Allis-Chalmers 6-12 Specs ( 1919-1926 )
Overview
The Allis-Chalmers 6-12 is a 2WD farm tractor produced between 1919 and 1926 in West Allis, Wisconsin, with a total production run of 1,470 units. It is equipped with a 2.3L Le Roi four-cylinder gasoline engine and a single-speed gear transmission providing one forward and one reverse gear. The machine features an open operator station, manual steering, and a total weight of 2,500 lbs.
Ideal Applications
Tested Belt Performance:
In Nebraska Tractor Test 54, the 2.3L engine achieved a maximum belt power of 12.37 hp with a fuel consumption rate of 1.8 gallons per hour.
Drawbar Pull Capacity:
The tractor is rated at a maximum drawbar pull of 1,142 lbs as tested in its single forward gear.
Mechanical Configuration:
The chassis is equipped with 48x6 front and 28x6 rear steel wheels and maintains a physical footprint of 156 inches in length and 54 inches in width.
Production
| Description | Built in West Allis, Wisconsin, USA / Original price was $795 in 1919 |
|---|---|
| Manufacturer | Allis Chalmers |
| Total built | 1,470 |
Engine
| Engine type | Le Roi 2.3L 4-cyl gasoline |
|---|---|
| Fuel tank | 8.5 gal (32.2 L) |
| Bore/Stroke | 3.125x4.50 inches (79 x 114 mm) |
| Coolant capacity | 14 qts (13.2 L) |
| Description | Le Roi 2-C / gasoline / 4-cylinder / liquid-cooled |
| Displacement | 138.1 ci (2.3 L) |
| Rated RPM | 1200 |
| Belt (claimed) | 12 hp (8.9 kW) |
| Belt (tested) | 12.37 hp (9.2 kW) |
| Drawbar (claimed) | 6 hp (4.5 kW) |
| Drawbar (tested) | 6.29 hp (4.7 kW) |
Transmission
| Gears | 1 forward and reverse |
|---|---|
| Transmission type | 1-speed gear |
| Type | gear |
Mechanical
| Cab | Open operator station. |
|---|---|
| Description | Manual steering |
| Drive type | Two-wheel drive |
Dimensions & Tires
| Ag front | 48x6 steel |
|---|---|
| Ag rear | 28x6 steel |
| Height | 72 inches (182 cm) |
| Length | 156 inches (396 cm) |
| Weight | 2500 lbs (1134 kg) |
| Width | 54 inches (137 cm) |
| Front tire | 48x6 |
| Rear tire | 28x6 |
| Weight | 2500 lbs (1134 kg) |
Nebraska Tractor Test 54
| Belt fuel use (max) | 1.8 gal/hour (6.8 l/hour) |
|---|---|
| Belt power (max) | 12.37 hp (9.2 kW) |
| Description | Gasoline 1-speed 2WDAugust 17 - 26, 1920Link: Nebraska Tractor Test 54 file / Drawbar performance / Gear 1 used for power test. / Gear 1 used for pull test. |
| Fuel use | 1.6 gal/hour (6.1 l/hour) |
| Max power | 6.29 hp (4.7 kW) |
| Max pull | 1142 lbs (518 kg) |