Isuzu Motors Ltd. Isuzu Motors Ltd. (Japanese: いすゞ自動車株式会社, Hepburn: Isuzu Jidōsha Kabushiki-Kaisha, TYO: 7202), trading as Isuzu (Japanese pronunciation: [isɨᵝzɨᵝ], /iˈsuːzuː/), is a Japanese commercial vehicle and diesel engine manufacturing company headquartered in Tokyo.