每节机车装有两组完全相同的900马力柴油发电机组,采用两台温顿发动机公司的12-201A型二冲程柴油机。每节机车的电传动系统由两台D4型直流牵引发电机和四台D7型直流牵引电动机组成,A节机车还设有电阻制动装置。每节机车均采用A1A-A1A轴式配置,走行部为两台布贝格式三轴转向架,转向架的中间轴没有牵引电动机。这种转向架由工程师马丁·布贝格(英语:Martin P. Blomberg)设计,车体重量通过中心销、摇枕、构架等部件由两台转向架承担,这种转向架以后成为了易安迪E系列、F系列柴油机车的标准转向架。机车上还搭载了为旅客列车供暖的蒸汽锅炉。
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