Introduction
Zetor 7421 (2004-2007)
The Zetor 7421 is a two-wheel-drive agricultural tractor produced between 2004 and 2007 as part of the 6441 and 7441 series. Built in Brno, Czech Republic, this model is designed for general agricultural applications, offering a balance of mechanical simplicity and operational versatility.
Engine and Performance
The tractor is powered by a 4.2-liter, 4-cylinder turbocharged diesel engine manufactured by Zetor. This liquid-cooled unit produces 75 horsepower (55.9 kW) at a rated speed of 2200 RPM. The engine is equipped with a 12-volt starter system.
Transmission and Drivetrain
The 7421 features a two-wheel-drive configuration and offers two transmission options: a 10-speed syncromesh gearbox or a 12-speed mechanical shuttle transmission. Both configurations utilize a 304.8 mm hydraulic cerametallic disc clutch to ensure reliable power delivery during gear changes.
Hydraulics and PTO
The hydraulic system is an open-center type, providing a total flow of 18 gpm (68.1 lpm), with 14 gpm (53.0 lpm) dedicated to pump flow at a pressure of 2900 psi (200 bar). It features three control valves. The rear power take-off (PTO) is independent and offers dual-speed capabilities of 540 and 1000 RPM.
Hitch and Dimensions
The rear hitch is a Category II/I type equipped with position and draft control, capable of lifting up to 6,830 lbs (3,098 kg). The tractor has a wheelbase of 90 inches (228 cm) and a total operating weight of 7,310 lbs (3,315 kg). The ground clearance measures 22 inches (55 cm), and the front and rear treads are adjustable between 56 and 71 inches.
Operator Environment
Standard equipment includes a two-post folding Roll-Over Protective Structure (ROPS). An enclosed cab equipped with air-conditioning was available as a factory option to improve operator comfort during extended work sessions.
Conclusion
The Zetor 7421 serves as a dependable mid-range tractor suitable for various field tasks. Its straightforward mechanical design, combined with adjustable tread widths and a capable hydraulic system, makes it a practical choice for farmers requiring a robust, two-wheel-drive machine for primary agricultural operations.
Production Information of Zetor, 7421
- Built in Brno, Czechoslovakia
| Manufacturer | Zetor |
|---|
Dimension and Tires Information of Zetor, 7421
| Ground clearance | 22 inches [55 cm] |
|---|---|
| Wheelbase | 90 inches [228 cm] |
| Height (cab) | 102 inches [259 cm] |
| Height (ROPS) | 103 inches [261 cm] |
| Length | 152 inches [386 cm] |
| Front tread | 56 to 71 inches [142 to 180 cm] |
| Weight | 7310 lbs [3315 kg] |
| Width | 73 inches [185 cm] |
| Rear tread | 56 to 71 inches [142 to 180 cm] |
| Ag front | 9.00-16 |
|---|---|
| Ag rear | 16.9-30 |
Engine Specifications of Zetor, 7421
- Zetor
- Liquid-cooled
- Turbocharged diesel
- 4-cylinder
| Rated RPM | 2200 |
|---|---|
| Displacement | 254 ci [4.2 L] |
| Starter volts | 12 |
| Power | 75 hp [55.9 kW] |
Transmission Information of Zetor, 7421
Transmission variants 1
| Type | Syncromesh |
|---|---|
| Gears | 10 forward and 2 reverse |
| Clutch | 304.8mm hydraulic cerametallic disc |
Transmission variants 2
| Type | Mechanical shuttle |
|---|---|
| Gears | 12 forward and reverse |
| Clutch | 304.8mm hydraulic cerametallic disc |
- 10-speed syncromesh
- 12-speed mechanical shuttle
Mechanical Specs of Zetor, 7421
- Two-wheel drive
- Two-post folding ROPS. Cab optional with air-conditioning.
Power Information of Zetor, 7421
| Rear PTO | Independent |
|---|---|
| Rear PTO Type | 540/1000 |
Hydraulics Specifications of Zetor, 7421
| Type | Open center |
|---|---|
| Total flow | 18 gpm [68.1 lpm] |
| Pump flow | 14 gpm [53.0 lpm] |
| Pressure | 2900 psi [200.0 bar] |
| Valves | 3 |
Three-Point Hitch of Zetor, 7421
| Rear Type | II/I |
|---|---|
| Control | Position and draft control |
| Rear lift | 6830 lbs [3098 kg] |
Where it sits
With 75 HP, the Zetor 7421 sits just above 6441 (64 HP) in Zetor's range. Its power puts it in the 50th percentile of 2000s models in our database (2822 machines).
Frequently asked questions
How much horsepower does the Zetor 7421 have?
The Zetor 7421 delivers 75 HP.
What years was the Zetor 7421 produced?
The Zetor 7421 was produced in 2004-2007.
What engine does the Zetor 7421 have?
The Zetor 7421 is powered by a Turbocharged diesel, 4-cylinder engine.
What transmission does the Zetor 7421 use?
The Zetor 7421 uses a Syncromesh transmission.
How much does the Zetor 7421 weigh?
The Zetor 7421 weighs 7310 lbs [3315 kg].
Is the Zetor 7421 4WD?
The Zetor 7421 is available in 2WD.