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SPECS / AGRICULTURAL TRACTORS
David Brown 990 Implematic Specs
David Brown 990 Implematic agricultural tractor specifications: tractor type Utility Tractor, horsepower 38.8 kW, weight 1940.0 kg, transmission type Partially synchronized.
Manufacturer specifications
| Specification | Metric | Imperial |
|---|---|---|
| Tractor Type | Utility Tractor | |
| Horsepower | 38.8 kW | 52.1 HP |
| Weight | 1940.0 kg | 4277.0 lbs |
| Transmission Type | Partially synchronized | |
| Length | 299.0 cm | 117.7 in. |
| Years Made | 1961-1965 | |
| Engine Model | David Brown | |
| Engine Type | 4-stroke, liquid-cooled, inline | |
| Fuel Type | Diesel | |
| Cylinders | 4 | |
| Displacement | 3044 cc | 185.8 cu in. |
| Bore | 9.19 cm | 3.62 in. |
| Stroke | 11.40 cm | 4.49 in. |
| Rear PTO Type | Transmission or live | |
| Rear PTO Speed | 540 /1000 RPM | |
| Rated RPM | 2200 RPM | |
| Compression Ratio | 17.0:1 | |
| Battery | Two 6V | |
| Starter | Electric | |
| Height | 142.0 cm | Hood Height: 55.9 in. |
| Wheelbase | 194.0 cm | 76.4 in. |
| Ground Clearance | 50.0 cm | Front axle: 19.7 in. |
| Fuel Tank Capacity | 52.0 l | 13.7 gal |
| Oil Capacity | 7.4 l | 2.0 gal |
| Coolant Capacity | 13.6 l | 3.6 gal |
| Gears | 12 forward and 4 reverse | |
| Chassis | 4×2 2WD | |
| Max. Travel Speed | 10.4 km/h | Forward: 11.9 MPH (19.1 km/h) Reverse: 6.5 MPH |
| Brakes | Differential mechanical expanding shoe | |
| Differential Lock | Mechanical rear | |
| Drawbar Category | II/I | |
| Cabin Type | Open operator station | |
| Steering Type | Manual or hydrostatic power | |
| Front Tires | Ag: 6.00-16 | |
| Rear Tires | Ag: 11-32 | |
| Hydraulic Type | Open center | |
| Total Flow | 28.0 LPM | 7.4 GPM |
| Working Pressure | 137.9 bar | 2000.0 psi |
Source: heavyequipments.net archive (imported 2026-10). Values may vary by variant and production year; seller claims are shown separately on the listing page.
