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

Hefty Hi-G tractor photo
1974 - 1978 High-Clearance tractor
Production
Manufacturer
Hefty
High-Clearance tractor
Built in Juneau, Wisconsin, USA
Hefty Hi-G Transmission
6-speed gear
Transmission details ...
Hefty Hi-G Power
Engine
27 hp 20.1 kW
Mechanical
Two-wheel drive
Manual steering
Mechanical dry disc brakes
Open operator station.
Hydraulics
Type
open center
Pressure
1500 psi 103.4 bar
Pump flow
3.5 gpm 13.2 lpm
Dimensions & Tires
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
Ground
negative
Battery volts
12
References
Hi-G references literature
Hi-G - High Clearance Nursery Tractor published by Hefty

Engine

Engine options
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.
Hi-G  gear speeds

Dimensions

Hefty Hi-G Tires
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 tractor photo

Hefty Hi-G tractor photo

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
Massey FergusonMarket Competitor

Massey Ferguson 1225

Engine Power:24.3
Production Years:1999 - 2002
DeereMarket Competitor

Deere 3025D

Engine Power:24.4
Production Years:2019 - 2026
New HollandMarket Competitor

New Holland Workmaster 25

Engine Power:24.4
Production Years:2018 - 2026
AGCOMarket Competitor

AGCO ST25

Engine Power:24.3
Production Years:2001 - 2004
  • Hefty F

    Power:
    27
    Production years:
    1974 - 1978
  • Hefty G

    Power:
    27
    Production years:
    1974 - 1978
  • Hefty LNT

    Power:
    27
    Production years:
    1974 - 1978