Gravely lawn tractors 8120
Power
12 hp
Production
1978
Engine
Gasoline, 1-cylinder
Transmission
Shaft-driven gear
Weight
890 lbs [403 kg]
Drive
2WD
From the same series:
Introduction
Gravely 8120 Garden Tractor
The Gravely 8120 is a garden tractor produced in 1978, designed for residential property maintenance and light horticultural tasks. It belongs to the 8100 series, a line of machines engineered for versatility and mechanical durability in a compact format.
Engine and Powertrain
The tractor is powered by a Kohler K301 gasoline engine. This 476 cc, single-cylinder, air-cooled unit produces 12 hp (8.9 kW). It features a horizontal-shaft configuration and an electric starting system. Power is delivered to the wheels through a shaft-driven gear transmission, providing 8 forward and 4 reverse speeds, controlled by a high/low range selector and a directional lever.
Chassis and Handling
Built on a two-wheel-drive chassis, the 8120 features manual steering and mechanical band brakes. It sits on 16x7.50-8 front tires and 23x10.50-12 rear tires, specifically designed for turf applications. The machine has a wheelbase of 48 inches (121 cm) and a ground clearance of 7 inches (17 cm), providing stability and maneuverability in garden environments.
Operational Features
The operator station is of the open type, prioritizing accessibility and visibility. Equipment versatility is facilitated by an independent mid-mounted Power Take-Off (PTO) coupled with a mechanical clutch, allowing for the operation of various attachments. The electrical system is powered by a 12-volt battery with a 42 AH capacity, maintained by a 15-amp flywheel alternator.
Conclusion
With a shipping weight of 890 lbs (403 kg), the Gravely 8120 serves as a robust utility platform for homeowners and collectors. Its mechanical design and independent PTO make it suitable for tasks requiring consistent power delivery in a garden setting.
Production Information of Gravely lawn tractors, 8120
- Garden tractor
| Manufacturer | Gravely |
|---|
Dimension and Tires Information of Gravely lawn tractors, 8120
| Wheelbase | 48 inches [121 cm] |
|---|---|
| Shipping weight | 890 lbs [403 kg] |
| Height | 43 inches [109 cm] |
| Length | 75.5 inches [191 cm] |
| Ground clearance | 7 inches [17 cm] |
| Width | 36.375 inches [92 cm] |
| Lawn/turf front | 16x7.50-8 |
|---|---|
| Lawn/turf rear | 23x10.50-12 |
Engine Specifications of Gravely lawn tractors, 8120
- Kohler K301
- Air-cooled horizontal-shaft
- Gasoline
- 1-cylinder
| Power (gross) | 12 hp [8.9 kW] |
|---|---|
| Displacement | 476 cc [29.07 ci] |
| Starter | Electric |
| Bore/Stroke | 3.258x3.37 inches [83 x 86 mm] |
| Oil capacity | 2 qts [1.9 L] |
| Starter volts | 12 |
Transmission Information of Gravely lawn tractors, 8120
Transmission variants 1
- Four gears (1-4) in two ranges (low/high) with directional control lever (forward/reverse). Reverse speeds are the same in high or low range.
| Type | Shaft-driven gear |
|---|---|
| Gears | 8 forward and 4 reverse |
Mechanical Specs of Gravely lawn tractors, 8120
- Two-wheel drive
- Open operator station.
- Manual steering
- Mechanical band brakes
Power Information of Gravely lawn tractors, 8120
| Mid PTO | Independent |
|---|---|
| Clutch | Mechanical |
Electrical System of Gravely lawn tractors, 8120
| Ground | Negative |
|---|---|
| Battery AH | 42 |
| Battery volts | 12 |
| Charging system | Flywheel alternator |
| Charging amps | 15 |
Where it sits
Its power puts it in the 76th percentile of 1970s models in our database (1008 machines).
Frequently asked questions
How much horsepower does the Gravely lawn tractors 8120 have?
The Gravely lawn tractors 8120 delivers 12 HP.
What years was the Gravely lawn tractors 8120 produced?
The Gravely lawn tractors 8120 was produced in 1978.
What engine does the Gravely lawn tractors 8120 have?
The Gravely lawn tractors 8120 is powered by a Gasoline, 1-cylinder engine.
What transmission does the Gravely lawn tractors 8120 use?
The Gravely lawn tractors 8120 uses a Shaft-driven gear transmission.
How much does the Gravely lawn tractors 8120 weigh?
The Gravely lawn tractors 8120 weighs 890 lbs [403 kg].
Is the Gravely lawn tractors 8120 4WD?
The Gravely lawn tractors 8120 is available in 2WD.