International Harvester 1586 vs John Deere 4640 (A)

9 material differences · fewer than 12

Tractor one

1976–1981

No measured PTO figure

Tractor two

1978–1982

No measured PTO figure

Which should you choose?

Read our verdict on the 1586 and the 4640 (A) → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.

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

International Harvester 1586 and John Deere 4640 (A), field by field
Field	1586	4640 (A)	Gap
Engine
Engine power, claimed claimed	161 hp	175.4 hp	+9% 4640 (A)
Engine declared	INTERNATIONAL HARVESTER DT-436	John Deere 6.466 TL	differs
Displacement declared	7.14 L	7.64 L	+7% 4640 (A)
Maximum torque declared	456 lb·ft · 618 N·m	530 lb·ft · 718 N·m	+16% 4640 (A)
Transmission
Top speed declared	18.6 mph · 30 km/h	18.6 mph · 30 km/h	—
Clutch declared	—	Hydraulically operated oil cooled double disc clutch	—
Hydraulics & hitch
Hydraulic centre declared	—	Closed centre	—
Pump flow declared	12.0 gpm · 45.4 L/min	33.3 gpm · 126 L/min	+178% 4640 (A)
Pressure declared	—	3,481 psi · 240 bar	—
Three-point lift at ends declared	7,077 lb · 3,210 kg	7,326 lb · 3,323 kg	—
Rear PTO speeds declared	1000 rpm	1000 rpm	—
Weight & dimensions
Unladen weight declared	15,119 lb · 6,858 kg	14,352 lb · 6,510 kg	+5% 1586
Maximum permissible mass declared	—	18,585 lb · 8,430 kg	—
Wheelbase declared	104.8 in · 2,662 mm	118.5 in · 3,010 mm	+13% 4640 (A)
Length declared	169.0 in · 4,293 mm	171.3 in · 4,350 mm	—
Width declared	102.0 in · 2,591 mm	95.7 in · 2,430 mm	+7% 1586
Height declared	116.0 in · 2,946 mm	116.5 in · 2,960 mm	—
Ground clearance declared	14.0 in · 356 mm	14.6 in · 370 mm	—
Turning radius, braked declared	11.2 ft · 3.40 m	13.5 ft · 4.10 m	+21% 4640 (A)
Fuel tank declared	252.0 qt · 238.5 L	331.8 qt · 314.0 L	+32% 4640 (A)

Source

Source