Technical Specifications of the Zetor 25 agricultural tractor:
Zetor 25 agricultural tractor was produced from 1946 to 1951. It features a two-cylinder engine with a displacement of 2081 cm³, and piston dimensions of 105 mm in diameter and 120 mm in stroke. The engine achieves a maximum power of 25 HP at 1800 revolutions per minute. The gearbox has 5 forward gears and 1 reverse gear. The tractor can travel at speeds ranging from 3.9 km/h to a maximum of 22.3 km/h. The rear lift is mechanically controlled, and the power take-off (PTO) operates at 540 revolutions per minute. The braking system is mechanically controlled. The turning radius for the 2WD version is 5 meters. The front tire size for the 2WD version is 5.50-16, and the rear tire size is 11.25-24. The total weight of the 2WD version is 1750 kg. The tractor’s dimensions are: height with cab 177 cm, length 320 cm, and width 190 cm. The fuel tank capacity is 45 liters.
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Technical Data Sheet for Zetor 25, 25 A, 25 K, Super 50 agricultural tractors:
| Model | Zetor 25 | Zetor 25 A | Zetor 25 K | Zetor Super | Zetor Super 50 |
| Years of production | 46-51 | 51-61 | 51-61 | 55-60 | 60-68 |
| Engine model / type | – | – | – | – | – |
| Number of cylinders / turbocharging | 2 | 2 | 2 | 4 | 4 |
| Engine displacement (cm3) | 2081 | 2081 | 2081 | 4160 | 4160 |
| Piston dimension / stroke (mm) | 105×120 | 105×120 | 105×120 | 105×120 | 105×120 |
| Maximum engine power (hp) / rpm | 25/1800 | 27/1800 | 26/1600 | 42/1500 | 50/1650 |
| Torque (Nm) / rpm | – | – | – | 240/1000 | – |
| Number of gears (front + rear) | 5+1 | 6+2 | 6+2 | 5+1 | 8+2 |
| Number of synchronized gears (front+rear) | – | – | – | – | – |
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| Speed-Shift | – | – | – | – | – |
| Type of reverse | – | – | – | – | – |
| Driving speed (km/h) | 3,9-22,3 | 3,4-32,0 | 4,3-20,3 | 3,9-24,0 | 1,2-27,7 |
| Max Driving speed (km/h) | – | – | – | – | – |
| Hydraulic pump capacity (L/min) | – | – | – | – | – |
| 3-Point Hitch control | mech | mech | – | mech | mech |
| 3-point hitch max load (kg) | – | – | – | 1200 | – |
| PTO speed (rpm) | 540 | 540 | 540 | 540 | 540 |
| Disc brake type (dry / wet) | – | – | – | – | – |
| Type of control of the braking system | mech | mech | mech | mech | mech |
| Turning radius 2WD (m) | 5 | 6,5 | – | 8,2 | – |
| Turning radius 4WD (m) | – | – | – | – | – |
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| Front wheel 2WD | 5,50-16 | 5,50-16 | 5,50-16 | 6,00-20 | 6,50-20 |
| Front wheel 4WD | – | – | – | – | – |
| Rear wheel 2WD | 11,25-24 | 13-28 | – | 14,9/13-28 | 16,9/14-28 |
| Rear wheel 4WD | – | – | – | – | – |
| 2WD total weight (kg) | 1750 | 1975 | 2105 | 2860 | 2740 |
| 4WD total weight (kg) | – | – | – | – | – |
| Total height with cabin (cm) | 177 | 191 | – | 180 | 180 |
| Total length (cm) | 320 | 320 | 320 | 343 | 357 |
| Total width (cm) | 190 | 190 | 190 | 219 | 220 |
| Fuel tank capacity (l) | 45 | 45 | 45 | 68 | 68 |
| Cabin sound level (dB) | – | – | – | – | – |
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