Zetor 25A tractor specifications

1949 - 1961

1949 - 1961 Standard-tread tractor

Production

Production Manufacturer:Zetor
Type:Standard-tread tractor
Factory:Brno, Czechoslovakia
Total built:158,570

Variants

Variants 25A:standard chassis
25K:row-crop chassis

1949 - 1961

Standard-tread tractor

Production

Production
Manufacturer:	Zetor
Type:	Standard-tread tractor
Factory:	Brno, Czechoslovakia
Total built:	158,570

Variants

Variants
25A:	standard chassis
25K:	row-crop chassis

Zetor 25A Power

Zetor 25A Power
Engine:	25 hp 18.6 kW

Zetor 25A Engine

Zetor 25A Engine
Zetor 2.1L 2-cyl diesel
Fuel tank:	11.9 gal 45.0 L
Engine details ...

Mechanical

Mechanical
Chassis:	4x2 2WD
Cab:	Open operator station.
Transmission:	6-speed gear
Transmission details ...

Power Take-off (PTO)

Power Take-off (PTO)
Rear PTO:	live
Rear RPM:	540
Engine RPM:	535@1600

Dimensions & Tires

Dimensions & Tires
Wheelbase:	74.8 inches 189 cm
Weight:	4026 lbs 1826 kg
Front tire:	5.50-16
Rear tire:	11.25-24
Full dimensions and tires ...

Links

Links
Zetor Model 25 A: Photos and information on the 25A from Kurt Ristniemi
Zetor 25: Photos, data, and wiring information on the 25 in Finland

Electrical

Electrical
Ground:	negative
Charging system:	generator
Charging amps:	12.5
Battery volts:	12
Battery AH:	150

Zetor 25A Power

Zetor 25A Power Engine:25 hp
18.6 kW

Zetor 25A Engine

Zetor 25A Engine Zetor 2.1L 2-cyl diesel Fuel tank:11.9 gal
45.0 L
Engine details ...

1949 - 1961

Standard-tread tractor

Engine Detail

Engine Detail
Zetor
diesel
2-cylinder
liquid-cooled
Displacement:	126.8 ci 2.1 L
Bore/Stroke:	4.134x4.724 inches 105 x 120 mm
Power:	25 hp 18.6 kW
Compression:	18:1
Rated RPM:	1800
Starter volts:	12
Starter power:	4 hp 3.0 kW

Mechanical

Mechanical Chassis:4x2 2WD
Cab:Open operator station.
Transmission:6-speed gear
Transmission details ...

1949 - 1961

Standard-tread tractor

Transmission

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

Speeds

Speeds

Power Take-off (PTO)

Power Take-off (PTO) Rear PTO:live
Rear RPM:540
Engine RPM:535@1600

Dimensions & Tires

Dimensions & Tires Wheelbase:74.8 inches
189 cm
Weight:4026 lbs
1826 kg
Front tire:5.50-16
Rear tire:11.25-24
Full dimensions and tires ...

1949 - 1961

Standard-tread tractor

Zetor 25A Tires

Zetor 25A Tires
Ag front:	5.50-16
Ag rear:	11.25-24

Dimensions

Dimensions
Wheelbase:	74.8 inches 189 cm
Length:	126 inches 320 cm
Weight:	4026 lbs 1826 kg
Clearance (front axle):	16.5 inches 41 cm
Front tread:	47.2 to 59.1 inches 119 to 150 cm
Rear tread:	47.2 to 59.1 inches 119 to 150 cm