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Kubota History Kubota History

Kubota History

  • History of Vertical Water-cooled Diesel Engine
  • History of Horizontal Water-cooled Diesel Engine
  • History of Electronic ignition Engine
1922
Start production of the horizontal type water-cooled kerosene engine "A" for agricultural use at the Funade-cho plant
1931
Start production of diesel engines for land use
1937
Establishment of the Sakai Plant for the exclusive production of engines
1950
Start production of the first horizontal type water-cooled diesel engine (HD5,HD8,HD10)
1953
The multi-purpose KND 8 won the Minister of International Trade and Industry Award at The Compact Multi-purpose Inner Combustion Engine Comparison Contest
1956
Start production of air-cooled gasoline engine (AK2: Tailored Use, Multi-purpose)
1958
Start production of horizontal type diesel engine with radiator - KNDR5
Start production of 2-cycle horizontal type diesel VA, VC
1959
Start production of water-cooled vertical type diesel engine (UH)
Start production of air-cooled 4-cycle gasoline engine
1972
Establishment of Kubota Indonesia (Present day PTKI)
1975
Establishment of the Tsukuba Plant
Development of the GN series
1976
Development of the E-Series horizontal type diesel series (the birth of Kubota's original TVCS system)
1978
Establishment of The Siam Kubota Industry Co., Ltd. (Thailand)
1981
Establishment of Kubota Engine Division

First kerosene engine produced

water-cooled vertical type diesel engine,UH3

1982
Establishment of Kubota Engine Sales&Service Co,Ltd..
Development of the direct-injection type compact diesel engine
1983
Development of the world's first 82mm stroke, less than 500cc per cylinder, water-cooled multi-cylinder direct-injection diesel engine
Development of the world's smallest, 62.2mm stroke, 200cc per cylinder, multi-cylinder diesel engine series, Super Mini
1984
Development of the EA engine series
Development of DG1402 water-cooled gas engine
Development of the air-cooled gasoline generator, NA series
1985
Establishment of the Sakai Rinkai Plant for the exclusive production of engines
1987
Achievement of the 10 million accumulated engine production unit
Development of the super OHV air-cooled gasoline engine series
Development of the Super Five Series diesel engines (equipped with the New TVCS combustion system which has improved the output, fuel efficiency, and emissions)
1988
Development of the oil/air- cooled diesel engines OC52 and OC62
Development of the New Super Mini 68mm stroke series diesel engines
1990
Development of the Super Three 92.4mm stroke series diesel engines
1993
D1105-E diesel engine, equipped with E-TVCS, became the world’s first off-road engine under 25 HP to pass the CARB ULGE (California Air Resources Board’s Utility, Lawn & Garden Equipment Engines) emission regulations

Super Mini Series

Celebrating the 10 millionth engine at Sakai Rinkai Plant

Super OHV gasoline engine

Super Five diesel engine

Super ACTV oil/air-cooled diesel engine

1994
Sakai Rinkai Plant, Tsukuba Plant, and Sakai Plant all earned the Certification of the Quality Management System ISO9002
1995
Start production of engines in compliance with the CARB regulations
1996
Start production of engines in compliance with the Japanese MOC (formerly known as the Ministry of Construction;
currently the Ministry of Land, Infrastructure and Transport) regulations
1997
Development of the 110mm stroke series (V3300, V3300-T, V3300-TI)
Establishment of Kubota Engine America Corporation.
Tsukuba Plant earned the Certification of the Environmental Management System ISO14001
Development of the dual-fuel engine, DF750
1999
Establishment of the Engine Research & Development Facility, and Quality Inspection Facility within the Sakai Rinkai Plant
Start production of engines in compliance with the U.S. E.P.A. (Environment Protection Agency)
2000
Sakai Rinkai Plant and Sakai Plant earned the Certification of the Environmental Management System ISO14001
Development of the 102.4mm stroke series 03M diesel engine
Development of the 110mm stroke 4-valve direct-injection (E-CDIS) series (V3300DI, V3300DI-T)
Development of the C-OHV gasoline engines GR130, GR170, and GR250
Development of the water-cooled, 2-cylinder OHC type GZ engine series
2001
Development of the water-cooled gasoline and dual (gasoline/LP gas) fuel engines in compliance with the U.S. LSI emission regulations
2002
The 80th anniversary is celebrated from a start of production.
Achievement of the 20 million accumulated engine production units.
2003
Start emission regulation for LEMA (below 19 kW SI engine).
Development of the New Super Mini 73.6mm stroke series diesel engines(Z602,D902).
Development of the dual-fuel engine,DF972.
Development of the 120mm stroke series(V3800,V3800DI-T).

Vertical type water-cooled 110mm stroke direct-injection diesel engine, V3300DI

Air-cooled slant cylinder OHV gasoline engine, GR170-G

Water-cooled gasoline and dual (gasoline/LP gas) fuel engines (WG/DF1005)

2005
Start production of V3007-DI/V3307-DI
2006
Start emission regulation for LEMA Tier1(below 19 kW CI engine)
Start production of D1305
2008
Establishment of Kubota Engine (SHANGHAI) Co.,Ltd..
Start production of V2607-DI
Start production of V6108
2009
Start emission regulation for LEMA Tier2(below 19 kW CI engine)
2011
Establishment of Kubota Engine (Thailand) Co.,Ltd..
Achievement of the 25 million accumulated engine production units.
Achievement of the 10 million accumulated diesel engine production units.
Kubota diesel engines between 56 and 130 kW the first in the world to receive certification for CARB Tier4 Interim emission regulations.
Start production of WG series dual fuel engines
2012
TOWARD100 The 90th anniversary is celebrated from a start of production.
Start emission regulations for EPA Interim Tier4 and EU Stage ⅢB(56-130 kW).
Start production of V3 series engines in compliance with the EPA/CARB Tier4 Interim, EU Stage ⅢB emissions standards.
Start production of V6108 in compliance with the EPA/CARB Tier4 Interim, EU Stage ⅢB emissions standards.
Start production in Kubota engine (Thailand) Co.,Ltd..
Kubota diesel engines between 19 and 56 kW to receive certification for CARB Tier4 emission regulations.
Establishment of Kubota Engine (WUXI) Co.,Ltd..
2013
Start emission regulations for EPA/CARB Tier4(19-56 kW) and EU Stage ⅢB(37-56 kW).
Start production of Kubota 07 series engines in compliance with the EPA/CARB Tier4, EU Stage ⅢB emissions standards.
Start production of Kubota 03 series engines in compliance with the EPA/CARB Tier4, EU Stage ⅢB emissions standards.
Start production of Kubota 05 series engines in compliance with the EPA/CARB Tier4 emissions standards.
2014
Start production in Kubota Engine (WUXI) Co.,Ltd..
Expands Diesel Engine Line-Up by Adding New Diesel Oxidation Catalyst (DOC) Only Option in compliance of EPA/CARB Tier4 (19-56 kW)
Kubota diesel engines between 56 and 130 kW to receive certification for EPA/CARB Tier4, EU Stage IV emission regulations.
2015
Start emission regulation for EPA Tier4(56 kW~)
Start production of diesel engines between 56 and 130 kW in compliance with EPA/CARB Tier4, EU Stage IV emission standards.
Start production of WG3800

Vertical type water-cooled diesel engine V3307-DI-T-E3B

Vertical type water-cooled diesel engine D1305-E3B

Vertical type water-cooled diesel engine V2607-DI-E3B

Vertical type water-cooled diesel engine V6108-TI

Dual fuel engine WG1605-GL-E3B

Vertical type water-cooled diesel engine V3800-CR-TE4

Vertical type water-cooled diesel engine V6108

Vertical type water-cooled diesel engine V2607-CR-TE4

Vertical type water-cooled diesel engine V2403-CR-TE4

WG3800-E3B

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