- Vehicle type: unspecified
- Rigid chassis
- WhichTractor size: Utility
- No lab test on file
- 1980–1984
WhichTractor size, not the maker’s category
We looked and the record does not say what this machine is. How we decide what a machine is
David Brown 1390 (A) specs: hp, weight, years
DAVID BROWN AD 4/55 four-cylinder diesel. The manufacturer claimed 66.1 horsepower. No laboratory has tested one, so there is no measured figure at the shaft.
Engine power, claimed · gross or net not stated
66.1 hp
49.3 kW as stated by the source
No lab test on file
Claimed · standard not stated by the source
Source · Traktorenlexikon, “David Brown 1390”, claimed
This is the maker’s own figure, measured at the engine. Power at the PTO is lower — by how much, for this machine, nobody has measured.
- Weight
- 6,363 lb
- Hyd. flow
- 8.7 gpm
- Top speed
- 18.6 mph
David Brown 1390 (A) specs: key facts
The David Brown 1390 (A) was built from 1980 to 1984.
The David Brown 1390 (A) has a claimed engine power (gross or net not stated) of 49.3 kW (66.1 hp); it has no measured PTO figure.
The David Brown 1390 (A) was offered in two-wheel-drive and four-wheel-drive versions.
The David Brown 1390 (A) has a DAVID BROWN AD 4/55 engine, a 4-cylinder 3.20 L diesel unit.Source 1
The David Brown 1390 (A) weighs 2,886 kg (6,363 lb) unladen.
The David Brown 1390 (A) has an independent rear PTO running at 540 rpm / 1000 rpm.
The hydraulic pump of the David Brown 1390 (A) delivers 32.9 L/min (8.7 gpm).
Source · Traktorenlexikon, “David Brown 1390”

How much horsepower does a 1390 (A) have?
The only figure for the 1390 (A) is 66.1 hp (49.3 kW) of claimed engine power, gross or net not stated, no test standard stated — not power at the shaft.
Source · Traktorenlexikon, “David Brown 1390”
What engine is in a 1390 (A)?
A 1390 (A) has a DAVID BROWN AD 4/55, a 4-cylinder 3.20 L diesel engine.
| Make & model | DAVID BROWN AD 4/55 |
|---|---|
| Cylinders | 4, liquid-cooledSource 2 |
| Displacement | 195.2 ci · 3.20 L |
| Max torque | 168 lb·ft · 228 N·m @ 1,340 rpmSource 2 |
| Injection | direct injectionSource 2 |
Source · Traktorenlexikon, “Case 1390”
How much will a 1390 (A) lift, and what is its hydraulic flow?
Hydraulic and PTO specifications for the 1390 (A) are below.
| Pump flow | 8.7 gpm · 32.9 L/min |
|---|---|
| Rear PTO | Independent, engine-driven, 540 rpm / 1000 rpm @ 2,025 engine rpm |
| PTO shaft | 1 3/8" splines form 1 |
Source · Traktorenlexikon, “David Brown 1390”
What transmission does a 1390 (A) have?
Transmission specifications for the 1390 (A) are below.
| Clutch | Dry Borg & Beck double clutch |
|---|---|
| Steering | Hydrostatic Danfoss steering type Orbitrol |
| Top speed | 18.6 mph · 30 km/h |
Source · Traktorenlexikon, “David Brown 1390”
How much does a 1390 (A) weigh?
A 1390 (A) weighs 6,363 lb (2,886 kg) unladen.
| Unladen weight | 6,363 lb · 2,886 kgtwo-wheel-drive version |
|---|---|
| Wheelbase | 83.0 in · 2,108 mmtwo-wheel-drive version |
| Length | 142.9 in · 3,630 mm |
| Width | 72.8–100.8 in · 1,850–2,560 mm |
| Height | 100.0 in · 2,540 mm |
| Ground clearance | 15.0 in · 381 mmtwo-wheel-drive version |
| Front track | 56.0–72.0 in · 1,422–1,829 mmtwo-wheel-drive version |
| Rear track | 52.0–76.0 in · 1,321–1,930 mm |
| Turning radius, braked | 10.5 ft · 3.20 mtwo-wheel-drive version |
Source · Traktorenlexikon, “David Brown 1390”
What oil does a 1390 (A) take, and how much?
A 1390 (A) engine takes 7.8 qt (7.4 L). Single source, not independently verified — always confirm against the operator’s manual for your machine.
| System | Capacity |
|---|---|
| Engine oil | 7.8 qt · 7.4 LSource: Traktorenlexikon, “David Brown 1390” · single source, not independently verified |
| Transmission | 28.5 qt · 27.0 LSource: Traktorenlexikon, “David Brown 1390” · single source, not independently verified |
| Cooling system | 15.0 qt · 14.2 LSource: Traktorenlexikon, “David Brown 1390” · single source, not independently verified |
Always confirm against the operator’s manual for your machine before service.
Which tractors compare with a 1390 (A)?
Within 10% of its 66.1 hp of claimed engine power, the same type, and first built within 15 years of it.
- J.I. Case 1390 (DT)66.1 hp engine, claimed · 1980–1984Side by side with the 1390 (A) →
- Lamborghini R 684 (DT)66.1 hp engine, claimed · 1982–1985Side by side with the 1390 (A) →
- Lamborghini R-654 (DT)66.1 hp engine, claimed · 1977–1982Side by side with the 1390 (A) →
- Renault 70-14F66.1 hp engine, claimed · 1986–1999Side by side with the 1390 (A) →
- Renault 70-14V66.1 hp engine, claimed · 1986–1999Side by side with the 1390 (A) →
- John Deere 2355 (A)66.1 hp engine, claimed · 1987–1992Side by side with the 1390 (A) →
Common questions about the David Brown 1390 (A)
Is a 1390 (A) two-wheel drive or four-wheel drive?
The David Brown 1390 (A) was offered in two-wheel-drive and four-wheel-drive versions.
What PTO does a 1390 (A) have?
A 1390 (A) has a independent 540 rpm / 1000 rpm rear PTO on a 1 3/8" splines form 1 shaft.
Sources and how this page was built
Compiled from Traktorenlexikon, “Case 1390”; and Traktorenlexikon, “David Brown 1390”.
Sources
Facts taken from these documents, units converted. Numbers beside a figure refer to this list. Licences and attribution
- Traktorenlexikon: Case 1390 — CC BY-SA 4.0, WIKIBOOKS-TL-115388 · revision 989870. Wikibooks contributors (Traktorenlexikon). Original document
- Traktorenlexikon: David Brown 1390 — CC BY-SA 4.0, WIKIBOOKS-TL-116005 · revision 991259. Wikibooks contributors (Traktorenlexikon). Original document