An eight-tonner, this was considerably larger than existing Japanese trucks which had rarely been built for more than 6 tonnes (13,200 lb) payload.

[1] The model became a common sight in Japan and in Southeast Asia, its main export market, before being retired in 1968 in favor of the more modern cab over trucks which succeeded it.

In June 1956 the TA10 appeared, a model with a shorter wheelbase for increased maneuverability and with a slightly lower, 7.5 tonnes (16,500 lb) payload.

In September 1958 the cab over TC model was introduced; this shared a lot of parts with the TH range but had a 10 tonnes (22,000 lb) payload.

[9] Manufacture was carried out by MADI (Myanmar Automobile and Diesel Engine Industries) in the "No 2 Automobile Industry" plant in the small town of Tonbo, at Kwinhla Station, Pandaung Township, Bago Division (just north of Yangon), where MADI also assembled the Mazda Pathfinder and the DS-70 engine for the trucks.

Around the time of the ZH's introduction, the Z-series also switched from semaphore indicators to turn signals, subsequent to a change in the laws.