Introduction
David Brown 50D Tractor
The David Brown 50D is a two-wheel drive agricultural tractor belonging to the 30 series, manufactured between 1953 and 1958. It was designed as a robust workhorse for mid-century farming operations.
Engine and Performance
The tractor is equipped with a David Brown 6-cylinder liquid-cooled diesel engine. With a displacement of 248 cubic inches (4.1 liters) and a compression ratio of 16:1, it delivers 50 horsepower at a rated speed of 1800 RPM. The engine cooling system has a capacity of 20 quarts (18.9 liters), while the lubrication system requires 11 quarts (10.4 liters) of oil.
Transmission and Drivetrain
Power is managed through a manual transmission offering 6 forward gears and 2 reverse gears. The system utilizes a 10-inch dry disc clutch. The transmission oil capacity is 24 quarts (22.7 liters). The tractor features mechanical drum brakes for reliable stopping power and manual steering for operator control.
Dimensions and Hydraulics
The 50D features an open operator station and a rear Power Take-Off (PTO) operating at 540 RPM. The tractor has a wheelbase of 81.75 inches (207 cm), an overall length of 134.75 inches (342 cm), and a width of 74 inches (187 cm). With a ground clearance of 13 inches (33 cm) and a total weight of 6,130 lbs (2780 kg), it is fitted with 7.50-18 front tires and 14-30 rear tires.
Conclusion
The David Brown 50D is a conventional, mechanical tractor suited for standard field tasks and general farm utility. Its 6-cylinder engine and straightforward transmission design make it a representative example of 1950s agricultural engineering, valued today primarily by collectors and restoration enthusiasts.
Production Information of David Brown, 50D
| Manufacturer | David Brown |
|---|
Dimension and Tires Information of David Brown, 50D
| Wheelbase | 81.75 inches [207 cm] |
|---|---|
| Weight | 6,130 lbs [2780 kg] |
| Height (hood) | 65 inches [165 cm] |
| Length | 134.75 inches [342 cm] |
| Ground clearance | 13 inches [33 cm] |
| Width | 74 inches [187 cm] |
| Ag front | 7.50-18 |
|---|---|
| Ag rear | 14-30 |
Engine Specifications of David Brown, 50D
- David Brown
- Liquid-cooled
- Diesel
- 6-cylinder
| Oil capacity | 11 qts [10.4 L] |
|---|---|
| Displacement | 248 ci [4.1 L] |
| Compression | 16:1 |
| Bore/Stroke | 3.625x4.00 inches [92 x 102 mm] |
| Coolant capacity | 20 qts [18.9 L] |
| Idle RPM | 700-1800 |
| Rated RPM | 1800 |
| Power | 50 hp [37.3 kW] |
Transmission Information of David Brown, 50D
Transmission variants 1
| Type | Gear |
|---|---|
| Oil capacity | 24 qts [22.7 L] |
| Gears | 6 forward and 2 reverse |
| Clutch | 10-inch dry disc |
Mechanical Specs of David Brown, 50D
- Two-wheel drive
- Open operator station.
- Mechanical drum brakes
| Steering | Manual |
|---|
Power Information of David Brown, 50D
| Rear PTO Type | 540 |
|---|
Where it sits
With 50 HP, the David Brown 50D sits just above 30 (34 HP) in David Brown's range. Its power puts it in the 74th percentile of 1950s models in our database (592 machines).
Frequently asked questions
How much horsepower does the David Brown 50D have?
The David Brown 50D delivers 50 HP.
What years was the David Brown 50D produced?
The David Brown 50D was produced in 1953-1958.
What engine does the David Brown 50D have?
The David Brown 50D is powered by a Diesel, 6-cylinder engine.
What transmission does the David Brown 50D use?
The David Brown 50D uses a Gear transmission.
How much does the David Brown 50D weigh?
The David Brown 50D weighs 6,130 lbs [2780 kg].
Is the David Brown 50D 4WD?
The David Brown 50D is available in 2WD.