Previously, a carriage train known as the Northland Express (or the Opua Express) had run from Auckland to Opua with connections to Okaihau via the mixed trains, but with the change of the northern terminus to Ōkaihau, the branch increased in importance. This proved to be short-lived; in July 1967 the very popular railcar service was withdrawn due to mechanical problems plaguing the railcars. Passengers had to use the mixed trains, with significantly older rolling stock on a slower schedule, and demand slipped. The branch closed to passengers on 21 June 1976.