David Brown 25 tractor specifications

1953 - 1958

Series:

Series:25 → 30

1953 - 1957

Series:

25 ←

30

→ 50D

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 ...

Mechanical

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

Power Take-off (PTO)

Power Take-off (PTO)
Rear RPM:	540

Dimensions & Tires

Dimensions & Tires
Wheelbase:	74.8 inches 189 cm
Weight:	3,900 lbs 1769 kg
Front tire:	6.00-19
Rear tire:	11-28
Full dimensions and tires ...

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 ...

1953 - 1958

Series:

25

→ 30

Nebraska Tractor Test 530

Nebraska Tractor Test 530
Gasoline 6-speed 2WD November 1 - 6, 1954 Link: Nebraska Tractor Test 530 file
Belt power (max):	34.89 hp 26.0 kW
Belt fuel use (max):	3.3 gal/hour 12.5 l/hour
Drawbar performance
Max power:	25.88 hp 19.3 kW
Gear 4 used for power test.
Max pull:	3,269 lbs 1482 kg
Gear 2 used for pull test.

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 ...

1953 - 1958

Series:

25

→ 30

Engines overview

Engines overview
David Brown 2.5L 4-cyl diesel
David Brown 2.5L 4-cyl gasoline
David Brown 2.5L 4-cyl kerosene

Engine Detail

Engine Detail
David Brown
diesel
4-cylinder
liquid-cooled
Displacement:	154 ci 2.5 L
Bore/Stroke:	3.50x4.00 inches 89 x 102 mm
Power:	32 hp 23.9 kW
Compression:	15.9:1
Rated RPM:	1800
Starter volts:	12

Engine Detail

Engine Detail
David Brown
gasoline
4-cylinder
liquid-cooled
Displacement:	154 ci 2.5 L
Bore/Stroke:	3.50x4.00 inches 89 x 102 mm
Air cleaner:	oil bath
Compression:	5.5:1
Rated RPM:	1600
Starter volts:	12

Engine Detail

Engine Detail
David Brown
kerosene
4-cylinder
liquid-cooled
Displacement:	154 ci 2.5 L
Bore/Stroke:	3.50x4.00 inches 89 x 102 mm
Compression:	4.7:1
Rated RPM:	1600

Mechanical

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

1953 - 1958

Series:

25

→ 30

Transmission

Transmission
Type:	gear
Gears:	6 forward and 2 reverse
Clutch:	dry plate

Speeds

Speeds

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 ...

1953 - 1958

Series:

25

→ 30

David Brown 25 Tires

David Brown 25 Tires
Ag front:	6.00-19
Ag rear:	11-28

Dimensions

Dimensions
Wheelbase:	74.8 inches 189 cm
Length:	113 inches 287 cm
Weight:	3,715 lbs 1685 kg
Ground clearance:	15.4 inches 39 cm
Front tread:	49.5 to 62 inches 125 to 157 cm
Rear tread:	48 to 68 inches 121 to 172 cm

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...