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Kubota Spark Ignited (SI) Engines
- NSM Series
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- 05 Series
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- 03 Series
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- V3 Series
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The essential appeal of Kubota engines lies in their ability to address a wide scope of uses, while rising to the stiffest of challenges. Simply stated, the true charisma of Kubota engines, which are at the global cutting edge for small-size industrial diesel engines, comes from the sophisticated combination of high power density, onboard interchangeability, and multi-fuel drive. Adding to this their ability to satisfy multiple emissions standards in both developing and industrialized nations, Kubota engines offer solutions to the difficult issues faced by customers representing diversified uses and regions. With various specs positioned for both in-house mounting and external sales on the strength of models responding to the inevitably wide variety of market needs, Kubota fields a lineup that dramatically expands customer options. Series are supplied across six different models, ranging in displacement from a minimum of 479 cc to a maximum of 6,100 cc (in-house mounting only), and in output from 4.1 to 157.3 kilowatts. Besides examples of in-house mounting on tractors, combines, generators and other products, there are also extensive examples of mounting when it comes to other brands as well. That long list begins with their mainstay agricultural machinery, while going on to include backhoes, aerial work platforms, skid-steer loaders, dampers, utility vehicles, riding lawn mowers, sweepers, wood chippers, power generators, refrigeration equipment, forklifts, telehandlers, power generators for motor homes, mobile floodlights, scissor lifts and numerous other uses.
Key Features
- Ranging from 479 cc to 6,100 cc
- Outputs range from 4.1 to 157.3 kilowatts
- Can be mounted to all brands
About Kubota Spark Ignited (SI) Engines
Gasline, LPG, Natural Gas – Spark Ignited (SI)
NSM Series
WG972-G-E4
Emissions
Kubota’s WG972-G-E4 of the Kubota spark ignited (SI) engines range has been designed to comply with EPA Phase 3 / CARB Phase 4.
Fuel Flexibility
The installation compatibility that exists between Spark-Ignition engines (SI) and Compression-Ignition engines (CI) is convenient for customers who need fuel flexibility for their products. The Kubota WG972 includes gasoline, LPG, and natural gas versions, as well as a dual fuel (gasoline and LPG) version.
Durability and Reliability
Kubota’s WG972 SI engines are designed after the Kubota Super Mini Series diesel (CI) engines, which are known worldwide as reliable industrial engines. The WG972 of the Kubota spark ignited (SI) engines series offers very low vibration and extremely low noise.
Length x Width x Height
434 x 392 x 503 mm (17.1 x 15.4 x 19.8 in)
Dry weight
74 kg
Rated output / speed
24.2kW (32.5HP) / 3600 rpm
WG972-GL-E4
Emissions
The WG972-GL-E4 of the Kubota spark ignited (SI) engines range has been designed to comply with EPA Phase 3 / CARB Phase 4 and EU Stage V.
Fuel Flexibility
The installation compatibility that exists between Spark-Ignition engines (SI) and Compression-Ignition engines (CI) is convenient for customers who need fuel flexibility for their products. The Kubota WG972 includes gasoline, LPG, and natural gas versions, as well as a dual fuel (gasoline and LPG) version.
Durability and Reliability
Kubota’s WG972 SI engines are designed after the Kubota Super Mini Series diesel (CI) engines, which are known worldwide as reliable industrial engines. The WG972 engine offers very low vibration and extremely low noise.
Length x Width x Height
496 x 392 x 503 mm (19.5 x 15.4 x 19.8 in)
Dry weight
78 kg
Rated output / speed
23.2kW (31.1HP) / 3600 rpm
WG972-L-E4
Emissions
Kubota’s WG972-L-E4 engine has been designed to comply with EPA Phase 3 / CARB Phase 4.
Fuel Flexibility
The installation compatibility that exists between Spark-Ignition engines (SI) and Compression-Ignition engines (CI) is convenient for customers who need fuel flexibility for their products. The Kubota WG972 includes gasoline, LPG, and natural gas versions, as well as a dual fuel (gasoline and LPG) version.
Durability and Reliability
Kubota’s WG972 SI engines are designed after the Kubota Super Mini Series diesel (CI) engines, which are known worldwide as reliable industrial engines. The WG972 engine offers very low vibration and extremely low noise.
Length x Width x Height
496 x 392 x 503 mm (19.5 x 15.4 x 19.8 in)
Dry weight
77 kg
Rated output / speed
22.0kW (29.5HP) / 3600 rpm
WG972-N-E4
Emissions
The WG972-N-E4 of the Kubota spark ignited (SI) engines range has been designed to comply with EPA Phase 3 / CARB Phase 4.
Fuel Flexibility
The installation compatibility that exists between Spark-Ignition engines (SI) and Compression-Ignition engines (CI) is convenient for customers who need fuel flexibility for their products. The Kubota WG972 includes gasoline, LPG, and natural gas versions, as well as a dual fuel (gasoline and LPG) version.
Durability and Reliability
Kubota’s WG972 SI engines are designed after the Kubota Super Mini Series diesel (CI) engines, which are known worldwide as reliable industrial engines. The WG972 engine offers very low vibration and extremely low noise.
Length x Width x Height
496 x 392 x 503 mm (19.5 x 15.4 x 19.8 in)
Dry weight
77 kg
Rated output / speed
20.4kW (27.4HP) / 3600 rpm
05 Series
WG1605-G-E3
Emissions
The WG1605-G-E3 of the Kubota spark ignited (SI) engines series has been designed to comply with EPA Tier 2 / CARB Tier 3.
Fuel Flexibility
The installation compatibility that exists between Spark-Ignition engines (SI) and Compression-Ignition engines (CI) is convenient for customers who need fuel flexibility for their products. The Kubota WG1605 includes gasoline, LPG, and natural gas versions, as well as dual and multiple fuel versions. Options include gasoline and LPG, LPG and natural gas, and gasoline, LPG and natural gas.
Durability and Reliability
Kubota’s WG1605 SI engines are designed after Kubota 05 Series diesel (CI) engines and offer performance similar to our turbo diesel engines, which are known worldwide as reliable industrial engines. The WG1605 engine offers very low vibration and extremely low noise.
Length x Width x Height
566 x 459 x 692 mm (22.3 x 18.1 x 27.2 in)
Dry weight
120 kg
Rated output / speed
42.5kW (57.0HP) / 3600 rpm
WG1605-GL-E3
Emissions
Kubota’s WG1605-GL-E3 engine has been designed to comply with EPA Tier 2 / CARB Tier 3 and EU Stage V.
Fuel Flexibility
The installation compatibility that exists between Spark-Ignition engines (SI) and Compression-Ignition engines (CI) is convenient for customers who need fuel flexibility for their products. The Kubota WG1605 includes gasoline, LPG, and natural gas versions, as well as dual and multiple fuel versions. Options include gasoline and LPG, LPG and natural gas, and gasoline, LPG and natural gas.
Durability and Reliability
Kubota’s WG1605 SI engines are designed after Kubota 05 Series diesel (CI) engines and offer performance similar to our turbo diesel engines, which are known worldwide as reliable industrial engines. The WG1605 engine offers very low vibration and extremely low noise.
Length x Width x Height
566 x 459 x 692 mm (22.3 x 18.1 x 27.2 in)
Dry weight
122 kg
Rated output / speed
42.5kW (57.0HP) / 3600 rpm
WG1605-L-E3
Emissions
The WG1605-L-E3 of the Kubota spark ignited (SI) engines series has been designed to comply with EPA Tier 2 / CARB Tier 3.
Fuel Flexibility
The installation compatibility that exists between Spark-Ignition engines (SI) and Compression-Ignition engines (CI) is convenient for customers who need fuel flexibility for their products. The Kubota WG1605 includes gasoline, LPG, and natural gas versions, as well as dual and multiple fuel versions. Options include gasoline and LPG, LPG and natural gas, and gasoline, LPG and natural gas.
Durability and Reliability
Kubota’s WG1605 SI engines are designed after Kubota 05 Series diesel (CI) engines and offer performance similar to our turbo diesel engines, which are known worldwide as reliable industrial engines. The WG1605 engine offers very low vibration and extremely low noise.
Length x Width x Height
566 x 459 x 692 mm (22.3 x 18.1 x 27.2 in)
Dry weight
121 kg
Rated output / speed
41.0kW (55.0HP) / 3600 rpm
WG1605-N-E3
Emissions
Kubota’s WG1605-N-E3 engine has been designed to comply with EPA Tier 2 / CARB Tier 3.
Fuel Flexibility
The installation compatibility that exists between Spark-Ignition engines (SI) and Compression-Ignition engines (CI) is convenient for customers who need fuel flexibility for their products. The Kubota WG1605 includes gasoline, LPG, and natural gas versions, as well as dual and multiple fuel versions. Options include gasoline and LPG, LPG and natural gas, and gasoline, LPG and natural gas.
Durability and Reliability
Kubota’s WG1605 SI engines are designed after Kubota 05 Series diesel (CI) engines and offer performance similar to our turbo diesel engines, which are known worldwide as reliable industrial engines. The WG1605 engine offers very low vibration and extremely low noise.
Length x Width x Height
566 x 459 x 692 mm (22.3 x 18.1 x 27.2 in)
Dry weight
121 kg
Rated output / speed
38.4kW (51.5HP) / 3600 rpm
WG1605-GLN-E3
Emissions
The WG1605-GLN-E3 of the Kubota spark ignited (SI) engines range has been designed to comply with EPA Tier 2 / CARB Tier 3 and EU Stage V.
Fuel Flexibility
The installation compatibility that exists between Spark-Ignition engines (SI) and Compression-Ignition engines (CI) is convenient for customers who need fuel flexibility for their products. The Kubota WG1605 includes gasoline, LPG, and natural gas versions, as well as dual and multiple fuel versions. Options include gasoline and LPG, LPG and natural gas, and gasoline, LPG and natural gas.
Durability and Reliability
Kubota’s WG1605 SI engines are designed after Kubota 05 Series diesel (CI) engines and offer performance similar to our turbo diesel engines, which are known worldwide as reliable industrial engines. The WG1605 engine offers very low vibration and extremely low noise.
Length x Width x Height
566 x 459 x 692 mm (22.3 x 18.1 x 27.2 in)
Dry weight
122 kg
Rated output / speed
41.0kW (55.0HP) / 3600 rpm
WG1605-LN-E3
Emissions
Kubota’s WG1605-LN-E3 engine has been designed to comply with EPA Tier 2 / CARB Tier 3 and EU Stage V.
Fuel Flexibility
The installation compatibility that exists between Spark-Ignition engines (SI) and Compression-Ignition engines (CI) is convenient for customers who need fuel flexibility for their products. The Kubota WG1605 includes gasoline, LPG, and natural gas versions, as well as dual and multiple fuel versions. Options include gasoline and LPG, LPG and natural gas, and gasoline, LPG and natural gas.
Durability and Reliability
Kubota’s WG1605 SI engines are designed after Kubota 05 Series diesel (CI) engines and offer performance similar to our turbo diesel engines, which are known worldwide as reliable industrial engines. The WG1605 engine offers very low vibration and extremely low noise.
Length x Width x Height
566 x 459 x 692 mm (22.3 x 18.1 x 27.2 in)
Dry weight
121 kg
Rated output / speed
41.0kW (55.0HP) / 3600 rpm
03 Series
WG1903-G-E3
Emissions
The WG1605-G-E3 of the Kubota spark ignited (SI) engines range has been designed to comply with EPA Tier 2 / CARB Tier 3.
Fuel Flexibility
The installation compatibility that exists between Spark-Ignition engines (SI) and Compression-Ignition engines (CI) is convenient for customers who need fuel flexibility for their products. The Kubota WG1605 includes gasoline, LPG, and natural gas versions, as well as dual and multiple fuel versions. Options include gasoline and LPG, LPG and natural gas, and gasoline, LPG and natural gas.
Durability and Reliability
Kubota’s WG1605 SI engines are designed after Kubota 05 Series diesel (CI) engines and offer performance similar to our turbo diesel engines, which are known worldwide as reliable industrial engines. The WG1605 engine offers very low vibration and extremely low noise.
Length x Width x Height
566 x 459 x 692 mm (22.3 x 18.1 x 27.2 in)
Dry weight
120 kg
Rated output / speed
42.5kW (57.0HP) / 3600 rpm
WG1903-GL-E3
WG1903-L-LM
Emissions
Kubota’s WG1903-L-LM engine has been designed to comply with EPA Tier 2 / CARB Tier 3 + EU Stage V.
Fuel Flexibility
The installation compatibility that exists between Spark-Ignition engines (SI) and Compression-Ignition engines (CI) is convenient for customers who need fuel flexibility for their products. The Kubota WG1903 includes gasoline, LPG, and natural gas versions, as well as dual fuel (gasoline and LPG) version.
Durability and Reliability
Kubota WG1903 SI engines are designed after Kubota 03 Series diesel (CI) engines. While keeping the same footprint as the D1803 diesel engines, they offer performance similar to that of our turbo diesel engines, which are known worldwide as reliable industrial engines.
The Kubota WG1903 engine offers very low vibration and extremely low noise as well.
Optimum Total Cost of Ownership
Total cost of ownership will be optimized with long maintenance interval enabled with Hydraulic Lash Adjuster (HLA) and auto-belt tensioners.
Length x Width x Height
551 × 549 × 716 mm (21.7 × 21.6 × 28.2 in)
Dry weight
172 kg
Rated output / speed
32.6kW (43.7HP) / 2400 rpm
WG2503-G-E3
Emissions
Kubota’s WG2503-GL-E3 engine has been designed to comply with EPA Tier 2 / CARB Tier 3.
Fuel Flexibility
The installation compatibility that exists between Spark-Ignition engines (SI) and Compression-Ignition engines (CI) is convenient for customers who need fuel flexibility for their products. The Kubota WG2503 includes gasoline, LPG, and natural gas versions, as well as a dual fuel (gasoline and LPG) version.
Durability and Reliability
Kubota’s WG2503 SI engines are designed after Kubota 03 Series diesel (CI) engines. While keeping the same footprint as the V2403 diesel, they offer performance similar to that of our turbo diesel engines, which are known worldwide as reliable industrial engines. The WG2503 engine offers very low vibration and extremely low noise.
Length x Width x Height
646 x 509 x 761 mm (25.4 x 20.0 x 30.0 in)
Dry weight
195 kg
Rated output / speed
45.5 kW (61.0HP) / 2700 rpm
WG2503-GL-E3
Emissions
Kubota’s WG2503-GL-E3 engine has been designed to comply with EPA Tier 2 / CARB Tier 3 and EU Stage V.
Fuel Flexibility
The installation compatibility that exists between Spark-Ignition engines (SI) and Compression-Ignition engines (CI) is convenient for customers who need fuel flexibility for their products. The Kubota WG2503 includes gasoline, LPG, and natural gas versions, as well as a dual fuel (gasoline and LPG) version.
Durability and Reliability
Kubota’s WG2503 SI engines are designed after Kubota 03 Series diesel (CI) engines. While keeping the same footprint as the V2403 diesel, they offer performance similar to that of our turbo diesel engines, which are known worldwide as reliable industrial engines. The Kubota WG2503 engine offers very low vibration and extremely low noise.
Length x Width x Height
646 x 509 x 761 mm (25.4 x 20.0 x 30.0 in)
Dry weight
197 kg
Rated output / speed
46.0kW (61.7HP) / 2700 rpm
WG2503-L-E3
Emissions
Kubota’s WG2503-L-E3 engine has been designed to comply with EPA Tier 2 / CARB Tier 3.
Fuel Flexibility
The installation compatibility that exists between Spark-Ignition engines (SI) and Compression-Ignition engines (CI) is convenient for customers who need fuel flexibility for their products. The Kubota WG2503 includes gasoline, LPG, and natural gas versions, as well as a dual fuel (gasoline and LPG) version.
Durability and Reliability
Kubota’s WG2503 SI engines are designed after Kubota 03 Series diesel (CI) engines. While keeping the same footprint as the V2403 diesel, they offer performance similar to that of our turbo diesel engines, which are known worldwide as reliable industrial engines. The Kubota WG2503 engine offers very low vibration and extremely low noise.
Length x Width x Height
646 x 509 x 761 mm (25.4 x 20.0 x 30.0 in)
Dry weight
196 kg
Rated output / speed
46.0kW (61.7HP) / 2700 rpm
WG2503-N-E3
Emissions
Kubota’s WG2503-N-E3 engine has been designed to comply
with EPA Tier 2 / CARB Tier 3.
Fuel Flexibility
The installation compatibility that exists between Spark-Ignition
engines (SI) and Compression-Ignition engines (CI) is convenient
for customers who need fuel flexibility for their products. The
Kubota WG2503 includes gasoline, LPG, and natural gas versions,
as well as a dual fuel (gasoline and LPG) version.
Durability and Reliability
Kubota’s WG2503 SI engines are designed after Kubota 03 Series
diesel (CI) engines. While keeping the same footprint as the
V2403 diesel, they offer performance similar to that of our turbo
diesel engines, which are known worldwide as reliable industrial
engines. The Kubota WG2503 engine offers very low vibration
and extremely low noise.
Length x Width x Height
646 x 509 x 761 mm (25.4 x 20.0 x 30.0 in)
Dry weight
196 kg
Rated output / speed
42.4kW (56.8HP) / 2700 rpm
V3 Series
WG3800-G-E3
Emissions
Kubota’s WG3800-G-E3 engine has been designed to comply with EPA Tier 2 / CARB Tier 3.
Fuel Flexibility
The installation compatibility that exists between Spark-Ignition engines (SI) and Compression-Ignition engines (CI) is convenient for customers who need fuel flexibility for their products. The Kubota WG3800 includes gasoline, LPG, and natural gas versions, as well as a dual fuel version (gasoline and LPG) to meet customer needs.
Durability and Reliability
Kubota’s WG3800 SI engines are designed based on Kubota V3800 diesel (CI) engines, which are known worldwide as reliable industrial engines and feature combustion chambers, as well as fuel and ignition systems dedicated for SI engines. The WG3800 engine offers very low vibration and extremely low noise.
Length x Width x Height
700 x 579 x 799 mm (27.6 x 22.8 x 31.5 in)
Dry weight
288 kg
Rated output / speed
65.0kW (87.1HP) / 2600 rpm
WG3800-GL-E3
Emissions
Kubota’s WG3800-GL-E3 engine has been designed to comply with EPA Tier 2 / CARB Tier 3.
Fuel Flexibility
The installation compatibility that exists between Spark-Ignition engines (SI) and Compression-Ignition engines (CI) is convenient for customers who need fuel flexibility for their products. The Kubota WG3800 includes gasoline, LPG, and natural gas versions, as well as a dual fuel version (gasoline and LPG) to meet customer needs.
Durability and Reliability
Kubota’s WG3800 SI engines are designed based on Kubota V3800 diesel (CI) engines, which are known worldwide as reliable industrial engines and feature combustion chambers, as well as fuel and ignition systems dedicated for SI engines. The WG3800 engine offers very low vibration and extremely low noise.
Length x Width x Height
700 x 579 x 799 mm (27.6 x 22.8 x 31.5 in)
Dry weight
288 kg
Rated output / speed
65.0kW (87.1HP) / 2600 rpm
WG3800-L-E3
Emissions
Kubota’s WG3800-L-E3 engine has been designed to comply with EPA Tier 2 / CARB Tier 3.
Fuel Flexibility
The installation compatibility that exists between Spark-Ignition engines (SI) and Compression-Ignition engines (CI) is convenient for customers who need fuel flexibility for their products. The Kubota WG3800 includes gasoline, LPG, and natural gas versions, as well as a dual fuel version (gasoline and LPG) to meet customer needs.
Durability and Reliability
Kubota’s WG3800 SI engines are designed based on Kubota V3800 diesel (CI) engines, which are known worldwide as reliable industrial engines and feature combustion chambers, as well as fuel and ignition systems dedicated for SI engines. The WG3800 engine offers very low vibration and extremely low noise.
Length x Width x Height
700 x 579 x 799 mm (27.6 x 22.8 x 31.5 in)
Dry weight
288 kg
Rated output / speed
70.0 kW (93.8HP) / 2600 rpm
WG3800-N-E3
Emissions
Kubota’s WG3800-N-E3 engine has been designed to comply with EPA Tier 2 / CARB Tier 3 + EU Stage V.
Fuel Flexibility
The installation compatibility that exists between Spark-Ignition engines (SI) and Compression-Ignition engines (CI) is convenient for customers who need fuel flexibility for their products. The Kubota WG3800 includes gasoline, LPG, and natural gas versions, as well as a dual fuel version (gasoline and LPG) to meet customer needs.
Durability and Reliability
Kubota’s WG3800 SI engines are designed based on Kubota V3800 diesel (CI) engines, which are known worldwide as reliable industrial engines and feature combustion chambers, as well as fuel and ignition systems dedicated for SI engines. The WG3800 engine offers very low vibration and extremely low noise.
Length x Width x Height
700 x 579 x 799 mm (27.6 x 22.8 x 31.5 in)
Dry weight
288 kg
Rated output / speed
55.4 kW (74.3HP) / 2600 rpm
About Kubota
Kubota UK is a market-leading manufacturer of Groundcare, Agricultural and Construction Equipment solutions. Based in the UK since 1979, Kubota UK’s range of equipment is renowned for its superior build quality, unrivalled reliability and value for money. Kubota’s range of liquid-cooled diesel engines also leads the market in the UK, and its complete range of solutions is supported by Kubota’s first class after sales service and strong nationwide dealer network.
About Lister Wilder
Lister Wilder are a friendly, family business that’s home to some of the UK’s finest machinery franchises including Kubota, Merlo, Baroness, Roberine, Trimax, Dennis, Sisis, Charterhouse, Timberwolf, Husqvarna, Stihl, SALSCO Rollers and Bomford Turner. These are all supported by the most knowledgeable Sales, Parts and Service teams in the country.
With branches across the South of England supplying a variety of machinery to the groundcare, agricultural, arboricultural and construction divisions. From tractors, compact tractors, utility vehicles and mowers to verti-drains, aerators, seeders and cultivators we supply for all divisions in the industry. We cover Berkshire, Wiltshire, Kent, Oxfordshire, Sussex, Surrey, London, Middlesex, Hampshire, Somerset, Gloucestershire and Buckinghamshire. Across our territory, we provide expert Sales advice and outstanding Parts & Service support for those working within the Agricultural, Groundcare, Construction and Arboricultural sectors.
Click here for more information on our Groundcare range.
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