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| info | |
| 1949 - 1961, Standard-tread tractor |
| Production | |
| Manufacturer: | Zetor |
| Factory: | Brno, Czechoslovakia |
| Total built: | 158,570 |
| Variants | |
| 25A: | standard chassis |
| 25K: | row-crop chassis |
| Capacity | |
| Fuel: | 11.9 gal [45.0 L] |
| Power Take-off (PTO) | |
| Rear PTO: | live |
| Rear RPM: | 540 |
| Engine RPM: | 535@1600 |
| Dimensions & Tires | |
| Wheelbase: | 74.8 inches [189 cm] |
| Weight: | 4026 lbs [1826 kg] |
| Front tire: | 5.50-16 |
| Rear tire: | 11.25-24 |
| 25A Serial Numbers | |
| - Serial numbers unknown -, |
| 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 |
| Zetor 25A Power | |
| Engine: | 25 hp [18.6 kW] |
| Mechanical | |
| Chassis: | 4x2 2WD |
| Cab: | Open operator station. |
| Electrical | |
| Ground: | negative |
| Charging system: | generator |
| Charging amps: | 12.5 |
| Battery | |
| Number: | 1 |
| Volts: | 12 |
| Amp-hours: | 150 |
| info | |
| 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] |
| Engine Detail | |
| Zetor, diesel, 2-cylinder, liquid-cooled, 126.8 ci [2.1 L] |
| Transmission | |
| Type: | gear |
| Gears: | 6 forward and 2 reverse |
| Clutch: | dry disc |
| Dimensions | |
| Weight: | 4026 lbs [1826 kg] |
| Wheelbase: | 74.8 inches [189 cm] |
| Length: | 126 inches [320 cm] |
| 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] |
| Zetor 25A Tires | |
| Ag front: | 5.50-16 |
| Ag rear: | 11.25-24 |