Hefty
Hefty G
The Hefty G is a tool carrier tractor produced by Hefty from 1974 to 1978 in Juneau, Wisconsin, USA. It features a Continental 0.8L 4-cylinder gasoline engine producing 27 hp (20.1 kW) with a 6-speed gear transmission. The tractor is two-wheel drive with manual or optional power steering and mechanical disc brakes. It has an open operator station and offers optional independent rear and mid PTOs with 540 and 1000 rpm types. The hydraulics system is open center with 2000 psi pressure and 3.2 gpm pump flow. The tractor supports various attachments including a 60" mid-mount mower deck and a 72" blade. Tires and dimensions allow for multiple configurations with a wheelbase range of 75 to 89 inches.
Power27 hp
Founded1974 - 1978
ModelG
Technical Specifications
Detailed specifications and technical data for Hefty G
Power
| Engine | 27 hp (20.1 kW) |
|---|---|
| PTO (claimed) | 24 hp (17.9 kW) |
Engine
| Type | gasoline |
|---|---|
| Model | Continental R800-46 |
| Power | 27 hp (20.1 kW) |
| Cooling | liquid-cooled |
| Starter | electric |
| Cylinders | 4-cylinder |
| Rated RPM | 3300 |
| Bore/Stroke | 2.28x3.14 inches (58 x 80 mm) |
| Compression | 8:1 |
| Displacement | 51.6 ci (0.8 L) |
| Firing order | 1-3-4-2 |
| Starter volts | 12 |
Variants
| Hi-G | high-crop tractor |
|---|
Electrical
| Ground | negative |
|---|---|
| Battery volts | 12 |
Hydraulics
| Type | open center |
|---|---|
| Valves | 2 |
| Pressure | 2000 psi (137.9 bar) |
| Pump flow | 3.2 gpm (12.1 lpm) |
Mechanical
| Drive | Two-wheel drive |
|---|---|
| Brakes | Mechanical disc brakes |
| Steering | manual, power (Optional) |
| Operator station | Open operator station |
Production
| Type | Tool Carrier tractor |
|---|---|
| Built in | Juneau, Wisconsin, USA |
| Manufacturer | Hefty |
| Years produced | 1974 - 1978 |
Attachments
| Overview | 60" mid-mount mower deck, blade. The Hefty G had a range of attachments available including cultivators, sprayers, fertilizers, and planters by Stanhay and Gandy. |
|---|---|
| 72" Blade | IMCO, mid-mount, 72 inches width (182 cm) |
| 60" Mower deck | mid-mount Hefty, 3-blade, Cutting width 60 inches (152 cm) |
Transmission
| Type | gear |
|---|---|
| Gears | 6 forward and 1 reverse |
| Clutch | mechanical dry disc |
Tractor hitch
| Rear Type | I |
|---|
Dimensions & Tires
| Length | 126 inches (320 cm) (At closest wheelbase position.) |
|---|---|
| Rear tire | 9.5-24, 11.2-24, 12.4-24, 12.4-28 |
| Wheelbase | 75 inches (190 cm) (Multipile position front axle allows for a wheelbase range of 75 to 89 inches.) |
| Front tire | 5.00-15, 6.50-16 |
| Rear tread | 36 to 62 inches (91 to 157 cm) |
| Front tread | 40 to 60 inches (101 to 152 cm) |
| Shipping weight | 2100 lbs (952 kg) |
| Height (steering wheel) | 64 inches (162 cm) |
Power Take-off (PTO)
| Mid PTO | independent (Optional) |
|---|---|
| Rear PTO | independent (Optional) |
| Mid PTO Type | 540 (1.375), 1000 (1.375) |
| Rear PTO Type | 540 (1.375), 1000 (1.375) |