In this year, 80 years after 1922, Kubota's total engine production volume reached 20 million units.

This was the result of constant efforts made to tackle difficult issues in order to address diverse demands and meet expectations. Through the accumulation of these efforts and the results of collaboration between its various divisions including design, casting, and manufacturing, Kubota has acquired a high level of technological capability and created unique manufacturing processes.

In response to the increasing awareness of global environmental conservation, Kubota became compliant with the California Air Resources Board's (CARB) Tier 4 nonroad diesel emission regulations (56–130 kW class).

Kubota was the first in the world to receive certification for meeting the regulations for industrial diesel engines of 4 liters or less.

Kubota employs various technology to respond to strict regulations aimed at reducing suspended particulate matter, such as soot contained in exhaust gas, to 1/10 or less of current levels. Such technology includes DPFs (Diesel Particulate Filters), which collect particulate matter contained in diesel engine exhaust gas, as well as common-rail systems which finely control fuel injection via computer, and EGR (exhaust gas recirculation) systems which reduce NOx emissions by returning and mixing a portion of exhaust gases into the new intake air drawn into the engine in order to lower combustion temperatures.

While maintaining the compact design and other features of current models, new model meet regulations, while also featuring improvements such as enhanced output and reduced noise.

Kubota Engine (Wuxi) Co., Ltd. was established to produce vertical diesel engines in China in response to the significant anticipated increase in demand for engines used in agricultural machinery, construction machinery, and industrial machinery in expanding Asian markets , China in particular.

Not only did Kubota increase supply capacity for these growing markets, but it also improved cost competitiveness by increasing the ratio of overseas production and reducing risks from exchange rate fluctuations, with the aim of further expansion and development of its engine business.

Kubota's gasoline and gas engines share the same platform with the company's industrial diesel engines, which enables customers to switch from diesel engines to gasoline or gas engines.
Fuel types can be selected easily to minimize development costs.

With a wide range of products, Kubota supports the product development and design of customers around the world who need to comply with emission regulations, not only in Europe, but also in other regions with different regulations.

Kubota is one of the most experienced DPF nonroad engine manufacturers in the global market for engines under 75 kW (100 hp).

DPF stands for "Diesel Particulate Filter," and refers to filters that collect and reduce particulate matter (PM) in diesel engine emissions.

Kubota has always been able to meet the strict emission regulations set by countries around the world. In particular, we were among the first to develop and produce engines equipped with DPFs for use in harsh environmental conditions, and we have realized engines that can meet stringent regulations.

In 2017, Kubota announced the V5009 to expand its lineup to the 200-horsepower range.

The V5009 was awarded "Diesel of the Year."

The "Diesel of the Year" award was established in 2006 and is organized by the Italian industry magazine Powertrain. It is one of the most prestigious awards for diesel engine manufacturers.

As European and American engine manufacturers have successively won the award, Kubota was the first engine manufacturer headquartered outside those regions to win this prize.

Kubota aims to break into the field crop market by increasing the size and horsepower of its tractors, in addition to maintaining compliance with increasingly stringent emission regulations.

Kubota is able to develop larger and higher horsepower engines while still complying with regulations thanks to the company's technical prowess in areas ranging from electronics to chemistry, as well as its engine technology.

Kubota will continue to take on the challenge of being a leading manufacturer of engines that are indispensable to industry.

In 2021, Kubota developed the D902-K (displacement: 0.898 L), an electronically controlled diesel engine in the sub 19-kw output class.

It is equipped with a unique common-rail system developed specifically for small engines, and uses Kubota's original combustion system, the new TVCR combustion system.

This combination reduces black smoke emissions to an imperceptible level during start-up, acceleration, and sudden load.

Furthermore, it realizes low fuel consumption while maintaining its compact size and operability.

In addition to complying with EPA Tier 4 in North America, Stage V in Europe, and China Stage 4, it can also comply with China Smoke III, a regulation targeting vehicles.