Hefty Hi-G
The Hefty Hi-G is a tractor produced by Hefty. It is equipped with a 76 ci 1.2 L engine. The listed engine power is Gasoline (listed): 27 hp / 20.1 kW; Diesel (listed): 27 hp / 20.1 kW. Transmission: 6 forward and 1 reverse. Operating weight: 2950 lbs 1338 kg.
Engine Power
Gasoline (listed): 27 hp / 20.1 kW; Diesel (listed): 27 hp / 20.1 kW
Fuel & Capacities
Diesel
Transmission
6 forward and 1 reverse
Operating Weight
2950 lbs
1338 kg
Overview
![]() | 1974 - 1978
High-Clearance tractor |
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Production | |
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Manufacturer | Hefty |
High-Clearance tractor | |
Built in Juneau, Wisconsin, USA | |
Hefty Hi-G Transmission | |
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6-speed gear | |
Transmission details ... |
Hefty Hi-G Power | |
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Engine | 27 hp
20.1 kW |
Mechanical | |
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Two-wheel drive | |
Manual steering | |
Mechanical dry disc brakes | |
Open operator station. |
Hydraulics | |
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Type | open center |
Pressure | 1500 psi
103.4 bar |
Pump flow | 3.5 gpm
13.2 lpm |
Dimensions & Tires | |
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Wheelbase | 76 inches*Multiple position front axle allowed for a wheelbase range of 76 to 90 inches.
193 cm |
Weight | 2950 lbs
1338 kg |
Front tire | 5.00-15 |
Rear tire | 9.5-24 |
Full dimensions and tires ... | |
Electrical | |
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Ground | negative |
Battery volts | 12 |
References | |
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![]() | |
Hi-G - High Clearance Nursery Tractor published by Hefty |
Engine
Engine options | |
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Continental 0.8L 4-cyl gasoline | |
Mitsubishi 1.2L 2-cyl diesel |
Engine Detail — 51.6 ci / 0.8 L Gasoline
Manufacturer | Continental R800-46 |
Fuel Type | Gasoline |
Configuration | 4-cylinder, liquid-cooled |
Displacement | 51.6 ci
0.8 L |
Bore/Stroke | 2.28x3.14 inches
58 x 80 mm |
Power | 27 hp
20.1 kW |
Starter | electric |
Starter volts | 12 |
Engine Detail — 76 ci / 1.2 L Diesel
Manufacturer | Mitsubishi |
Fuel Type | Diesel |
Configuration | 2-cylinder, liquid-cooled |
Displacement | 76 ci
1.2 L |
Bore/Stroke | 3.54x3.86 inches
90 x 98 mm |
Power | 27 hp
20.1 kW |
Starter | electric |
Starter volts | 12 |
Transmission
Transmission — 6 forward and 1 reverse gear
Type | gear |
Gears | 6 forward and 1 reverse |
Clutch | mechanical dry disc |
With 12.4-28 rear tires. | |
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Dimensions
Hefty Hi-G Tires | |
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Ag front | 5.00-15 |
Ag rear | 9.5-24 |
Ag front | 6.50-16 |
Ag rear | 11.2-24 |
12.4-24 | |
12.4-28 | |
Dimensions | |
|---|---|
Wheelbase | 76 inches*Multiple position front axle allowed for a wheelbase range of 76 to 90 inches.
193 cm |
Length | 125 inches*At closest wheelbase setting.
317 cm |
Height (steering wheel) | 82 inches
208 cm |
Weight | 2950 lbs
1338 kg |
Ground clearance | 36 inches*Optional configurations allowed for a ground clearance up to 48 inches.
91 cm |
Photos
Hefty Hi-G Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Hefty Hi-G.
Converted Equivalents:
Horsepower (HP)0 hp
Kilowatts (kW)0 kW
Metric Horsepower (PS / CV)0 PS
Direct Competitor Comparison
Compare Hefty Hi-G against same-era industry alternatives in the same horsepower class.
Current Model
Hefty
Hefty Hi-G
Engine Power:Gasoline (listed): 27 hp / 20.1 kW; Diesel (listed): 27 hp / 20.1 kW
★ Baseline Reference



