (bore × stroke) | Driver diameter | Driver diameter | Boiler pressure | Boiler pressure | Tractive effort | Tractive effort | Notes |
| Class | Quantity | Builder | Built | Retired | in | mm | in | m | psi | MPa | lbf | kN | Notes |
| F1 (1st) 4-6-2 | 1 | Schenectady 2855 | 1889 | 1926 | 19 × 24 | 483×610 | 68 | 1.727 | 180 | 1.24 | 19,490 | 86.70 | Rebuild to G4-g class 4-6-0 |
| F2 4-6-2 | 1 | Milwaukee Road | 1905 | 1929 | 23 × 26 | 584×660 | 72 | 1.829 | 200 | 1.38 | 34,470 | 153.33 |
| F3 4-6-2 | 70 | Alco-Brooks 47442–47491, 48714–47433 | 1910 | 1929–1954 | 23 × 28 | 584×711 | 79 | 2.007 | 200 | 1.38 | 31,870 | 141.76 | All rebuilt to F3-s, F3-as or F3-bs. Two streamlined as F1 (second). One streamlined as F3 (second) |
| F4 4-6-2 | 70 | Milwaukee Road | 1910 | 1916–1954 | 23 × 28 | 584×711 | 69 | 1.753 | 200 | 1.38 | 36,490 | 162.32 | All rebuilt to F4-b (2), F4-ms (17) or F5-bs (6). |
| F5 4-6-2 | 65 (+6) | Milwaukee Road (15 new, 6 rebuilt from F4) Alco-Brooks (50) 51134–51163, 51328–51347 | 1911–1912 | 1934–1954 | 25 × 28 | 635×711 | 69 | 1.753 | 185 | 1.28 | 39,880 | 177.40 | All rebuilt to F5-b, F5-n or F3-an. |
| F6 4-6-4 | 14 | BLW 61135–61148 | 1930 | 1952–1954 | 26 × 28 | 660×711 | 80 | 2.032 | 225 | 1.55 | 45,250 | 201.28 | |
| F6-a 4-6-4 | 8 | BLW 61655–61662 | 1931 | 1952–1954 | 26 × 28 | 660×711 | 80 | 2.032 | 225 | 1.55 | 45,250 | 201.28 | |
| F7 4-6-4 | 6 | Alco 69064–69069 | 1938 | 1949–1951 | 231⁄2 × 30 | 597×762 | 84 | 2.134 | 300 | 2.07 | 50,194 | 223.27 | Streamlined |

### Class G: 4-6-0

Class G was the simple 4-6-0 type, some of which were rebuilt from class B compounds.
| Class | Quantity | Builder | Built | Retired | Cylinders (bore × stroke) | Cylinders (bore × stroke) | Driver diameter | Driver diameter | Boiler pressure | Boiler pressure | Tractive effort | Tractive effort | Notes |
| Class | Quantity | Builder | Built | Retired | in | mm | in | m | psi | MPa | lbf | kN | Notes |
| G1 | 1 | Cooke | 1892 | 1902 | 17 × 24 | 432×610 | 56 | 1.422 | 130 | 0.90 | 20,600 | 91.63 | Acquired with Milwaukee and Superior Railroad |
| G2 | 4 | Brooks 1333–1335, 1514 | 1888–1889 | 1925–1927 | 18 × 24 | 457×610 | 56 | 1.422 | | | | | Acquired with Milwaukee and Northern Railroad |
| G2-a | 2 | Brooks 1707–1708 | 1890 | 1926 | 18 × 24 | 457×610 | 57 | 1.448 | | | | | Acquired with Milwaukee and Northern Superior Railroad |
| G2-b | 1 | PRR's Logansport, Indiana shops | 1888 | 1926 | 19 × 22 | 483×559 | 50 | 1.270 | | | | | Acquired with Tacoma Eastern Railroad |
| G2-c | 1 | BLW 23673 | 1904 | 1931 | 18 × 24 | 457×610 | 63 | 1.600 | 200 | 1.38 | 20,980 | 93.32 | Acquired with Tacoma Eastern Railroad |
| G3 | 7 | R.I. 2548, 2635–2640 | 1891–1892 | 1926–1927 | 18 × 24 | 457×610 | 57 | 1.448 | 160 | 1.10 | 18,550 | 82.51 | |
| G4 | 1 | Schen | | 1925 | 18 × 26 | 457×660 | 57 | 1.448 | | | | | Acquired with Montana Railroad |
| G4-a | 4 | Brooks 1219–1220, 1255–1256 | 1887 | 1926–1928 | 18 × 24 | 457×610 | 51 | 1.295 | 150 | 1.03 | 19,440 | 86.47 | Acquired with Milwaukee and Northern Railroad |
| G4-b | 2 | R.I. 3128–3129 | 1896 | 1927–1929 | 18 × 24 | 457×610 | 57 | 1.448 | 185 | 1.28 | 19,133 | 85.11 | Acquired with Des Moines Northern and Western Railroad |
| G4-c | 3 | R.I. 1047, 1052–1053 | 1881 | 1926 | 19 × 26 | 483×660 | 62 | 1.575 | | | | | |
| G4-d | 20 | R.I. 1411–1430 | 1883 | 1926–1933 | 19 × 26 | 483×660 | 63 | 1.600 | 150 | 1.03 | 18,995 | 84.49 | |
| G4-e | 101 | R.I. (40); Schen (35); Brooks (1); Grant (25); | 1885–1888 | 1926–1933 | 19 × 26 | 483×660 | 63 | 1.600 | 150 | 1.03 | 18,995 | 84.49 |
| G4-f | 7 | BLW 15888–15891, 16017–16019 | 1898 | | 18 × 24 | 457×610 | 51 | 1.295 | 180 | 1.24 | 20,872 | 92.84 | Acquired with Chicago, Terre Haute and Southeastern Railroad, né Southern Indiana |
| G4-g | 1 | MILW's Milwaukee shops | 1926 (rebuilt) | 1930 | 19 × 24 | 483×610 | 68 | 1.727 | 180 | 1.24 | 19,494 | 86.71 | Rebuilt from F1 class 4-6-2 |
| G5 | 27 | R.I. | 1891 | 1925–1934 | 19 × 26 | 483×660 | 57 | 1.448 | 150 | 1.03 | 20,995 | 93.39 | Eight sold to Montana Railroad in 1907; re-acquired with Montana Railroad in 1910. |
| G5-a | 19 | Schen 3302–3311 (10); BLW (9) | 1890–1892 | 1926–1935 | 18 × 26 | 452×660 | 63 | 1.600 | 180 | 1.24 | 20,460 | 91.01 | |
| G5-b | 1 | R.I. 2151 | 1889 | 1926 | 19 × 24 | 483×610 | 64 | 1.626 | | | | | |
| G5-s | 15 | Milwaukee Road (re-builder) | 1913–1915 | 1938–1945 | 19 × 26 | 483×660 | 63 | 1.600 | 180 | 1.24 | 22,794 | 101.39 | Rebuilt from class B1 |
| G5-c | 1 | BLW 32348 | 1907 | 1927 | 19 × 26 | 483×660 | 56 | 1.422 | | | | | Acquired with Bellingham Bay and British Columbia Railroad |
| G5-d | 3 | Rogers 5386–5388 | 1899 | 1930–1934 | 18 × 26 | 457×660 | 51 | 1.295 | 190 | 1.31 | 26,676 | 118.66 | Acquired with Chicago, Terre Haute and Southeastern Railroad; né Southern Indiana Railroad |
| G5-e | 10 | BLW | 1903 | 1934 | 19 × 26 | 483×660 | 53 | 1.346 | 180 | 1.24 | 27,095 | 120.52 | Acquired with Chicago, Terre Haute and Southeastern Railroad; né Southern Indiana Railroad |
| G6-a | 28 | Milwaukee Road's Milwaukee Shops | 1905 | 1931–1936 | 201⁄2 × 26 | 521×660 | 73 | 1.854 | 200 | 1.38 | 25,445 | 113.18 | 17 superheated as class G6-as |
| G6-b | 5 | Milwaukee Road's Milwaukee Shops | 1907 | 1945–1948 | 201⁄2 × 26 | 521×660 | 73 | 1.854 | 200 | 1.38 | 25,445 | 113.18 | 4 superheated as class G6-bs |
| G6-c | 13 | Alco-Brooks 45789–45801 | 1909 | 1930–1948 | 201⁄2 × 26 | 521×660 | 73 | 1.854 | 200 | 1.38 | 25,445 | 113.18 | 11 superheated ad class G6-cs |
| G6-d | 2 | BLW 31269–31270 | 1907 | 1935 | 18 × 26 | 457×660 | 56 | 1.422 | 200 | 1.38 | 25,570 | 113.74 | Acquired with Idaho and Washington Northern Railroad |
| G6-e | 3 | BLW 31648, 32119, 32764 | 1907–1908 | 1935 | 19 × 26 | 483×660 | 63 | 1.600 | 200 | 1.38 | 25,327 | 112.66 | Acquired with Idaho and Washington Northern Railroad |
| G6-fs | 18 | Milwaukee Road (rebuilder) | 1914–1918 (rebuilt) | 1932–1954 | 20 × 26 | 508×660 | 63 | 1.600 | 180 | 1.24 | 25,260 | 112.36 | Rebuilt from class B2 |
| G6-gs | 3 | Milwaukee Road (rebuilder) | 1915 (rebuilt) | 1945–1953 | 20 × 26 | 508×660 | 63 | 1.600 | 180 | 1.24 | 25,257 | 112.35 | Rebuilt from class B2 |
| G6-h | 1 | Cooke 2252 | 1893 | 1930 | 21 × 26 | 533×660 | 63 | 1.600 | 180 | 1.24 | 31,326 | 139.34 | Acquired with Tacoma Eastern Railroad |
| G6-k | 3 | BLW 23682, 26638, 28486 | 1904–1906 | 1926–1932 | 20 × 26 | 508×660 | 57 | 1.448 | 190 | 1.31 | 29,327 | 130.45 | Acquired with Tacoma Eastern Railroad |
| G6-m | 18 | Milwaukee Road (rebuilder) | 1921–1928 (rebuilt) | 1950–1954 | 19 × 26 | 483×660 | 63 | 1.600 | 180 | 1.24 | 25,327 | 112.66 | Rebuilt from class B2; all superheated as class G6-ms |
| G6-n | 4 | Milwaukee Road (rebuilder) | 1921–24 (rebuilt) | 1941–1952 | 19 × 26 | 483×660 | 63 | 1.600 | 180 | 1.24 | 25,327 | 112.66 | Rebuilt from class B2; all superheated as class G6-ns |
| G6-os | 4 | Milwaukee Road (rebuilder) | 1921 (rebuilt) | 1949–1951 | 22 × 26 | 559×660 | 69 | 1.753 | 200 | 1.38 | 31,004 | 137.91 | Rebuilt from class B3 |
| G6-ps | 12 | Milwaukee Road (rebuilder) | 1921–1927 (rebuilt) | 1947–1954 | 22 × 26 | 559×660 | 69 | 1.753 | 200 | 1.38 | 31,004 | 137.91 | Rebuilt from class B3; Two streamlined as class G 1937–1948 |
| G6-s | 10 | Milwaukee Road (rebuilder) | 1915–1918 (rebuilt) | 1945–1951 | 221⁄2 × 26 | 572×660 | 69 | 1.753 | 180 | 1.24 | 29,190 | 129.84 | Rebuilt from class B3 |
| G6-r | 4 | Alco-Rogers 37567–37572 | 1905 | 1934 | 19 × 26 | 483×660 | 57 | 1.448 | 190 | 1.31 | 26,554 | 118.12 | Acquired with Chicago, Terre Haute and Southeastern Railroaad, né Chicago Southern Railroad |
| G7 | 81 | Milwaukee Road's Milwaukee Shops | 1904–1909 | 1928–1940 | 21 × 30 | 533×762 | 69 | 1.753 | 200 | 1.38 | 32,600 | 145.01 | Seven superheated as class G7-s |
| G7-as | 10 | Milwaukee Road (rebuilder) | 1921 (rebuilt) | 1940–1954 | 21 × 30 | 533×762 | 69 | 1.753 | 200 | 1.38 | 32,595 | 144.99 | Rebuilt from class B4 |
| G7-bs | 20 | Milwaukee Road (rebuilder) | 1915–1918 (rebuilt) | 1950–1954 | 22 × 28 | 559×711 | 63 | 1.600 | 180 | 1.24 | 32,912 | 146.40 | Rebuilt from class B4 |
| G7-cs | 4 | Milwaukee Road (rebuilder) | 1918–1920 (rebuilt) | 1948–1954 | 22 × 28 | 559×711 | 63 | 1.600 | 180 | 1.24 | 32,912 | 146.40 | Rebuilt from class B4 |
| G8 | 25 | Milwaukee Road (rebuilder) | 1919–1920 (rebuilt) | 1950–1957 | 22 × 28 | 559×711 | 63 | 1.600 | 200 | 1.38 | 36,568 | 162.66 | Rebuilt from class B4 |
| G8-a | 15 | Milwaukee Road (rebuilder) | 1921–1925 (rebuilt) | 1948–1956 | 22 × 28 | 559×711 | 63 | 1.600 | 200 | 1.38 | 36,568 | 162.66 | Rebuilt from class B4 |

### Class H: 4-4-0

Class H covered the 4-4-0 "American" type.
* Milwaukee Road class H1
* Milwaukee Road class H2
* Milwaukee Road class H3
* Milwaukee Road class H4
* Milwaukee Road class H5
| Class | Quantity | Builder | Built | Retired | Cylinders (bore × stroke) | Cylinders (bore × stroke) | Driver diameter | Driver diameter | Boiler pressure | Boiler pressure | Tractive effort | Tractive effort | Notes |
| Class | Quantity | Builder | Built | Retired | in | mm | in | m | psi | MPa | lbf | kN | Notes |
| H6 | 2 | Brooks 1599–1600 | 1890 | 1926–1927 | 17 × 24 | 432×610 | 62 | 1.575 | | | | | Acquired 1893 with Milwaukee and Northern |
| H6-b | 3 | Schen.3556–3557 R. I. 2797 | 1891–1892 | 1926–1930 | 17 × 24 | 432×610 | 62 | 1.575 | | | | | Acquired 1899 with Des Moines and North Western |
| H6-c | 4 | Brooks 1432–1433, 1512–1513 | 1888–1889 | 1926 | 17 × 24 | 432×610 | 62 | 1.575 | | | | | Acquired 1893 with Milwaukee and Northern |
| H6-d | 31 | R. I. 1687–1696 Brooks 1148 Cooke 1754–1763 Grant (10) | 1886–1887 | 1926–1947 | 18 × 24 | 457×610 | 68 | 1.727 | 150 | 1.03 | 14,500 | 64.50 | |
| H7 | 18 | R. I. 1272–1293, 1304–1306 | 1882–1883 | 1925–1932 | 18 × 24 | 457×610 | 63 | 1.600 | 150 | 1.03 | 15,705 | 69.86 | |
| H7-a | 3 | R. I. 1676–1678 | 1886 | 1928–1930 | 18 × 24 | 457×610 | 63 | 1.600 | 150 | 1.03 | 15,740 | 70.02 | Acquired with Chicago, Evanston and Lake Shore Railroad |
| H7-b | 10 | Schen. 2962–2971 | 1889–1900 | 1927–1933 | 17 × 24 | 432×610 | 63 | 1.600 | 180 | 1.24 | 16,840 | 74.91 | |
| H7-c | 1 | BLW 18555 | 1901 | 1928 | 17 × 24 | 432×610 | 68 | 1.727 | | | | | Acquired from Davenport, Rock Island and Northwestern Railroad |
| H7-d | 1 | BLW 18699 | 1901 | 1928 | 17 × 24 | 432×610 | 68 | 1.727 | | | | | Acquired from Davenport, Rock Island and Northwestern Railroad |
| H8 | 9 | Rogers 6228–6232 Alco (4) | 1904–1905 | 1934–1951 | 18 × 26 | 457×660 | 69 | 1.753 | 180 | 1.24 | 19,236 | 85.57 | Acquired with Chicago, Terre Haute and Southeastern Railroad |

### Class I: 0-6-0

Class I covered the 0-6-0 switcher types.
| Class | Quantity | Builder | Built | Retired | Cylinders (bore × stroke) | Cylinders (bore × stroke) | Driver diameter | Driver diameter | Boiler pressure | Boiler pressure | Tractive effort | Tractive effort | Notes |
| Class | Quantity | Builder | Built | Retired | in | mm | in | m | psi | MPa | lbf | kN | Notes |
| I1 | 3 | BLW 2391, 4330, 4340 | 1871, 1878 | 1917 | 16 × 24 | 406×310 | 50 | 1.270 | | | | | |
| I2 | 2 | Brooks 1340, 1673 | 1888, 1890 | 1918 | 17 × 24 | 432×310 | 50 | 1.270 | | | | | Acquired with Milwaukee and Northern |
| I3 | 9 | Rhode Island 2621, 2622, 2624, 2702–2707 | 1891 | 1926–1945 | 18 × 24 | 457×310 | 50 | 1.270 | 160 | 1.10 | 20,736 | 92.24 | Two rebuilt to 0-6-0ST as class I3-ax |
| I4 | 3 | Milwaukee Shops | 1891–1895 | 1926–1928 | 18 × 24 | 457×310 | 51 | 1.295 | 180 | 1.24 | 23,330 | 103.78 | |
| I4-a | 43 | Milwaukee Shops (38) BLW 16206–16210 (5) | 1898–1902 | 1909–1944 | 18 × 24 | 457×310 | 51 | 1.295 | 180 | 1.24 | 23,330 | 103.78 | One rebuilt to 0-6-0ST as class I-4ax |
| I5 | 6 | Milwaukee Shops | 1902–1903 | 1931–1934 | 19 × 26 | 483×660 | 51 | 1.295 | 180 | 1.24 | 28,160 | 125.26 | |
| I5-a | 166 | Milwaukee Shops | 1903–1913 | 1933–1955 | 19 × 26 | 483×660 | 51 | 1.295 | 180 | 1.24 | 28,158 | 125.25 | Two rebuilt to 0-6-0ST as class I-5ax |
| I5-b | 2 | BLW 32423, 34354 | 1907, 1910 | 1934 | 19 × 26 | 483×660 | 51 | 1.295 | 180 | 1.24 | 28,158 | 125.25 | Acquired with Chicago, Milwaukee and Gary |
| I6-s | 10 | Milwaukee Shops | 1913–1914 | 1948–1956 | 20 × 26 | 508×660 | 51 | 1.295 | 180 | 1.24 | 31,200 | 138.78 | |

### Class J: 0-4-0

Class J covered 0-4-0 switchers.
| Class | Quantity | Builder | Built | Retired | Cylinders (bore × stroke) | Cylinders (bore × stroke) | Driver diameter | Driver diameter | Boiler pressure | Boiler pressure | Tractive effort | Tractive effort | Notes |
| Class | Quantity | Builder | Built | Retired | in | mm | in | m | psi | MPa | lbf | kN | Notes |
| J1 | 2 | BLW 3488–3489 | 1873 | 1905 | 14 × 22 | 356×559 | 49 | 1.245 | | | | | |
| J2 | 3 | Brooks | 1883–1887 | 1911–1917 | 16 × 22 | 406×559 | 48 | 1.219 | | | | | Acquired with Milwaukee and Northern |
| J2-a | 80 | various | 1878–1882 | 1906–1930 | 16 × 22 | 406×559 | 50 | 1.270 | 130 | 0.90 | 12,200 | 54.27 | |
| J3 | 5 | Grant | 1893 | 1918–1926 | 16 × 22 | 406×559 | 51 | 1.295 | 160 | 1.10 | 15,020 | 66.81 | |

### Class K: 2-6-2

Class K comprised 2-6-2 "Prairie" locomotives.
| Class | Quantity | Builder | Built | Retired | Cylinders (bore × stroke) | Cylinders (bore × stroke) | Driver diameter | Driver diameter | Boiler pressure | Boiler pressure | Tractive effort | Tractive effort | Notes |
| Class | Quantity | Builder | Built | Retired | in | mm | in | m | psi | MPa | lbf | kN | Notes |
| K1 | 195 | Alco (125) Milwaukee Road (70) | 1907–1909 | 1935–1945 | 21 × 28 | 533×711 | 63 | 1.600 | 200 | 1.38 | 33,320 | 148.21 | 71 rebuilt to K1-as |
| K1-as | 71 | Alco (41) Milwaukee Road (30) | | 1935–1955 | 211⁄2 × 28 | 546×711 | 63 | 1.600 | 185 | 1.28 | 32,310 | 143.72 | rebuilt from K1 |
| K1-a | 1 | BLW 34918 | 1910 | 1927 | 17 × 24 | 432×610 | 44 | 1.118 | | | | | Acquired with Puget Sound and Willapa Harbor Railroad. Sold to Cascade Timber Company |

### Class L: 2-8-2

Class L was for 2-8-2 "Mikado" locomotives.
| Class | Quantity | Builder | Built | Retired | Cylinders (bore × stroke) | Cylinders (bore × stroke) | Driver diameter | Driver diameter | Boiler pressure | Boiler pressure | Tractive effort | Tractive effort | Notes |
| Class | Quantity | Builder | Built | Retired | in | mm | in | m | psi | MPa | lbf | kN | Notes |
| L1 | 20 | Milwaukee Road | 1909 | 1945–1954 | 24 × 30 | 610×762 | 63 | 1.600 | 200 | 1.38 | 46,630 | 207.42 | 2 locomotives superheated as L1-s |
| L1-s | 2 | Milwaukee Road | | 1940 | 26 × 30 | 660×762 | 63 | 1.600 | 185 | 1.28 | 50,620 | 225.17 | |
| L2 | 180 | Milwaukee Road (40) Alco (140) | 1912–1914 | 1935–1955 | 26 × 30 | 660×762 | 63 | 1.600 | 200 | 1.38 | 54,723 | 243.42 | 69 fitted with stokers as class L2-r |
| L2a | 100 | BLW | 1920 | 1949–1954 | 26 × 30 | 660×762 | 63 | 1.600 | 200 | 1.38 | 54,723 | 243.42 | |
| L2b | 100 | BLW | 1922–1923 | 1950–1956 | 26 × 30 | 660×762 | 63 | 1.600 | 200 | 1.38 | 54,723 | 243.42 | |
| L3 | 100 | Alco 59740–59789, 61042–61046, 61148–61192 | 1918–1919 | 1938–1956 | 27 × 32 | 686×813 | 63 | 1.600 | 200 | 1.38 | 62,949 | 280.01 | USRA Heavy Mikado. 18 fitted with booster as class L3-a. One fitted with tender booster as class L3-b |

### Class M: 2-6-0

Class M was for the 2-6-0 type.
| Class | Quantity | Builder | Built | Retired | Cylinders (bore × stroke) | Cylinders (bore × stroke) | Driver diameter | Driver diameter | Boiler pressure | Boiler pressure | Tractive effort | Tractive effort | Notes |
| Class | Quantity | Builder | Built | Retired | in | mm | in | m | psi | MPa | lbf | kN | Notes |
| M1 | 2 | BLW | 1905 | 1925, 1927 | 18 × 24 | 457×610 | 63 | 1.600 | 190 | 1.31 | 19,930 | 88.65 | Acquired with Montana Railroad |
| M1a | 1 | BLW | 1891 | 1928 | 17 × 24 | 432×610 | 54 | 1.372 | | | | | Acquired with Bellingham Bay and British Columbia Railroad |
| M1b | 3 | BLW | 1892 | 1930 | 20 × 24 | 508×610 | 51 | 1.295 | 140 | 0.97 | 22,400 | 99.64 | Acquired with Chicago, Terre Haute and Southeastern Railroad |
| M1c | 2 | BLW | 1901 | 1930 | 20 × 24 | 508×610 | 51 | 1.295 | 160 | 1.10 | 25,600 | 113.87 | Acquired with Chicago, Terre Haute and Southeastern Railroad, originally Southern Indiana Railroad |
| M1d | 11 | Rogers | 1904, 1905 | 1910–1934 | 20 × 24 | 508×610 | 51 | 1.295 | 160 | 1.10 | 25,600 | 113.87 | Acquired with Chicago, Terre Haute and Southeastern Railroad, originally Southern Indiana Railroad. |
| M1e | 4 | Alco | 1904, 1905 | 1934 | 19 × 26 | 483×660 | 57 | 1.448 | 200 | 1.38 | 27,996 | 124.53 | Acquired with Chicago, Milwaukee and Gary Railroad, originally, Illinois, Iowa and Minnesota Railroad. |
| M2 | 4 | Alco | 1905, 1906 | 1927–1934 | 20 × 28 | 508×711 | 63 | 1.600 | 200 | 1.38 | 30,222 | 134.43 | ex Chicago Junction. |

### Class N: 2-6-6-2

Class N consisted of articulated locomotives of 2-6-6-2 arrangement.
| Class | Quantity | Builder | Built | Retired | Cylinders (bore × stroke) | Cylinders (bore × stroke) | Driver diameter | Driver diameter | Boiler pressure | Boiler pressure | Tractive effort | Tractive effort | Notes |
| Class | Quantity | Builder | Built | Retired | in | mm | in | m | psi | MPa | lbf | kN | Notes |
| N1 | 25 | Alco-S 48838–48862 | 1910–1911 | 1928–1935 | 231⁄2 × 30 37 × 30 | 597×762 940×762 | 57 | 1.448 | 200 | 1.38 | 70,396 | 313.14 | Compound Mallet. 17 rebuilt to class N3 |
| N2 | 16 | Alco-S 51057–51066, 52124–52129 | 1912 | 1934–1949 | 231⁄2 × 30 37 × 30 | 597×762 940×762 | 57 | 1.448 | 200 | 1.38 | 70,396 | 313.14 | Compound Mallet |
| N3 | 17 | Milwaukee Road (re-built) | 1929–1931 | 1950–1954 | 211⁄2 × 30 | 546×762 | 57 | 1.448 | 200 | 1.38 | 87,720 | 390.20 | Four cylinder simple articulated. Rebuilt from class N1 |

### Class S: 4-8-4

Class S were 4-8-4 "Northern" locomotives.
| Class | Quantity | Builder | Built | Retired | Cylinders (bore × stroke) | Cylinders (bore × stroke) | Driver diameter | Driver diameter | Boiler pressure | Boiler pressure | Tractive effort | Tractive effort | Notes |
| Class | Quantity | Builder | Built | Retired | in | mm | in | m | psi | MPa | lbf | kN | Notes |
| S1 | 2 | BLW 61176 (1), Milwaukee Shops (1) | 1930 (1), 1938 (1) | 1954 | 28 × 30 | 711×762 | 74 | 1.88 | 230 | 1.59 | 62,136 | 276.39 | |
| S2 | 40 | BLW 62089–62118, 62344–62353 | 1937–1940 | 1954–1956 | 26 × 32 | 660×813 | 74 | 1.88 | 285 | 1.97 | 70,816 | 315.01 | |
| S3 | 10 | Alco 71973–71982 | 1944 | 1954–1956 | 26 × 32 | 660×813 | 74 | 1.88 | 250 | 1.72 | 62,116 | 276.31 | Two preserved: (261) in Minneapolis, 265 at IRM |

### Class X: Shay

Class X covered Lima Shay's.
| Class | Quantity | Builder | Built | Retired | Cylinders (bore × stroke) | Cylinders (bore × stroke) | Driver diameter | Driver diameter | Boiler pressure | Boiler pressure | Tractive effort | Tractive effort | Notes |
| Class | Quantity | Builder | Built | Retired | in | mm | in | m | psi | MPa | lbf | kN | Notes |
| Milwaukee Road class X1 | 1 | Lima 2057 | 1908 | after 1947 | 11 × 12 | | 32 | 0.813 | 200 | | 22,563 lbs | | Class B, 50 Ton Shay. CM&StP 1499, renumbered as CM&StP 25 in 1912 |
| Milwaukee Road class X2 | 1 | Lima 1912 | 6/1907 | sold 1919 | 12 × 15 | | 36 | 0.914 | 200 | | 30,375 lbs | | Class C, 3 truck shay. Acquired with the Idaho & Washington Northern Railroad as their #6. Renumbered as CM&StP 26 in 1916. |

## Diesel
### ALCO

| Model | Milwaukee class | Quantity | Built | Retired | Notes |
| ALCO HH600 | 6-AS | 2 | 1939 | 1961 | |
| ALCO HH660 | 6.6-AS | 2 | 1940 | 1961 | |
| ALCO HH1000 | 10-AS | 2 | 1940 | 1965 | |
| Alco S-2 | 10-AS | 31 | 1940–50 | 1960-66 | |
| Alco S-4 | 10-AS | 34 | 1950–54 | 1966-76 | |
| ALCO RS-1 | 10-ARS | 7 | 1941 (2); 1943 (2); 1953 (3) | 1943 (2); 1967 (5) | First two requisitioned by US Army in 1943. |
| ALCO RSC-2 | 15-ARS-6 | 18 | 1946–47 | 1967-76 (RSC-2) / 1976 (RSC-2m) | Three swapped trucks with RS-2s in 1955. Four others rebuilt by Alco to "RSC-2m" in 1965 |
| ALCO RS-2 | 15-ARS | 4 | 1949 | 1967-72 | Three swapped trucks with RSC-2s in 1955 |
| ALCO RS-3 | 16-ARS | 21 | 1953–55 | 1966-76 | |
| ALCO RSD-5 | 16-ARS-6 | 6 | 1953 | 1976 | |
| ALCO DL-107 | 20-AP-6 | 2 | 1941 | 1962 | |

### Baldwin

| Model | Milwaukee class | Quantity | Built | Retired | Notes |
| Baldwin VO-660 | 6.6-BS | 1 | 1940 | 1961 | |
| Baldwin VO-1000 | 10-BS | 12 | 1940–45 | 1965–72 | |
| Baldwin DS-4-4-1000 | 10-BS | 10 | 1948–49 | 1967-76 | |
| Baldwin S-12 | 12-BS | 21 | 1950–54 | 1968–76 | |
| Baldwin RS-12 | 12-BRS | 2 | 1951–52 | 1974–76 | |
| Baldwin AS-616 | 16-BRS-6 | 8 | 1951–53 | 1967-76 | Two were built as AS-616B models (rebuilt as AS-616 in 1953) |

### Davenport

| Image | Model | Milwaukee class | Quantity | Built | Retired | Notes |
| | Davenport 44-ton | 3.8-DS; | 2 | 1942 | 1958 | 380 hp |

### EMD
#### Switchers

| Model | Milwaukee class | Quantity | Built | Retired | Notes |
| EMD SW1 | 6-ES | 25 | 1939–41 | 1975–1983 | |
| EMD NW2 | 10-ES | 8 | 1939–1947 | 1981–1984 | |
| EMD TR2 | | 2 units (1 A–B cow–calf set) | 1949 | 1978–1979 | |
| EMD SW7 | 10-ES | 1 | 1950 | 1984 | |
| EMD TR4 | | 12 units (6 A–B cow–calf sets) | 1950–1951 | 1980–1984 | |
| EMD SW9 | 9-ES | 3 | 1951 | 1982–1984 | |
| EMD SW1200 | 12-ES | 48 | 1954 | 1980–(end) | |
| EMD MP15AC | 15-ES | 64 | 1975–76 | (end) | all to Soo Line Railroad |

#### Cab units

| Model | Milwaukee class | Quantity | Built | Retired | Notes |
| EMD E6 | 20-EP | 2 A units | 1941 | 1961 | |
| EMD E7 | 20-EP | 10 A units | 1946 | 1969 | |
| EMD E9 | 24-EP | 18 units (6 ABA sets) | 1956 | 1973 | Built to UP specification with steam generators for inter-city service. |
| EMD E9 | 24-EP | 6 A units | 1961 | 1982 | Built equipped with head end power for suburban service. |
| EMD FT | 13.5-EF | 52 units (26 A-B semi-permanently coupled pairs, making up 13 ABBA sets) | 1941–45 | 1959 | |
| EMD F3 | 15-EF | 16 units (4 ABBA sets) | 1949 | 1965 | |
| EMD F7 | 15-EF | 118 units (68 A units, 50 B units) | 1949–1953 | 1974–1984 | |
| EMD FP7 | 15-EP | 32 (16 FP7-F7B-FP7 sets) | 1950–1952 | 1976–1984 | Five sets reassigned to freight service |
| EMD F9 | 17.5-EF | 12 units (6 AB sets) | 1954 | 1977–1982 | Four A units re-equipped for suburban service |

#### Cowl units

| Image | Model | Milwaukee class | Quantity | Built | Retired | Notes |
| | EMD FP45 | 36-EP-6 | 5 | 1968 | 1982–1984 | Built for intercity passenger train service. All five later re-equipped for freight train service after formation of Amtrak. |
| | EMD F40C | | 15 | 1974 | | Built for suburban commuter passenger service. All later turned over to RTA when RTA assumed responsibility for suburban commuter passenger service. Two units remain in service with Metra in 2014. Model was unique to Milwaukee Road. |

#### Hood units

| Model | Milwaukee class | Quantity | Built | Retired | Notes |
| EMD SD7 | 15-ERS-6 | 24 | 1952–53 | | 17 rebuilt to "SD10" |
| EMD GP9 | 17.5-ERS | 128 | 1954–59 | | 54 rebuilt to "GP20m" |
| EMD SD9 | 17.5-ERS-6 | 14 | 1954 | | 4 rebuilt to "SD10" |
| EMD GP30 | 22.5-ERS | 16 | 1963 | 1984 | |
| EMD GP35 | 25-ERS | 12 | 1965 | 1984 | |
| EMD SDL39 | 23-ERS-6 | 10 | 1969–72 | | Model unique to the Milwaukee Road |
| EMD GP40 | 30-ERS-4 | 72 | 1966–69 | | |
| EMD SD45 | 36-ERS-6 | 10 | 1968 | | |
| EMD SD40-2 | 30-ERS-6 | 90 | 1972–74 | | |
| EMD GP38-2 | 20-ERS-4 | 16 | 1973–74 | | |

### Fairbanks-Morse

| Model | Milwaukee class | Quantity | Built | Retired | Notes |
| FM H-10-44 | 10-FS | 24 | 1944–50 | 1978–81 | |
| FM H-12-44 | 12-FS | 48 | 1950–55 | 1972–81 | |
| FM H-16-44 | 16-FRS | 37 | 1954–56 | 1967–76 | |
| FM H-16-66 | 16-FRS-6 | 6 | 1953 | 1972-75 | Railfan nickname - Baby Trainmaster |
| FM CF-16-4 | 15-FF | 18 | 1951 | 1966-67 | 6 ABA sets |
| FM Erie-built | 20-FP-6 | 20 (14 A units, 6 B units) | 1946–48 | 1963 | originally 6 ABA sets, 1 AA set |

### General Electric

| Model | Milwaukee class | Quantity | Built | Retired | Notes |
| GE 44-ton | 3.6-GS | 3 | 1940–1941 | 1958–1967 | |
| GE U23B | 23-GRS | 5 | 1973 | 1984–1985 | |
| GE U25B | 25-GRS | 12 | 1965 | 1966 (1), 1984 (11) | One unit wrecked at Whitman, Minnesota in 1966 |
| GE U28B | 28-GRS | 12 | 1966 | 1984 | |
| GE U30B | 30-GRS | 10 | 1966–68 | 1980 (1), 1984 (9) | |
| GE U30C | 30-GRS-6 | 8 | 1974 | 1985 | |
| GE U33C | 33-GRS-6 | 4 | 1968 | 1980 (1), 1982 (3) | |
| GE U36C | 36-GRS-6 | 4 | 1972 | 1984–1985 | |

### Whitcomb

| Image | Model | Milwaukee class | Quantity | Built | Retired | Notes |
| | Whitcomb 44-ton (B-B) | 3.8-WS | 7 | 1940–1941 | 1941 (1), 1954–68 | 380 hp, 1 sold to Purdue University in 1941 |
| | Whitcomb 80-ton (1D1) | 6.5-WS | 2 | 1929-30 | 1944 | built as 300 hp gas-electric, rebuilt to 650 hp diesel-electric in 1941; sold to US Government 1944 |

## Electric

The Milwaukee Road was one of the most electrified railroads in the United States. The system used was 3,000 volt DC overhead line.

### Switchers

* Milwaukee Road class ES-1 - 1 example (built 1915), the Great Falls, Montana switcher. Used 1,500 volts DC.
* Milwaukee Road class ES-2 - 4 examples (built 1916–19).

### Passenger

* Milwaukee Road class EP-1 - 12 2-unit boxcab sets (24 locomotives) built in 1915 by ALCO/GE. Converted to freight class EF-1 in 1920. In 1950, two boxcab two-unit sets were converted for passenger service (class EP-1A).
* Milwaukee Road class EP-2 - The "Bi-Polars". 5 built by GE in 1919.
* Milwaukee Road class EP-3 - The "Quills" (quill drive). 10 built by Baldwin/Westinghouse in 1919.
* Milwaukee Road class EP-4 - "Little Joes". Two examples built by GE in 1946. Converted to freight class EF-4 in 1956.

### Freight

* Milwaukee Road class EF-1 - 30 two-unit boxcab sets (60 locomotives) built in 1915 by ALCO/GE, identical to EP-1 but for gearing and paint. In addition, the EP-1 units were converted to EF-1 specification in 1920.
* Milwaukee Road class EF-2 - 3-unit boxcab sets formed from EF-1s in the 1930s.
* Milwaukee Road class EF-3 - 3-unit boxcab sets formed from EF-1s with the middle unit shortened by removing the cab and leading truck; the resultant B units were known as "bobtails".
* Milwaukee Road class EF-4 - "Little Joes". 10 examples built by GE in 1946 for the Soviet Ministry of Railways as Class A. In addition, the EP-4 locomotives were converted to EF-4 specification in 1956.
* Milwaukee Road class EF-5 - Four-unit boxcab sets formed with any combination of regular or bobtail units in the middle.

## Rebuilds
### Rebuilt EMD

| Image | Model | Milwaukee class | Rebuilder | Total rebuilt | Rebuild date | Retired | Notes | Refs. |
| | GP20m | 17.5-ERS-6 | Milwaukee Road's Milwaukee shops | 50 | June 1969 – October 1973 | | | |
| | SD10 | 18-ERS-6 | Milwaukee Road's West Milwaukee shops | 21 | March 1974 – January 1976 | | | |

## Preserved locomotives
### Steam

Only six Milwaukee Road steam locomotives survive:
| MILW No. | Class | Type | Manufacturer | Serial No. | Date | Notes |
| 111 | — | 4-4-0 | Breese, Kneeland, and Company | 73 | May 1857 | Ex-Milwaukee & Mississippi No. 40 Spring Green; sold in 1889, became El Paso & Southwestern Railroad No. 1 |
| 261 | S3 | 4-8-4 | American Locomotive Company | 71974 | July 1944 | |
| 265 | S3 | 4-8-4 | American Locomotive Company | 71978 | July 1944 | On Display at the Illinois Railway Museum, Union, Illinois |
| 1057 | J2-a | 0-4-0 | Milwaukee Shops | — | 1885 | Originally No. 37, renumbered 58 in 1898, then 1057 in 1899. |
| 1004 | G8 | 4-6-0 | Milwaukee Road (r/b) | 19543 | September 1920 | Rebuilt from class B4 no. 4335 (Baldwin 19543 of 1901) and numbered 2404; renumbered 1004 in 1938 |
| 1416 | I5-a | 0-6-0 | Milwaukee Shops | — | April 1908 | Originally 1207, renumbered 1416 in 1938; at EMTRAC in Evansville, Indiana. |
In addition, the tender from a class S2 locomotive also survives in Ingomar, Montana.

### Diesel

| MILW No. | Model | Class | Manufacturer | Rebuilder | Serial No. | Build date | Rebuild date | Current status |
| 532 | SD10 | 18-ERS-6 | General Motors Electro-Motive Division (EMD) | Milwaukee Road's West Milwaukee shops | 18780 | February 1954 | October 1975 | Operational; Whitewater Valley Scenic Railroad at Connersville, Indiana |
| 988 | RSC-2 | 15-ARS | American Locomotive Company | Not rebuilt | 75135 | January 1947 | Not rebuilt | On static display; Mid-Continent Railway Museum at North Freedom, Wisconsin |
| 760 | H10-44 | | Fairbanks Morse | | | 1944 | | On Display at the Illinois Railway Museum, Union, Illinois |
| 1603 | HH-660 | | American Locomotive Company | | | 1939 | | On Display at the Illinois Railway Museum, Union, Illinois |
| 5056 | U25B | | General Electric | | | 1965 | | On Display at the Illinois Railway Museum, Union, Illinois |
| 104C | FP7A | | General Motors Electro-Motive Division (EMD) | | | 1952 | | On Display at the Illinois Railway Museum, Union, Illinois |
| 118C | F7A | | General Motors Electro-Motive Division (EMD) | | | 1951 | | On Display at the Illinois Railway Museum, Union, Illinois |
| 33C | E9A | | General Motors Electro-Motive Division (EMD) | | | 1956 | | On Display at the Illinois Railway Museum, Union, Illinois |
| 37A | E9A | | General Motors Electro-Motive Division (EMD) | | | 1961 | | On Display at the Illinois Railway Museum, Union, Illinois |
| 96B | F7B | | General Motors Electro-Motive Division (EMD) | | | 1951 | | On Display at the Illinois Railway Museum, Union, Illinois |

### Electric

* 10200A+B, later E50A+B - class EF-1 at the Lake Superior Railroad Museum in Duluth, Minnesota
* 10211B, later E57B - class ES-3 at Harlowton, Montana
* 10251, later E2 - class EP-2, at the National Museum of Transportation in St. Louis, Missouri
* E70 - class EF-4 at Deer Lodge, Montana