SPECS / COMPARISON
Kubota KX121-3 vs Caterpillar 304E CR
A detailed comparison of the Kubota KX121-3 and the Caterpillar 304E CR. Click a model name to view its full specifications.
Horsepower
Kubota KX121-331 kW (42 HP)
Caterpillar 304E CR30 kW (40 HP)
Weight
Kubota KX121-34111 kg (9063 lbs)
Caterpillar 304E CR4009 kg (8838 lbs)
Operating Weight
Kubota KX121-34111 kg (9063 lbs)
Caterpillar 304E CR4009 kg (8838 lbs)
| Specification | Kubota KX121-3 Mini Excavators | Caterpillar 304E CR Mini Excavators |
|---|---|---|
| Excavator Type | Mini Excavator | Mini Excavator |
| Weight | 4111 kg (9063 lbs) | 4009 kg (8838 lbs) |
| Horsepower | 31 kW (42 HP) | 30 kW (40 HP) |
| Digging Depth | 351 cm (138 in.) | 344 cm (136 in.) |
| Max Digging Depth | 351 cm (138 in.) | 344 cm (136 in.) |
| Max Loading Height | 390.1 cm (153.6 in.) | — |
| Max Reach Along Ground | 548.6 cm (216.0 in.) | 557.8 cm (219.6 in.) |
| Max Vertical Wall Digging Depth | 249.9 cm (98.4 in.) | — |
| Overall Length | 509.0 cm (200.4 in.) | — |
| Ground Clearance | 33.5 cm (13.2 in.) | — |
| Overall Width | 170.7 cm (67.2 in.) | 195.1 cm (76.8 in.) |
| Engine Make | Kubota | — |
| Engine Model | V2203-M | C2.4 |
| Net Power | 31 kW (42 HP) | 30 kW (40 HP) |
| Gross Power | 33.6 kW (45.1 HP) | 31 kw (42 hp) |
| Rated Power | 2250 RPM | — |
| Hydraulic Pump Flow Capacity | 95 LPM (25 GPM) | — |
| Hydraulic System Capacity | 67.0 l (17.7 gal) | — |
| Operating Weight | 4111 kg (9063 lbs) | 4009 kg (8838 lbs) |
| Max Travel Speed | 5.0 km (3.1 mph) | 4.5 km (2.8 mph) |
| Swing Speed | 9.4 RPM | Machine 9 RPM |
| Fuel Capacity | 64.0 l (16.9 gal) | — |
| Ground Pressure | 31.0 kPa (4.5 psi) | — |
| Displacement | 2197.5 cc (134 cu. in.) | 2392.5 cc (146 cu. in.) |
| Max Cutting Height | 542.5 cm (213.6 in.) | — |
| Blade Height | — | 30 cm (12.8 in) |
| Blade Lift Height | — | 38 cm (15.8 in.) |
| Stroke | — | 10.2 cm (4.0 in) |
| Bore | — | 8.6 cm (3.4 in) |
| Boom Swing(Left) | — | 55 ° |
| Boom Swing(Right) | — | 50 ° |
Values come from the manufacturer-sourced model files; empty cells mean the property is not published for that model. No performance ranking is applied.