| Manufacturer | Zetor |
| Price | 18,500(USD) |
| Model | 4320 |
| Equipment Type | Utility Tractors |
| Factory | Brno, Czech Republic |
NEBRASKA TRACTOR TEST 1601 2
| Description | Diesel 10-speed 4WD September 11 - 30, 1986 Link: Nebraska Tractor Test 1601 file PTO performance Drawbar performance Gear 2H used for power test. Gear 4L used for pull test |
| Power at rated engine speed | 53.09hp / 39.6kW |
| Fuel use | 3.4gal/hour / 12.9l/hour |
| Power at rated PTO speed | 50.23hp / 37.5kW |
| Max power | 46.64hp / 34.8kW |
| Max pull | 6,332lbs / 2872kg |
ZETOR 4320 POWER
| Engine | 59hp / 44.0kW |
| PTO (claimed) | 55hp / 41.0kW |
| Drawbar (tested) | 46.64hp / 34.8kW |
| PTO (tested) | 53.09hp / 39.6kW |
ENGINE DETAIL
The Zetor 4320 features a robust 4-cylinder Z6201 diesel engine with a displacement of 3.5L, providing 59hp at 2200 RPM, making it suitable for medium-duty agricultural tasks. Its 17:1 compression ratio enhances thermal efficiency, while the 14.5 qt coolant capacity ensures effective engine cooling during prolonged operations. However, potential challenges include limited power for heavy-duty applications, which may require additional horsepower for larger implements or hilly terrains.
| Description | Zetor Z6201 diesel 4-cylinder liquid-cooled |
| Displacement | 210.9ci / 3.5L |
| Bore/Stroke | 3.937x4.331inches / 100x 110 mm |
| Power | 59hp / 44.0kW |
| Compression | 17:1 |
| Rated RPM | 2200 |
| Starter volts | 12 |
| Coolant capacity | 14.5qts / 13.7L |
ZETOR 4320 ENGINE
The Zetor 4320 is equipped with a robust 3.5L four-cylinder diesel engine, providing a balance of power and efficiency suitable for various agricultural tasks. With an 18.5-gallon (70.0L) fuel tank, it offers decent operational range, making it ideal for medium-sized farms that require prolonged use without frequent refueling. A potential challenge may arise from the engine's output, as it may struggle with high-demand applications without additional power-enhancing attachments.
| Description | Zetor 3.5L 4-cyl diesel |
| Fuel tank | 18.5gal / 70.0L |
TRANSMISSIONS OVERVIEW
The Zetor 4320 tractor features a 10-speed synchro transmission, allowing for smooth and precise gear shifting, which enhances operational efficiency, especially during varied field conditions. Its robust design is ideal for moderate agricultural tasks, offering a balance of power and fuel efficiency. However, operators may face a learning curve with the gear shifts, necessitating practice for optimal performance.
| Description | 10-speed synchro 10-speed |
TRANSMISSION 1
The Zetor 4320 features a synchronized transmission with 10 forward and 2 reverse gears, providing versatility for various field applications and better control during operation. Its hydraulic clutch with a 304.8mm cerametallic disc offers reliable engagement, but may require more maintenance compared to traditional clutches. Ideal for medium-duty tasks, it balances power and efficiency, although the specific gear ratio may impact performance in more demanding terrains.
| Type | synchro |
| Gears | 10 forward and 2 reverse |
| Clutch | hydraulic 304.8mm cerametallic disc |
SPEEDS 1
| Description | With 16.9-28 rear tires |
TRANSMISSION 2
The Zetor 4320's mechanical shuttle transmission, with 10 forward and reverse gears, offers robust versatility for various field and hauling tasks, enabling precise control over speed and torque. A potential challenge may arise in operator efficiency during rapid directional changes compared to hydrostatic systems. This tractor is ideal for medium-duty agricultural operations, providing a balance of power and maneuverability in confined spaces.
| Transmission | mechanical shuttle |
| Gears | 10 forward and reverse |
SPEEDS 2
| Description | With 16.9-28 rear tires. Reverse speeds are 10% faster than forward./ |
MECHANICAL
The Zetor 4320 features a 4x2 2WD chassis, providing efficiency and ease of use in lighter agricultural applications, though it may struggle on uneven terrain compared to 4WD tractors. The power steering enhances maneuverability, while the hydraulic dry disc brakes offer reliable stopping power, important for safety during operation. The availability of air-conditioning in the two-post ROPS cab enhances operator comfort during prolonged use in hot climates, making it suitable for diverse farming tasks.
| Chassis | 4x2 2WD |
| Steering | power |
| Brakes | hydraulic dry disc |
| Cab | Two-post ROPS. Cab available with air-conditioning. |
| Transmissions | 10-speed synchro/10-speed |
HYDRAULICS
| Type | open center |
| Pressure | 2600psi / 179.3bar |
| Valves | 1 to 3 |
| Pump flow | 11gpm / 41.6lpm |
| Total flow | 15gpm / 56.8lpm |
| Steering flow | 4 gpm /15.1 lpm |
TRACTOR HITCH
| Rear Type | II/I |
| Control | position and draft control |
| Rear lift | 5850lbs / 2653kg |
POWER TAKE-OFF (PTO)
| Rear PTO | independent |
| Rear RPM | 540/1000 |
ZETOR 4320 TIRES
The Zetor 4320 features an Ag front tire size of 9.00-16 and a rear size of 16.9-28, providing a balance of traction and stability suitable for diverse agricultural tasks. The narrower front tire enhances maneuverability, while the wider rear tires improve soil compaction and weight distribution for heavier loads. When operating in varied terrain, ensure optimal tire pressure for enhanced performance and reduced soil disturbance.
| Ag front | 9.00-16 |
| Ag rear | 16.9-28 |
DIMENSIONS
| Wheelbase | 88inches / 223cm |
| Length | 140inches / 355cm |
| Width | 73inches / 185cm |
| Height (steering wheel) | 72inches / 182cm |
| Height (cab) | 101inches / 256cm |
| Weight | 6500lbs / 2948kg |
| Ground clearance | 21inches / 53cm |
DIMENSIONS & TIRES
The Zetor 4320 features an 88-inch wheelbase, providing stable handling and maneuverability in tight farming conditions. Weighing 6,500 lbs, its ground traction is optimized for diverse terrains, while the tire sizes—front: 9.00-16 and rear: 16.9-28—offer a balance of flotation and stability. However, operators should consider the tractor's limited power-to-weight ratio for heavy-duty tasks, which may necessitate careful load management.
| Wheelbase | 88inches / 223cm |
| Weight | 6500lbs / 2948kg |
| Front tire | 9.00-16 |
| Rear tire | 16.9-28 |
ZETOR 100 LOADER
| Loader weight | 1900lbs / 861kg |
| Height (to pin) | 126inches / 320cm |
| Clearance, dumped bucket | 103inches / 261cm |
| Dump reach | 38inches / 96cm |
| Dump angle | 40° |
| Reach at ground | 74inches / 187cm |
| Rollback angle | 20° |
| Breakout force (at pin) | 3700lbs / 1678kg |
| Lift to full height (at pin) | 2550lbs / 1156kg |
| Bucket width | 73inches / 185cm/83inches / 210cm |
| Raise time to height | 5.5 s |
| Lowering time | 4 s |
ELECTRICAL
| Charging system | alternator |
| Charging amps | 55 |
| Battery CCA | 950 |
| Battery volts | 12 |