This page provides a detailed comparison of the specifications for the Allis Chalmers D12 and the Caterpillar Twenty-Two.
| Allis Chalmers D12 | Caterpillar Twenty-Two | |
|---|---|---|
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| Engine | ||
| Engine Manufacturer | Allis-Chalmers | Caterpillar |
| Engine Model | Power-Crater | 4.1L 4-cyl |
| Engine Cooling Type | Liquid-cooled | - |
| Engine Fuel Type | Gasoline | Gasoline |
| Engine Induction Type | Naturally Aspirated | - |
| Engine Cylinders | 4 | 4 |
| Engine Displacement Value | 149 ci (2.4 L) | 251 ci (4.1 L) |
| Engine Rated Rpm | 1650 | 1250 |
| Engine Power Output Value | 31 hp (23.1 kW) | - |
| Transmission | ||
| Transmission Type | Sliding Gear | Gear |
| Transmission Forward Gears | 4 | 3 |
| Transmission Reverse Gears | 1 | 1 |
| Dimensions | ||
| Length Value | 121 | 108 |
| Width Value | - | 57.75 |
| Operating Weight Value | 2800 lb (1270 kg) | 6200 lb (2812 kg) |
| Miscellaneous | ||
| Chassis | 4x2 2WD | - |
| Drive Type | 2WD | - |
| Front Tire Type | - | - |
| Rear Tire Type | - | - |
| Hitch Type | Snap-Coupler | - |
| Hitch Category | I | - |
| Hitch Position | Rear | - |
| Hydraulic System Type | Live | - |
| Operator Station Type | Open | - |
| Starter Type | Electric | - |
