| Production | |
| Manufacturer | Allis Chalmers |
| Standard-tread tractor | |
| Built in West Allis, Wisconsin, USA | |
| Total built | 1160 |
| Original price was $1,785 in 1919 | |
| Originally named the Allis-Chalmers 15-30, the tractor was renamed 18-30 after the first Nebraska test. | |
| Allis Chalmers 18-30 Engine | |
| Allis Chalmers 7.6L 4-cyl gasoline | |
| Fuel tank | 25 gal 94.6 L |
| Aux. fuel | 7.75 gal 29.3 L |
| Allis Chalmers 18-30 Transmission | |
| 2-speed unsynchronized gear | |
| Allis Chalmers 18-30 Power | |
| Drawbar (claimed) | 18 hp 13.4 kW |
| Belt (claimed) | 30 hp 22.4 kW |
| Plows | 3 |
| Drawbar (tested) | 20.55 hp 15.3 kW |
| Belt (tested) | 33.41 hp 24.9 kW |
| Mechanical | |
| Two-wheel drive | |
| Open operator station. |
| Dimensions & Tires | |
| Weight | 6150 lbs 2789 kg |
| Front tire | 36x6 |
| Rear tire | 50x12 |
| 18-30 Serial Numbers | |
| Location: | front of shifter on transmission case |
| 1919 | 5000 |
| ---- | 5006 |
| 1920 | 5161 |
| 1921 | 6015 |
| 1922 | ???? |
FAQ: How to read a serial number table. | |
| Belt Pulley | |
| Diameter | 13 inches 33 cm |
| Width | 8.5 inches 21 cm |
| RPM | 930 |
| References | |
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| 18-30 4 Plow Tractor With Surplus Power published in 1921, by Allis Chalmers |
| Page information | |
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| Peter Easterlund - owner/author | |
| Email: Peter@TractorData.com | |
| Updated on March 12, 2015 |