Advance-Rumely OilPull K 12/20 Specs ( 1918-1924 )
Overview
The Advance-Rumely OilPull K 12/20 is a standard-tread farm tractor produced in La Porte, Indiana, between 1918 and 1924 with a total production of 7,284 units. It is powered by a 7.4L 2-cylinder liquid-cooled horizontal opposed kerosene engine and operates with a two-wheel drive system on steel wheels. The tractor is equipped with a gear transmission providing two forward speeds and one reverse speed, weighing 6,430 lbs in total.
Ideal Applications
Tested Power Output:
Nebraska Tractor Test 10 recorded a maximum belt power of 25.87 hp and a maximum drawbar pull of 2,780 lbs during its 1920 evaluation.
Engine and Fuel Configuration:
The 452.4 ci kerosene engine is rated at 560 RPM and utilizes a 23-gallon main fuel tank alongside a 1-gallon auxiliary tank.
Chassis and Dimensions:
The open operator station tractor is 132 inches long and 64 inches wide, featuring 44x8 front steel wheels and 64x20 rear steel wheels.
Production
| Description | Standard-tread tractor / Built in La Porte, Indiana, USA |
|---|---|
| Manufacturer | Advance-Rumely |
| Total built | 7,284 |
Engine
| Aux. fuel | 1 gal (3.8 L) |
|---|---|
| Engine type | Rumley 7.4L 2-cyl kerosene |
| Fuel tank | 23 gal (87.1 L) |
| Bore/Stroke | 6.00x8.00 inches (152 x 203 mm) |
| Description | Rumley / kerosene / 2-cylinder / liquid-cooled horizontal opposed |
| Displacement | 452.4 ci (7.4 L) |
| Power | 40 hp (29.8 kW) |
| Rated RPM | 560 |
| Belt (claimed) | 20 hp (14.9 kW) |
| Belt (tested) | 25.87 hp (19.3 kW) |
| Drawbar (claimed) | 12 hp (8.9 kW) |
| Drawbar (tested) | 15.02 hp (11.2 kW) |
Transmission
| Gears | 2 forward and 1 reverse |
|---|---|
| Transmission type | 2-speed gear |
| Type | gear |
Mechanical
| Cab | Open operator station. |
|---|---|
| Drive type | Two-wheel drive |
Dimensions & Tires
| Ag front | 44x8 steel |
|---|---|
| Ag rear | 64x20 steel |
| Height | 75 inches (190 cm) |
| Length | 132 inches (335 cm) |
| Weight | 6,430 lbs (2916 kg) |
| Width | 64 inches (162 cm) |
| Front tire | 44x8 |
| Rear tire | 64x20 |
| Weight | 6,430 lbs (2916 kg) |
Nebraska Tractor Test 10
| Belt fuel use (max) | 3.0 gal/hour (11.4 l/hour) |
|---|---|
| Belt power (max) | 25.87 hp (19.3 kW) |
| Description | Kerosene 2-speed 2WDMay 1 - 21, 1920Link: Nebraska Tractor Test 10 file / Drawbar performance |
| Max power | 15.02 hp (11.2 kW) |
| Max pull | 2780 lbs (1261 kg) |
OilPull K 12/20 Serial Numbers
| 1918 | 1200 |
|---|---|
| 1919 | 12101 |
| 1920 | 13657 |
| 1921 | 17640 |
| 1922 | 18649 |
| 1923 | 19269 |
| 1924 | 20511 |
| Description | FAQ: How to read a serial number table. |