1,500 Horsepower -- Built 1950-1958 by EMD - LaGrange, Illinois and London, Ontario
Existing Roster
| 4100 | 4101 | 4102 | 4103 | 4104 | 4105 | 4106 | 4107 | 4108 | 4109 |
| 4110 | 4113 | 4114 | 4116 | 4117 | 4118 | ||||
| 4120 | 4121 | 4122 | 4123 | 4124 | 4125 | 4126 | 4127 | 4128 | |
| 4130 | 4131 | 4132 | 4134 | 4135 | 4136 | 4137 | 4138 | ||
| 4140 | 4141 | 4142 | 4143 | 4144 | 4145 | 4148 | 4149 | ||
| 4150 | 4152 | 4153 | 4154 | 4155 | 4156 | 4157 | |||
| 4160 | 4161 | 4162 | 4163 | 4164 | 4165 | 4168 | 4169 | ||
| 4170 | 4174 | 4175 | 4176 | 4178 | 4179 | ||||
| 4180 | 4181 | 4182 | 4183 | 4184 | 4186 | 4187 | |||
| 4190 | 4191 | 4192 | 4193 | 4194 | 4195 | 4197 | 4198 | 4199 | |
| 4200 | 4201 | 4202 | 4203 | 4205 | 4206 | 4207 | 4208 | 4209 |
| 4307 | 4314 | 4322 | 4324 | 4328 | 4331 | 4333 | 4344 | 4457 |