Overview
The Avery 12-20 is a 2WD farm tractor manufactured in Peoria, Illinois, between 1920 and 1922. It features a 5.9L 4-cylinder liquid-cooled horizontal opposed engine equipped with a 16-gallon main fuel tank and a 6-gallon auxiliary tank. The machine is configured with steel wheels, a 2-speed transmission, and weighs 5,500 lbs.
Ideal Applications
Tested Power Output:
During Nebraska Tractor Test 41, the model achieved a maximum belt power of 24.3 hp and a maximum drawbar pull of 2,608 lbs.
Engine Configuration:
The tractor is equipped with an Avery 360.8 ci kerosene engine rated at 800 RPM, utilizing a 4.375x6.00 inch bore and stroke.
Physical Dimensions and Drive:
This 56-inch wide tractor utilizes 32x5 steel front tires and 52x14 steel rear tires with a two-wheel drive mechanical system.
Production
| Description | Built in Peoria, Illinois |
|---|---|
| Manufacturer | Avery |
Engine
| Aux. fuel | 6 gal (22.7 L) |
|---|---|
| Engine type | Avery 5.9L 4-cyl kerosene |
| Fuel tank | 16 gal (60.6 L) |
| Bore/Stroke | 4.375x6.00 inches (111 x 152 mm) |
| Coolant capacity | 44 qts (41.6 L) |
| Description | Avery / kerosene / 4-cylinder / liquid-cooled horizontal opposed |
| Displacement | 360.8 ci (5.9 L) |
| Rated RPM | 800 |
| Belt (claimed) | 20 hp (14.9 kW) |
| Belt (tested) | 24.3 hp (18.1 kW) |
| Drawbar (claimed) | 12 hp (8.9 kW) |
| Drawbar (tested) | 17.6 hp (13.1 kW) |
Transmission
| Gears | 2 forward and 1 reverse |
|---|---|
| Transmission type | 2-speed |
Mechanical
| Drive type | Two-wheel drive |
|---|
Dimensions & Tires
| Ag front | 32x5 steel |
|---|---|
| Ag rear | 52x14 steel |
| Height | 78 inches (198 cm) |
| Length | 130 inches (330 cm) |
| Weight | 5,500 lbs (2494 kg) |
| Width | 56 inches (142 cm) |
| Front tire | 32x5 |
| Rear tire | 52x14 |
| Weight | 5,500 lbs (2494 kg) |
Nebraska Tractor Test 41
| Belt power (max) | 24.3 hp (18.1 kW) |
|---|---|
| Description | July 1920 / Drawbar performance |
| Max power | 17.6 hp (13.1 kW) |
| Max pull | 2,608 lbs (1182 kg) |