FORCETALLY
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Measured figures
Configuration
| Specification | Caterpillar D4 | Husky VMMD |
|---|---|---|
| Manufacturer | Caterpillar Inc.[source] | DCD Group Critical Solutions International[source] |
| Type | small bulldozer[source] | MRAP[source] |
| Introduction | Caterpillar first introduced the RD4 in 1936[source]RD4 predecessor only, not modern D4 variants | — |
| Powerplant | D315 engine[source]Historical D4U series only | — |
| Gauge | 6U = Narrow gauge 44 in (1,100 mm) |
Height
Single source10 ft (3.14 m)[source]
curb weight
Single sourcegross weight
Single source18,408 to 19,841 lb (8,350 to 9,000 kg) curb weight, 20,282 to 25,022 lb (9,200 to 11,350 kg) gross weight[source]
2 (G2 variant)
Single source1 2 (G2 variant)[source]
Maximum; top speed
Single source45 mph (72 km/h) top speed[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
7U = Wide Gauge 60 in (1,500 mm)[source]7U only
| — |
| Variants | Caterpillar D4C - 1959-63 Caterpillar D4D - 1963-77 Caterpillar D4E - 1977-84 Caterpillar D4H - 1985-96 Caterpillar D4C SII -1990-93 Caterpillar D4C SIII - 1993[source]Production/version history; never service-ending intervals | — |
|---|
| Country of origin | United States[source]Inventory Origin column; table 7, row 11, cell 5; revision 1368748817; retrieved 2026-09-30 | — |
|---|
| Place of origin | — | South Africa[source] |
|---|
| In service | — | 1970s–present[source] |
|---|
| Produced | — | 1970s–present[source] |
|---|
| Engine | — | Mercedes-Benz OM906LA 6.4L turbo diesel[source] |
|---|
| Transmission | — | 5-speed automatic[source] |
|---|