Zetor
Zetor 25A
The Zetor 25A is a standard-tread farm tractor produced by Zetor in Brno, Czechoslovakia from 1949 to 1961. It features a 2.1L 2-cylinder liquid-cooled diesel engine producing 25 hp (18.6 kW), a 6-speed gear transmission with 2 reverse gears, and two-wheel drive with an open operator station. The tractor has a live rear PTO with 540 rpm and weighs 4026 lbs (1826 kg). It was built in large numbers with a total production of 158,570 units. Variants include the 25A standard chassis and the 25K row-crop chassis.
Power25 hp
Founded1946 - 1948
Model25A
Technical Specifications
Detailed specifications and technical data for Zetor 25A
Power
| Engine power | 25 hp (18.6 kW) |
|---|
Tires
| Rear tire | 11.25-24 |
|---|---|
| Front tire | 5.50-16 |
Engine
| Type | diesel, 2-cylinder, liquid-cooled |
|---|---|
| Model | Zetor 2.1L 2-cyl diesel |
| Power | 25 hp (18.6 kW) |
| Fuel tank | 11.9 gal (45.0 L) |
| Rated RPM | 1800 |
| Bore/Stroke | 4.134x4.724 inches (105 x 120 mm) |
| Compression | 18:1 |
| Displacement | 126.8 ci (2.1 L) |
| Starter power | 4 hp (3.0 kW) |
| Starter volts | 12 |
Variants
| 25A | standard chassis |
|---|---|
| 25K | row-crop chassis |
Dimensions
| Length | 126 inches (320 cm) |
|---|---|
| Weight | 4026 lbs (1826 kg) |
| Wheelbase | 74.8 inches (189 cm) |
| Rear tread | 47.2 to 59.1 inches (119 to 150 cm) |
| Front tread | 47.2 to 59.1 inches (119 to 150 cm) |
| Clearance (front axle) | 16.5 inches (41 cm) |
Electrical
| Ground | negative |
|---|---|
| Battery AH | 150 |
| Battery volts | 12 |
| Charging amps | 12.5 |
| Charging system | generator |
Mechanical
| Drive | Two-wheel drive |
|---|---|
| Operator station | Open operator station |
Production
| Type | Standard-tread tractor |
|---|---|
| Built in | Brno, Czechoslovakia |
| Total built | 158,570 |
| Years produced | 1949 - 1961 |
Transmission
| Type | gear |
|---|---|
| Gears | 6 forward and 2 reverse |
| Clutch | dry disc |
Power Take-off (PTO)
| Rear PTO | live |
|---|---|
| Engine RPM | 535@1600 |
| Rear PTO Type | 540 |