The Hefty Hi-G is a tractor with a rated power of 27 hp, situated at the lighter end of its class. It was manufactured from 1974 to 1978, and features a 4-cylinder diesel liquid-cooled engine. The tractor is equipped with two-wheel drive and a 6-speed gearbox, with an operating weight of 1338 kg. It is suitable for operations covering up to 200 acres.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
27 hp
Weight
1338 kg
Catalogue coverage
Variants represented
2
Richest spec table
47 rows
Recorded power
27 hp
Recorded weight
1338 kg
Transmissions
6-speed gear
Production years
1974-1978
Verified variants
0
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Overview
ManufacturerHeftyReference
High-Clearance tractorReference
Built in Juneau, Wisconsin, USAReference
Two-wheel driveReference
Manual steeringReference
Mechanical dry disc brakesReference
Open operator station.Reference
Engine
Continental 0.8L 4-cyl gasolineReference
Mitsubishi 1.2L 2-cyl dieselReference
Engine20.1 kWReference
Continental R800-46Reference
gasolineReference
4-cylinderReference
liquid-cooledReference
Displacement0.8 LReference
Bore/Stroke58 x 80 mmReference
Power20.1 kWReference
StarterelectricReference
Starter volts12Reference
MitsubishiReference
dieselReference
2-cylinderReference
Displacement1.2 LReference
Bore/Stroke90 x 98 mmReference
Transmission
6-speed gearReference
TypegearReference
Gears6 forward and 1 reverseReference
Clutchmechanical dry discReference
PTO & Hydraulics
Typeopen centerReference
Pressure103.4 barReference
Pump flow13.2 lpmReference
Dimensions
Wheelbase193 cmReference
Weight1338 kgReference
Front tire5.00-15Reference
Rear tire9.5-24Reference
Ag front5.00-15Reference
Ag rear9.5-24Reference
Ag front6.50-16Reference
Ag rear11.2-24Reference
Ag rear12.4-24Reference
Ag rear12.4-28Reference
Length317 cmReference
Height (steering wheel)208 cmReference
Ground clearance91 cmReference
Electrical
GroundnegativeReference
Battery volts12Reference
Speeds
With 12.4-28 rear tires.Reference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.
