SPECS / COMPARISON

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

Feature	Massey Ferguson 550Tractor	Zetor 4911Tractor
Tractor Type	Row-Crop Tractor	Utility Tractor
Horsepower	35.0 kW	33.6 kW
Weight	2080.0 kg	—
Lift Capacity	1415.0 kg	1350.0 kg
Transmission Type	Two-speed power shift	—
Length	355.0 cm	337.0 cm
Pump Flow	36.0 LPM	—
Years Made	1977-1979	1977-1980
Engine Model	Perkins AD3.152S	Zetor Z4901
Engine Type	4-stroke, liquid-cooled, inline	4-stroke, liquid-cooled, inline
Fuel Type	Diesel	Diesel
Cylinders	3	3
Displacement	2490 cc	2695 cc
Bore	9.09 cm	10.21 cm
Stroke	12.70 cm	11.00 cm
Rear PTO Type	Live with mechanical dry disc clutch or independent with hydraulic clutch	—
Rear PTO Speed	540, 1000 RPM	540 /1000 RPM
Torque Power	1400 RPM	1450 RPM
Torque Speed	169.0 N·m	43.3 N·m
Rated RPM	2250 RPM	2200 RPM
Compression Ratio	16.5:1	—
Starter	Electric	Electric
Height	231.0 cm	—
Width	165.0 cm	—
Wheelbase	208.0 cm	198.0 cm
Ground Clearance	28.0 cm	—
Fuel Tank Capacity	67.4 l	54.9 l
Oil Capacity	6.8 l	—
Coolant Capacity	18.0 l	—
Transmission Model	Multi-Power	—
Gears	12 forward and 4 reverse	10 forward and 2 reverse
Chassis	4×2 2WD	4×2 2WD
Brakes	Drum	—
Drawbar Category	II	–
Cabin Type	Cab standard with heater	Open operator station. Cab available.
Hitch Type	Position and draft control	—
Steering Type	Power	—
Front Tires	Ag: 6.00-16	Ag: 7.50-16
Rear Tires	Ag: 12.4/11-28	Ag: 12.4-36
Total Flow	62.5 LPM	—
Working Pressure	137.9 bar	—
Battery	—	12 V
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