Introduction
Gravely 8161 Garden Tractor
The Gravely 8161 is a garden tractor produced in 1978, belonging to the 8160 series. It is a two-wheel-drive machine designed for residential lawn care and light-duty property maintenance.
Engine and Powertrain
The tractor is powered by a Briggs & Stratton 326437 gasoline engine. This 531 cc single-cylinder, air-cooled unit delivers 16 gross horsepower. It features a horizontal shaft, an electric starter system, and an oil capacity of 2 quarts (1.9 L).
Transmission and Drive
The 8161 utilizes a shaft-driven gear transmission, offering 8 forward speeds and 4 reverse speeds. The system is organized into two ranges (high and low) with four gears per range, managed by a directional control lever that allows for consistent reverse speeds in either range.
Hydraulics and PTO
The hydraulic system is an open-center type, providing a pump flow of 1.7 gpm (6.4 lpm) at a pressure of 1200 psi (82.7 bar). The tractor is equipped with an independent mid-mounted Power Take-Off (PTO) engaged via a mechanical clutch, allowing for the operation of various attachments.
Mechanical and Dimensions
Built on a 48-inch (121 cm) wheelbase, the tractor features manual steering and mechanical band brakes. It has a shipping weight of 870 lbs (394 kg). The machine runs on 16x7.50-8 front tires and 23x10.50-12 rear tires, which are configured for turf applications.
Conclusion
The Gravely 8161 is a robust, mechanically oriented garden tractor suited for users requiring a durable platform for traditional lawn maintenance tasks and attachment-based work.
Production Information of Gravely lawn tractors, 8161
- Garden tractor
| Manufacturer | Gravely |
|---|
Dimension and Tires Information of Gravely lawn tractors, 8161
| Wheelbase | 48 inches [121 cm] |
|---|---|
| Shipping weight | 870 lbs [394 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, 8161
- Briggs & Stratton 326437
- Air-cooled horizontal-shaft
- Gasoline
- 1-cylinder
| Power (gross) | 16 hp [11.9 kW] |
|---|---|
| Displacement | 531 cc [32.4 ci] |
| Starter | Electric |
| Bore/Stroke | 3.25x3.56 inches [83 x 90 mm] |
| Oil capacity | 2 qts [1.9 L] |
| Starter volts | 12 |
Transmission Information of Gravely lawn tractors, 8161
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, 8161
- Two-wheel drive
- Open operator station.
- Manual steering
- Mechanical band brakes
Power Information of Gravely lawn tractors, 8161
| Mid PTO | Independent |
|---|---|
| Clutch | Mechanical |
Hydraulics Specifications of Gravely lawn tractors, 8161
| Type | Open center |
|---|---|
| Pump flow | 1.7 gpm [6.4 lpm] |
| Capacity | 0.375 gal [1.4 L] |
| Pressure | 1200 psi [82.7 bar] |
Electrical System of Gravely lawn tractors, 8161
| Ground | Negative |
|---|---|
| Battery AH | 42 |
| Battery volts | 12 |
| Charging system | Flywheel alternator |
| Charging amps | 3 |
Where it sits
Its power puts it in the 95th percentile of 1970s models in our database (1008 machines).
Frequently asked questions
How much horsepower does the Gravely lawn tractors 8161 have?
The Gravely lawn tractors 8161 delivers 16 HP.
What years was the Gravely lawn tractors 8161 produced?
The Gravely lawn tractors 8161 was produced in 1978.
What engine does the Gravely lawn tractors 8161 have?
The Gravely lawn tractors 8161 is powered by a Gasoline, 1-cylinder engine.
What transmission does the Gravely lawn tractors 8161 use?
The Gravely lawn tractors 8161 uses a Shaft-driven gear transmission.
How much does the Gravely lawn tractors 8161 weigh?
The Gravely lawn tractors 8161 weighs 870 lbs [394 kg].
Is the Gravely lawn tractors 8161 4WD?
The Gravely lawn tractors 8161 is available in 2WD.