Zetor 4321
The Zetor 4321 is a tractor produced by Zetor. It is equipped with a 239 ci 3.9 L engine. The listed engine power is Diesel (listed): 59 hp / 44.0 kW. Transmission: 10 forward and reverse. Operating weight: 6620 lbs 3002 kg.
Engine Power
Diesel (listed): 59 hp / 44.0 kW
Fuel & Capacities
32 gal
121.1 L
Transmission
10 forward and reverse
Operating Weight
6620 lbs
3002 kg
Overview
 | 1997 - 2004
Range 1 Super SeriesUtility tractor
Range 1 Super Series
Utility tractor |
|---|
Production | |
|---|---|
Manufacturer | Zetor |
Utility tractor | |
Built in Brno, Czech Republic | |
Original price | $23,000 |
Variants | |
|---|---|
4321 | 2WD |
4341 | 4WD |
Zetor 4321 Engine | |
|---|---|
Zetor 3.9L 4-cyl diesel | |
Fuel tank | 32 gal
121.1 L |
Engine details ...  | |
Zetor 4321 Power | |
|---|---|
Engine | 59 hp
44.0 kW |
PTO (claimed) | 56 hp
41.8 kW |
Mechanical | |
|---|---|
Two-wheel drive | |
Power steering | |
Hydraulic wet disc brakes | |
Two-post folding ROPS. Cab optional with air-conditioning. |
Hydraulics | |
|---|---|
Type | open center |
Pressure | 2600 psi
179.3 bar |
Valves | 1 to 3 |
Pump flow | 14 gpm
53.0 lpm |
Steering flow | 4 gpm
15.1 lpm |
Tractor hitch | |
|---|---|
Rear Type | II/I |
Control | position and draft control |
Rear lift | 6830 lbs
3098 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO | independent |
Rear PTO Type | 540 |
Dimensions & Tires | |
|---|---|
Wheelbase | 73 inches
185 cm |
Weight | 6620 lbs
3002 kg |
Front tire | 9.00-16 |
Rear tire | 16.9-28 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Charging system | alternator |
Charging amps | 75 |
Battery volts | 12 |
References | |
|---|---|
 | |
Super Series Tractors published by Zetor |
Engine
Engine Detail — 239 ci / 3.9 L Diesel
Manufacturer | Zetor |
Fuel Type | Diesel |
Configuration | 4-cylinder, liquid-cooled |
Displacement | 239 ci
3.9 L |
Bore/Stroke | 4.016x4.724 inches
102 x 120 mm |
Power | 59 hp
44.0 kW |
Rated RPM | 2200 |
Starter | electric |
Starter volts | 12 |
Transmission
Transmission options | |
|---|---|
10-speed | |
10-speed mechanical shuttle |
Transmission — 10 forward and 2 reverse
Gears | 10 forward and 2 reverse |
Clutch | hydraulic 304.8mm cerametallic disc |
Transmission — 10 forward and reverse mechanical shuttle
Type | mechanical shuttle |
Gears | 10 forward and reverse |
Dimensions
Zetor 4321 Tires | |
|---|---|
Ag front | 9.00-16 |
Ag rear | 16.9-28 |
16.9-30 *With cab | |
Dimensions | |
|---|---|
Wheelbase | 73 inches
185 cm |
Length | 141 inches
358 cm |
Width | 73 inches
185 cm |
Height (cab) | 102 inches
259 cm |
Weight | 6620 lbs
3002 kg |
Attachments
Attachment overview | |
|---|---|
Zetor 102H loader | |
Zetor 102SLX loader | |
Zetor 112SLX loader |
Recommended Implements & Sizing Guide
Engineering recommendations for Zetor 4321 based on its 59 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 3 to 4 Bottom (16")3 - 4 铧 (40 cm) | Heavy Duty | Suitable for medium loam and stubble turnover. |
Rotary Cutter / MowerMowing & Clearing | 6 ft (72 in)1.8 m | Medium Duty | Medium pasture clearing; rear slip-clutch recommended. |
Rotary TillerSeedbed Prep | 66 to 72 in165 - 180 cm | Medium Duty | Standard utility tiller; slip clutch protection required. |
Disc HarrowSecondary Tillage | 7 to 8 ft Tandem Disc2.1 - 2.4 m 对开双排耙 | Medium Duty | Field leveling and clod breaking behind plows. |
Hay BalerHay & Forage | Small Square Baler (14x18")小方捆打捆机 (36x46 cm) | Medium Duty | Classic 2-string baler for horse and small livestock hay. |
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Zetor 4321.
Estimated Continuous Field Runtime: 10.4 hrs
Approximately 10.4 hours of continuous field operation at ~75% rated power on a full tank (32 gal / 121.1 L).
Estimated 75% Load Fuel Burn~3.1 gal/hr (11.6 L/hr)
Engine Crankcase Oil
SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours
Transmission & Hydraulic System
UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours
Engine Cooling System
50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours
Zetor 4321 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Zetor 4321.
Converted Equivalents:
Horsepower (HP)59 hp
Kilowatts (kW)44 kW
Metric Horsepower (PS / CV)59.8 PS
Direct Competitor Comparison
Compare Zetor 4321 against same-era industry alternatives in the same horsepower class.
Current Model
Zetor
Zetor 4321
Engine Power:Diesel (listed): 59 hp / 44.0 kW
★ Baseline Reference
International HarvesterMarket Competitor
International Harvester 485
Engine Power:53.6
Production Years:1981 - 1985
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