
CaterpillarModel A
Caterpillar Diesel Forty
Industrial
- power
- Not recorded
- displacement
- 624 ci
- Cylinders
- 3
- Forward gears
- 4
Head to head · Industrial

Industrial
Industrial
How they compare
Diesel Forty is in the 75th percentile; Diesel Seventy-Five is in the 93rd · 53 models
Diesel Forty is in the 21st percentile; Diesel Seventy-Five is in the 88th · 55 models
Diesel Forty is in the 3rd percentile; Diesel Seventy-Five is in the 64th · 43 models
Full comparison
| Spec | Caterpillar Diesel Forty | Caterpillar Diesel Seventy-Five | Difference |
|---|---|---|---|
| Manufacturer | Caterpillar | Caterpillar | Same |
| Model | Diesel Forty | Diesel Seventy-Five | — |
| Category | Industrial | Industrial | Same |
| Spec | Caterpillar Diesel Forty | Caterpillar Diesel Seventy-Five | Difference |
|---|---|---|---|
| Manufacturer | Caterpillar | Caterpillar | Same |
| Model | D6600 | Not recorded | — |
| Rated RPM | 1,000RPM | 700RPM | ▲ Diesel Forty+300 RPM · +43% |
| Cylinders | 3 | 6 | ▲ Diesel Seventy-Five+3 · +100% |
| Displacement | 624ci | 1,039ci | ▲ Diesel Seventy-Five+415 ci · +67% |
| Bore | 5.8in | 5.3in | ▲ Diesel Forty+0.5 in · +9% |
| Stroke | 8in | 8in | Same |
| Spec | Caterpillar Diesel Forty | Caterpillar Diesel Seventy-Five | Difference |
|---|---|---|---|
| Type | Gear | Not recorded | — |
| Spec | Caterpillar Diesel Forty | Caterpillar Diesel Seventy-Five | Difference |
|---|---|---|---|
| Width | 16in | 78in | ▲ Diesel Seventy-Five+62 in · +388% |
| Operating Weight | 15,642lb | Not recorded | — |
Category context