In the 1970s the main locomotives working the Cambridge Branch were diesels of the classes DI, DB and DSC. By the 1980s and through the 1990s until the Hautapu-Cambridge sections closure, the majority of trains were pulled by DBR class engines. At various times a small shunting engine of the class TR was used to perform various shunting duties and was housed in the Goods Shed at Cambridge. All trains that currently use the line to Hautapu are DBR or DC hauled.
