This page provides a detailed comparison of the specifications for the Allis Chalmers D21 Series II and the Caterpillar Twenty-Two.
| Allis Chalmers D21 Series II | Caterpillar Twenty-Two | |
|---|---|---|
| Images | ||
| Engine | ||
| Engine Manufacturer | Allis Chalmers | Caterpillar |
| Engine Model | 3500 | 4.1L 4-cyl |
| Engine Cooling Type | Liquid-cooled | - |
| Engine Fuel Type | Diesel | Gasoline |
| Engine Induction Type | Naturally aspirated | - |
| Engine Cylinders | 6 | 4 |
| Engine Displacement Value | 426 ci (7.0 L) | 251 ci (4.1 L) |
| Engine Rated Rpm | 2200 | 1250 |
| Engine Power Output Value | 121 hp (90.2 kW) | - |
| Transmission | ||
| Transmission Type | Sliding gear with dry disc clutch | Gear |
| Transmission Forward Gears | 8 | 3 |
| Transmission Reverse Gears | 2 | 1 |
| Dimensions | ||
| Length Value | 160.2 | 108 |
| Width Value | 91.3 | 57.75 |
| Operating Weight Value | 9502 lb (4310 kg) | 6200 lb (2812 kg) |
| Miscellaneous | ||
| Chassis | 4x2 2WD | - |
| Drive Type | 2WD | - |
| Front Tire Type | - | - |
| Rear Tire Type | - | - |
| Hitch Type | Three-Point Hitch | - |
| Hitch Category | III/II | - |
| Hitch Position | Rear | - |
| Operator Station Type | Open | - |
| Starter Type | Electric | - |
