Caterpillar 303.5 CR vs Kubota KX040-4
The Kubota KX040-4 is 539 lb (6%) heavier than the Caterpillar 303.5 CR: 9,195 lb to 10,360 lb (4,171 kg to 4,699 kg) versus 9,239 lb (4,191 kg).
Caterpillar 303.5 CR
Operating weight
9,239lb 4,191kg 4.19t
4.62 US tons, 4.19 metric tonnes
- Transport L × W × H
- 15 ft 9 in × 5 ft 10 in × 8 ft 2 in
- Data source
- Manufacturer spec sheet
- Last checked
- October 6, 2026
Kubota KX040-4
Operating weight
9,195–10,360lb 4,171–4,699kg 4.17–4.7t
4.6–5.18 US tons, 4.17–4.7 metric tonnes
- Transport L × W × H
- 16 ft 8 in × 5 ft 7 in × 8 ft 2 in
- Data source
- Manufacturer spec sheet
- Last checked
- October 6, 2026
Specifications side by side
| Spec | Caterpillar 303.5 CR | Kubota KX040-4 |
|---|---|---|
| Operating weight | 9,239 lb (4,190 kg) | 9,195 lb to 10,360 lb |
| Weight range by configuration | 7,673 lb to 9,239 lb depending on cab, canopy and options | 9,195 lb to 10,360 lb depending on cab, canopy and options |
| Ground pressure | 4.3 psi (29.6 kPa) | 4.53 psi (31.2 kPa) |
| Length | 15 ft 9 in (4.80 m) | 16 ft 8 in (5.09 m) |
| Width | 5 ft 10 in (1.78 m) | 5 ft 7 in (1.70 m) |
| Height | 8 ft 2 in (2.48 m) | 8 ft 2 in (2.48 m) |
| Track shoe width | 11.8 in (300 mm) | – |
| Engine | Cat C1.7 | Kubota D1803-CR-TE4 |
| Power (as published) | 23.6 hp (17.6 kW) | 38.9 hp (29 kW) |
| Max dig depth | 9 ft 3 in (2.81 m) | 11 ft 3 in (3.42 m) |
| Max reach at ground | 16 ft 10 in (5.13 m) | 17 ft 9 in (5.41 m) |
| Bucket breakout force | 7,419 lbf (33.0 kN) | 9,535 lbf (42.4 kN) |
| Tail swing | Reduced (compact radius) | Conventional |
Values come from each model’s own sources; see the model pages for links. Configurations differ, so compare like with like.
Common questions
Which is heavier, the Caterpillar 303.5 CR or the Kubota KX040-4?
The Kubota KX040-4 is 539 lb (6%) heavier than the Caterpillar 303.5 CR: 9,195 lb to 10,360 lb (4,171 kg to 4,699 kg) versus 9,239 lb (4,191 kg).
Which is narrower?
The Kubota KX040-4 is narrower: 5 ft 7 in versus 5 ft 10 in.