6 material differences · fewer than 12

Tractor oneJohn Deere 48401978–1982No measured PTO figureTractor twoSOMECA 1880 (TD)1979–1983No measured PTO figure

Which should you choose?

Read our verdict on the 4840 and the 1880 (TD) → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.

6 material differences · 7 fields identical or within 5%, which is not counted as material

John Deere 4840 and SOMECA 1880 (TD), field by field
Field	4840	1880 (TD)	Gap
Engine
Engine power, claimed claimed	178.6 hp	177.6 hp	—
Engine declared	John Deere 6.466 AT	FIAT-IVECO 8365.25.500	differs
Displacement declared	7.64 L	8.10 L	+6% 1880 (TD)
Maximum torque declared	—	504 lb·ft · 684 N·m	—
Transmission
Top speed declared	18.6 mph · 30 km/h	15.5–18.6 mph · 25–30 km/h	differs
Clutch declared	Hydraulically operated oil-cooled double-plate clutch	Pedal-operated FERODO or LuK single-plate clutch	differs
Hydraulics & hitch
Hydraulic centre declared	Closed centre	—	—
Pump flow declared	23.0 gpm · 87.1 L/min	—	—
Pressure declared	3,481 psi · 240 bar	3,336–3,481 psi · 230–240 bar	—
Rear PTO speeds declared	1000 rpm	1000 rpm	—
Weight & dimensions
Unladen weight declared	14,899 lb · 6,758 kg	14,330 lb · 6,500 kg	—
Maximum permissible mass declared	—	22,046 lb · 10,000 kg	—
Wheelbase declared	118.5 in · 3,010 mm	116.7 in · 2,963 mm	—
Length declared	176.8 in · 4,490 mm	171.9 in · 4,365 mm	—
Width declared	95.7 in · 2,430 mm	85.0–108.7 in · 2,160–2,760 mm	differs
Height, over the cab declared	116.9 in · 2,970 mm	112.8 in · 2,865 mm	—
Ground clearance declared	—	27.4 in · 695 mm	—
Turning radius, braked declared	13.5 ft · 4.10 m	—	—
Fuel tank declared	412.0 qt · 389.9 L	295.9 qt · 280.0 L	+39% 4840

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