Isuzu Motor Ltd. is a Japanese commercial vehicle manufacturing company that's the primary market focus is on commercial diesel-powered buses, trucks, and construction. In 1967, Isuzu Motors Ltd. introduced a large rear-engine type bus. The large range of Isuzu Buses includes Isuzu Bu-series, Isuzu C, Isuzu Cubic, Isuzu Erga, Isuzu Gala, and Isuzu Super Cruiser. The Isuzu Bu-series is a series of full-size buses, which was produced from 1962 to 1980. The direct-injection engine (D920H) became the most popular engine in the Isuzu Bu-series bus variants as standard.

The Isuzu C is also a heavy-duty bus from Isuzu Motors that was produced from 1980 to 1984. It was available as the city bus range. The successor of Isuzu C was the Isuzu Cubic, which was a single-decker bus built between 1984 to 2000. The range was primarily available as a city bus, either a bus chassis or a complete bus. The one-step and two-step versions were considered as step-entrance buses, while the Non-step version was considered as low-floor buses. It is the successor to the Isuzu Erga that is also a single-decker heavy-duty bus since 2000. The range is available as a public bus in either a complete bus or a bus chassis. It is completely different from the Isuzu Cubic in styling. The Isuzu Gala is a rigid tourist coach since 1996. The first generation range was available both with right-hand drive and left-hand drive. The Isuzu Super Cruiser is also a heavy-duty coach that was available as a tourist coach.