Introduction
Zetor 25K Row-Crop Tractor
The Zetor 25K is a row-crop tractor manufactured in Brno, Czechoslovakia, between 1948 and 1961. Designed for versatility in agricultural operations, this two-wheel drive machine represents a significant model in the Zetor production history.
Engine and Performance
The tractor is powered by a liquid-cooled, 2-cylinder diesel engine with a displacement of 2.1 liters (126.8 cubic inches). It produces 25 horsepower (18.6 kW) at a rated speed of 1800 RPM. The engine features a bore/stroke ratio of 105 x 120 mm and a compression ratio of 18:1.
Transmission and PTO
The drivetrain utilizes a gear-type transmission providing 6 forward and 2 reverse speeds, managed by a dry disc clutch. The rear power take-off (PTO) is a live system operating at 540 RPM, which is achieved at 1600 engine RPM.
Dimensions and Chassis
The Zetor 25K has a wheelbase of 74.8 inches (189 cm) and an overall length of 126 inches (320 cm). It features a front axle clearance of 20.5 inches (52 cm) and adjustable front tread widths ranging from 48.3 to 59.8 inches (122 to 151 cm). The machine weighs 4310 lbs (1955 kg) and is equipped with 5.50-16 front tires and 9-36 rear tires.
Electrical System
The electrical system operates on a 12-volt circuit with a negative ground. It includes a generator for charging and a 150 AH battery. The starter motor provides 4 hp (3.0 kW) of power.
Conclusion
With its robust 25-horsepower diesel engine and row-crop configuration, the Zetor 25K is suited for standard agricultural duties and field cultivation. Its durable construction and straightforward mechanical design make it a reliable choice for historical agricultural applications.
Production Information of Zetor, 25K
- Row-Crop tractor
- Built in Brno, Czechoslovakia
| Manufacturer | Zetor |
|---|
Dimension and Tires Information of Zetor, 25K
| Wheelbase | 74.8 inches [189 cm] |
|---|---|
| Front tread | 48.3 to 59.8 inches [122 to 151 cm] |
| Clearance (front axle) | 20.5 inches [52 cm] |
| Length | 126 inches [320 cm] |
| Weight | 4310 lbs [1955 kg] |
| Ag front | 5.50-16 |
|---|---|
| Ag rear | 9-36 |
| Ag rear(optional) | 13-28 |
Engine Specifications of Zetor, 25K
- Zetor
- Liquid-cooled
- Diesel
- 2-cylinder
| Starter power | 4 hp [3.0 kW] |
|---|---|
| Displacement | 126.8 ci [2.1 L] |
| Compression | 18:1 |
| Bore/Stroke | 4.134x4.724 inches [105 x 120 mm] |
| Starter volts | 12 |
| Rated RPM | 1800 |
| Power | 25 hp [18.6 kW] |
Transmission Information of Zetor, 25K
Transmission variants 1
| Type | Gear |
|---|---|
| Gears | 6 forward and 2 reverse |
| Clutch | Dry disc |
Mechanical Specs of Zetor, 25K
- Two-wheel drive
- Open operator station.
Power Information of Zetor, 25K
| Rear PTO | Live |
|---|---|
| Rear PTO Type | 540 |
| Engine RPM | 535@1600 |
Electrical System of Zetor, 25K
| Ground | Negative |
|---|---|
| Battery AH | 150 |
| Battery volts | 12 |
| Charging system | Generator |
| Charging amps | 12.5 |
Where it sits
With 25 HP, the Zetor 25K sits between Compax 25 (23 HP) and 2520 (27 HP) in Zetor's range. Its power puts it in the 30th percentile of 1940s models in our database (263 machines).
Frequently asked questions
How much horsepower does the Zetor 25K have?
The Zetor 25K delivers 25 HP.
What years was the Zetor 25K produced?
The Zetor 25K was produced in 1948-1961.
What engine does the Zetor 25K have?
The Zetor 25K is powered by a Diesel, 2-cylinder engine.
What transmission does the Zetor 25K use?
The Zetor 25K uses a Gear transmission.
How much does the Zetor 25K weigh?
The Zetor 25K weighs 4310 lbs [1955 kg].
Is the Zetor 25K 4WD?
The Zetor 25K is available in 2WD.