
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; R2 is in the 43rd · 53 models
Diesel Forty is in the 21st percentile; R2 is in the 50th · 55 models
Diesel Forty is in the 30th percentile; R2 is in the 50th · 43 models
Diesel Forty is in the 62nd percentile; R2 is in the 34th · 49 models
Full comparison
| Spec | Caterpillar Diesel Forty | Caterpillar R2 | Difference |
|---|---|---|---|
| Manufacturer | Caterpillar | Caterpillar | Same |
| Model | Diesel Forty | R2 | — |
| Category | Industrial | Industrial | Same |
| Spec | Caterpillar Diesel Forty | Caterpillar R2 | Difference |
|---|---|---|---|
| Manufacturer | Caterpillar | Caterpillar | Same |
| Model | D6600 | 3.6L 4-cyl gasoline | — |
| Rated RPM | 1,000RPM | 1,525RPM | ▲ R2+525 RPM · +53% |
| Cylinders | 3 | 4 | ▲ R2+1 · +33% |
| Displacement | 624ci | 221ci | ▲ Diesel Forty+403 ci · +182% |
| Bore | 5.8in | 3.8in | ▲ Diesel Forty+2 in · +53% |
| Stroke | 8in | 5in | ▲ Diesel Forty+3 in · +60% |
| Spec | Caterpillar Diesel Forty | Caterpillar R2 | Difference |
|---|---|---|---|
| Type | Gear | Gear | Same |
| Spec | Caterpillar Diesel Forty | Caterpillar R2 | Difference |
|---|---|---|---|
| Width | 16in | Not recorded | — |
| Operating Weight | 15,642lb | 6,350lb | ▲ Diesel Forty+9,292 lb · +146% |
| Spec | Caterpillar Diesel Forty | Caterpillar R2 | Difference |
|---|---|---|---|
| Coolant | Not recorded | 7gal | — |
Category context