David Brown 30 tractor specifications

1953 - 1957

Series:

Series:25 ← 30 → 50D

1953 - 1958

Series:

25

→ 30

Production

Production
Manufacturer:	David Brown

Variants

Variants
25D:	diesel engine
25C:	petrol engine

David Brown 25 Power

David Brown 25 Power
Engine:	32 hp 23.9 kW
Gas Drawbar (claimed):	24.1 hp 18.0 kW
Kerosene Drawbar (claimed):	22.7 hp 16.9 kW
Drawbar (tested):	25.88 hp 19.3 kW
Belt (tested):	34.89 hp 26.0 kW
power test details ...

David Brown 25 Engines

David Brown 25 Engines
David Brown 2.5L 4-cyl diesel
David Brown 2.5L 4-cyl gasoline
David Brown 2.5L 4-cyl kerosene
Fuel tank:	12.7 gal 48.1 L
Kerosene Fuel tank:	11.9 gal 45.0 L
Aux. fuel:	1.8 gal 6.8 L
Engine details ...

Mechanical

Mechanical
Chassis:	4x2 2WD
Steering:	manual
Brakes:	mechanical shoe
Cab:	Open operator station.
Transmission:	6-speed gear
Transmission details ...

Hydraulics

Hydraulics
Total flow:	9.5 gpm 36.0 lpm

Tractor hitch

Tractor hitch
Rear lift:	1,300 lbs 589 kg

Power Take-off (PTO)

Power Take-off (PTO)
Rear RPM:	540

Dimensions & Tires

Dimensions & Tires
Wheelbase:	74.8 inches 189 cm
Weight:	3,715 lbs 1685 kg
Front tire:	6.00-19
Rear tire:	11-28
Full dimensions and tires ...

25 Serial Numbers

25 Serial Numbers
1954:	P25/14400
1954:	P25/15896
1955:	P25/16998
1956:	P25/19041
1957:	P25/?????
1958:	P25/?????
Final:	P25/21318
how to read serial numbers...

Electrical

Electrical
Charging system:	generator

Production

Production Manufacturer:David Brown

Variants

Variants 30C:petrol
30D:diesel

David Brown 30 Power

David Brown 30 Power Engine:41 hp
30.6 kW

David Brown 30 Engines

David Brown 30 Engines David Brown 2.7L 4-cyl diesel David Brown 2.7L 4-cyl gasoline David Brown 2.7L 4-cyl kerosene Fuel tank:12.7 gal
48.1 L
Kerosene Fuel tank:11.9 gal
45.0 L
Aux. fuel:1.8 gal
6.8 L
Engine details ...

1953 - 1957

Series:

25 ←

30

→ 50D

Engines overview

Engines overview
David Brown 2.7L 4-cyl diesel
David Brown 2.7L 4-cyl gasoline
David Brown 2.7L 4-cyl kerosene

Engine Detail

Engine Detail
David Brown
diesel
4-cylinder
liquid-cooled
Displacement:	165.1 ci 2.7 L
Bore/Stroke:	3.625x4.00 inches 92 x 102 mm
Power:	34 hp 25.4 kW
Rated RPM:	2000

Engine Detail

Engine Detail
David Brown
gasoline
4-cylinder
liquid-cooled
Displacement:	165.1 ci 2.7 L
Bore/Stroke:	3.625x4.00 inches 92 x 102 mm
Power:	41 hp 30.6 kW
Rated RPM:	2300

Engine Detail

Engine Detail
David Brown
kerosene
4-cylinder
liquid-cooled
Displacement:	165.1 ci 2.7 L
Bore/Stroke:	3.625x4.00 inches 92 x 102 mm
Power:	37.6 hp 28.0 kW
Rated RPM:	2300