Introduction
GBT-3000 Utility Tractor
The GBT-3000 is a two-wheel drive utility tractor manufactured by GBT in Madison, Wisconsin, between 1976 and 1978. Designed for general agricultural tasks, this model reflects the standard utility tractor specifications of the mid-1970s.
Engine and Performance
The tractor is powered by a liquid-cooled engine producing 27 horsepower (20.1 kW) at a rated speed of 3300 RPM. It features a displacement of 51.6 cubic inches (0.8 L) with a bore/stroke ratio of 2.28 by 3.14 inches. The compression ratio is 8:1, and the system utilizes a 12-volt electrical starter.
Transmission and Hydraulics
The drivetrain consists of a gear-type transmission providing 6 forward speeds and 1 reverse speed. The hydraulic system is of the open-center type, operating at a pressure of 2000 psi (137.9 bar) with a pump flow capacity of 8 gallons per minute (30.3 liters per minute). It is equipped with an independent rear power take-off (PTO) standard at 540 RPM.
Mechanical and Dimensions
The GBT-3000 is built on a 70.5-inch (179 cm) wheelbase with a total length of 105 inches (266 cm). It features power steering and hydraulic disc brakes to assist with maneuverability and stopping. The tractor weighs approximately 2500 lbs (1134 kg) and provides a front axle clearance of 18.75 inches (47 cm). The operator station is of the open type.
Conclusion
With its 27 hp engine, power steering, and independent PTO, the GBT-3000 is suited for light field work and general farm utility maintenance. Its straightforward mechanical design and 1970s-era utility configuration make it a functional machine for small-scale agricultural operations.
Production Information of GBT, GBT-3000
- Original price was $4,650 in 1976
- Utility tractor
- Built in Madison, Wisconsin, USA
| Manufacturer | GBT |
|---|
Dimension and Tires Information of GBT, GBT-3000
| Front tread | 43 to 61 inches [109 to 154 cm] |
|---|---|
| Wheelbase | 70.5 inches [179 cm] |
| Clearance (front axle) | 18.75 inches [47 cm] |
| Weight | 2500 lbs [1134 kg] |
| Length | 105 inches [266 cm] |
| Rear tread | 40 to 69 inches [101 to 175 cm] |
| Clearance (rear axle) | 21.5 inches [54 cm] |
| Height (steering wheel) | 61 inches [154 cm] |
| Ag front | 5.00x15 |
|---|---|
| Ag rear | 12.4x28 |
| Ag rear | 12.4x24 |
| Ag front | 5.50x16 |
Engine Specifications of GBT, GBT-3000
- Liquid-cooled
| Starter volts | 12 |
|---|---|
| Displacement | 51.6 ci [0.8 L] |
| Oil capacity | 3 qts [2.8 L] |
| Compression | 8:1 |
| Bore/Stroke | 2.28x3.14 inches [58 x 80 mm] |
| Oil change | 50 h |
| Coolant capacity | 8 qts [7.6 L] |
| Starter | Electric |
| Rated RPM | 3300 |
| Power | 27 hp [20.1 kW] |
Transmission Information of GBT, GBT-3000
Transmission variants 1
| Type | Gear |
|---|---|
| Type(optional) | SAE-90 |
| Oil type | SAE-90 |
| Gears | 6 forward and 1 reverse |
| Oil capacity | 5.9 qts [5.6 L] |
Mechanical Specs of GBT, GBT-3000
- Two-wheel drive
- Open operator station.
- Power steering
- Hydraulic disc brakes
Power Information of GBT, GBT-3000
| Rear PTO | Independent |
|---|---|
| Rear PTO Type | 540 (1.375) |
Hydraulics Specifications of GBT, GBT-3000
| Type | Open center |
|---|---|
| Pump flow | 8 gpm [30.3 lpm] |
| Capacity | 0.7 gal [2.6 L] |
| Pressure | 2000 psi [137.9 bar] |
Three-Point Hitch of GBT, GBT-3000
| Rear Type | I |
|---|
Electrical System of GBT, GBT-3000
| Ground | Negative |
|---|---|
| Battery volts | 12 |
Where it sits
Its power puts it in the 16th percentile of 1970s models in our database (1259 machines).
Frequently asked questions
How much horsepower does the GBT GBT-3000 have?
The GBT GBT-3000 delivers 27 HP.
What years was the GBT GBT-3000 produced?
The GBT GBT-3000 was produced in 1976-1978.
What transmission does the GBT GBT-3000 use?
The GBT GBT-3000 uses a Gear transmission.
How much does the GBT GBT-3000 weigh?
The GBT GBT-3000 weighs 2500 lbs [1134 kg].
Is the GBT GBT-3000 4WD?
The GBT GBT-3000 is available in 2WD.