SPECS / COMPARISON
David Brown 990 Implematic vs Kubota M4030SU
A detailed comparison of the David Brown 990 Implematic and the Kubota M4030SU. Click a model name to view its full specifications.
Horsepower
David Brown 990 Implematic38.8 kW (52.1 HP)
Kubota M4030SU38.0 kW (51.0 HP)
| Specification | David Brown 990 Implematic Agricultural Tractors | Kubota M4030SU Agricultural Tractors |
|---|---|---|
| Tractor Type | Utility Tractor | Utility Tractor |
| Horsepower | 38.8 kW (52.1 HP) | 38.0 kW (51.0 HP) |
| Weight | 1940.0 kg (4277.0 lbs) | — |
| Transmission Type | Partially synchronized | — |
| Length | 299.0 cm (117.7 in.) | 341.0 cm (134.3 in.) |
| Years Made | 1961-1965 | 1988-1998 |
| Engine Model | David Brown | Kubota F2402-DI-A |
| Engine Type | 4-stroke, liquid-cooled, inline | 4-stroke, liquid-cooled, inline |
| Fuel Type | Diesel | Diesel |
| Cylinders | 4 | 5 |
| Displacement | 3044 cc (185.8 cu in.) | 2436 cc (148.7 cu in.) |
| Bore | 9.19 cm (3.62 in.) | — |
| Stroke | 11.40 cm (4.49 in.) | — |
| Rear PTO Type | Transmission or live | Independent |
| Rear PTO Speed | 540 /1000 RPM | 540 RPM |
| Rated RPM | 2200 RPM | — |
| Compression Ratio | 17.0:1 | — |
| Battery | Two 6V | 12 V |
| Starter | Electric | Electric |
| Height | 142.0 cm (Hood Height: 55.9 in.) | — |
| Wheelbase | 194.0 cm (76.4 in.) | 199.0 cm (78.3 in.) |
| Ground Clearance | 50.0 cm (Front axle: 19.7 in.) | — |
| Fuel Tank Capacity | 52.0 l (13.7 gal) | 64.0 l (16.9 gal) |
| Oil Capacity | 7.4 l (2.0 gal) | — |
| Coolant Capacity | 13.6 l (3.6 gal) | — |
| Gears | 12 forward and 4 reverse | 8 forward and 2 reverse |
| Chassis | 4×2 2WD | 4×2 2WD |
| Max. Travel Speed | 10.4 km/h (Forward: 11.9 MPH (19.1 km/h) Reverse: 6.5 MPH) | 10.8 km/h (Forward: 15.7 MPH (25.3 km/h) Reverse: 6.7 MPH) |
| Brakes | Differential mechanical expanding shoe | Mechanical wet disc |
| Differential Lock | Mechanical rear | — |
| Drawbar Category | II/I | I |
| Cabin Type | Open operator station | Open operator station with two-post ROPS |
| Steering Type | Manual or hydrostatic power | Power |
| Front Tires | Ag: 6.00-16 | Ag: 6.00-16 |
| Rear Tires | Ag: 11-32 | Ag: 14.9-28 |
| Hydraulic Type | Open center | Open center |
| Total Flow | 28.0 LPM (7.4 GPM) | — |
| Working Pressure | 137.9 bar (2000.0 psi) | — |
Values come from the manufacturer-sourced model files; empty cells mean the property is not published for that model. No performance ranking is applied.