The largest share of Kubota's engines are vertical water-cooled engines up to 100 horsepower, with the exception of the OC series, which is oil-cooled, and the EA series, which has a horizontally mounted piston. Some engine series have a choice of fuel injection system: indirect injection (IDI), direct injection (DI) or common rail (CR).
The series represents single-cylinder engines in horizontal and vertical versions which have been installed in various applications for more than 30 years and provide European Stage V regulation.
The series presents two and more cylindrical water-cooled motors from 9.9 kW to 18.5 kW which are known for its compact dimensions and comply with European Stage V regulations.
This series includes engines from 18.5 kW onwards and what they are designed primarily for light to medium applications. Most often, these engines are installed in small tractors and excavators, utility vehicles, mowers and power generators. They are within this series some Stage V compliant engines.
This series of engines is the most popular choice of various manufacturers after world and is used in agriculture, construction, refrigeration and other industries.
Kubota's engineers redesigned the engine block for this series which is larger in volume but equal in dimensions to 2.4 liters and se used for a wide range of industrial applications.
In this series of engines there are plenty options available. Naturally aspirated or turbocharged, direct or indirect injected fuel or system with common rail is an option. Engines can be mechanically controlled and achieve Stage II and Stage IIA regulations or electronically controlled which belong to the Stage IIIB or Stage IV emission class.