SPECS / COMPARISON

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Manufacturer-sourced values side by side. No performance equivalence or ranking is applied across different machine classes.

Feature	Zetor 4321Tractor	Farmall 656Tractor
Tractor Type	Utility Tractor	Row-Crop Tractor
Horsepower	44.0 kW	47.0 kW
Weight	3000.0 kg	3280.0 kg
Lift Capacity	3100.0 kg	—
Transmission Type	Mech shuttle	Hydrostatic
Length	358.0 cm	386.0 cm
Pump Flow	53.0 LPM	—
Years Made	1997-2004	1965-1973
Engine Model	Zetor Z6202	International Harvester D282
Engine Type	4-stroke, liquid-cooled, inline	4-stroke, liquid-cooled, inline
Fuel Type	Diesel	Diesel
Cylinders	4	6
Displacement	3917 cc	4621 cc
Bore	10.16 cm	9.40 cm
Stroke	11.94 cm	11.20 cm
Rear PTO Type	independent	Independent
Rear PTO Speed	540 RPM	540 /1.000 RPM
Rated RPM	2200 RPM	—
Battery	12 V	12 V
Starter	electric	Electric
Height	259.0 cm	195.0 cm
Width	185.0 cm	—
Wheelbase	185.0 cm	244.0 cm
Fuel Tank Capacity	121.1 l	147.6 l
Oil Capacity	12.0 l	8.5 l
Coolant Capacity	11.6 l	20.3 l
Hydraulic Capacity	64.0 l	—
Engine Oil Type	CC	—
Gears	10 forward and reverse	Infinite forward and reverse
Chassis	4×2 2WD	4×2 2WD
Brakes	hydraulic wet disc	Independent mechanical disc
Drawbar Category	Category II/I	II/I
Cabin Type	Two-post folding ROPS. Cab optional with air-conditioning.	Open operator station
Hitch Type	Position and draft control	—
Steering Type	power	Hydrostatic power
Front Tires	Ag: 9.00-16	Ag: 6.00-16
Rear Tires	Ag: 16.9-28, 16.9-30	Ag: 15.5-38
Hydraulic Type	open center	Open center
Steering Flow	15.1 LPM	—
Working Pressure	179.3 bar	—
Valves	1 to 3	—
Compression Ratio	—	17.6:1
Ground Clearance	—	53.0 cm
Transmission Oil Capacity	—	64.4 l
Max. Travel Speed	—	33.8 km/h
Total Flow	—	45.4 LPM
Source	heavyequipments.net archive (imported 2026-10)	heavyequipments.net archive (imported 2026-10)

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Side-by-side specification comparisons generated from the manufacturer-sourced model files. · 7,051