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| info | |
| The R2 was originally a special-order machine for the US Government based on the Twenty-Two (the R2 5E). Only 83 of these special-order machines were made. In 1939 the R2 was a general-public machine, the gasoline counterpart to the D2. |
| Production | |
| Manufacturer: | Caterpillar |
| Factory: | Peoria, IL |
| Dimensions & Tires | |
| Weight: | 6,000 lbs [2721 kg] |
| Front tire: | tracks |
| Rear tire: | tracks |
| R2 Serial Numbers | |
| - Serial numbers unknown - |
| Caterpillar R2 Power | |
| Belt (tested): | 32 hp [23.9 kW] |
| Mechanical | |
| Chassis: | crawler |
| info | |
| Bore/Stroke: | 4.00x5.00 inches [102 x 127 mm] |
| Engine Detail | |
| Caterpillar, gasoline, 4-cylinder, 251 ci [4.1 L] |
| Dimensions | |
| Weight: | 6,000 lbs [2721 kg] |
| Caterpillar R2 Tires | |
| Ag front: | 40, 50-inch tracks |
| Ag rear: | 40, 50-inch tracks |