International Harvester 644 vs International Harvester 666 - compare

International Harvester 644 vs International Harvester 666 compare - general information

Specs	International Harvester 644	International Harvester 666
Brand	International Harvester	International Harvester
Model	International Harvester 644	International Harvester 666
Series	n.d.	n.d.
Previous model	–	International Harvester 656
Next model	–	International Harvester 686
Smaller	–	–
Larger	–	–
Years	from 1974 to 1980 y.	from 1972 to 1976 y.
Cab with ROPS	No	No
Reviews	International Harvester 644 reviews New!	International Harvester 666 reviews New!

International Harvester 644 vs International Harvester 666 - performance

Specs	International Harvester 644	International Harvester 666
Maximum power (HP / kW)	60 KM (44.7 kW)	n.d.
Engine RPM	2150 rpm	2000 rpm
Fuel consumption	n.d.	n.d.
Fuel tank capacity	n.d.	n.d.
Max. speed	n.d.	n.d.

International Harvester 644 vs International Harvester 666 - engine

Specs	International Harvester 644	International Harvester 666
Fuel type	Diesel	Diesel
Engine producer	International Harvester	International Harvester
Engine model	International Harvester	International Harvester D312
Engine type	Diesel (diesel engine)	Diesel (diesel engine)
Engine capacity	3.4 l.	5.1 l.
Strokes, qty	n.d.	n.d.
Cylinders	4	6
Compression	n.d.	n.d.
Bore	98 mm	98 mm
Stroke	111 mm	112 mm
Maximum torque	n.d.	n.d.
Air filter	n.d.	n.d.
Fuel filter	n.d.	n.d.
Fuel filter chambers, qty	n.d.	n.d.
Oil filter	n.d.	n.d.
Oil pump	n.d.	n.d.
Speed control (control)	n.d.	n.d.
Injection pump	n.d.	n.d.
Injectors	n.d.	n.d.
Injection pressure	n.d.	n.d.
Cooling system	liquid cooled engine	liquid cooled engine
Forced cooling	n.d.	n.d.
Cooler	Yes	Yes
Thermostat	Yes	Yes
Cooler type	tubular-plate cooler	tubular-plate cooler
Coolant system capacity	n.d.	n.d.
Clutch	n.d.	n.d.

International Harvester 644 vs International Harvester 666 - turbocharger

Specs	International Harvester 644	International Harvester 666
Turbocharger	No	No
Dual turbocharger	Not applicable	Not applicable
Intercooler	Not applicable	Not applicable
Aftercooler	Not applicable	Not applicable
Wastegate valve	Not applicable	Not applicable
Variable geometry	Not applicable	Not applicable
Additional parameters	–	–

International Harvester 644 vs International Harvester 666 - electronics

Specs	International Harvester 644	International Harvester 666
Supply voltage starter (V)	n.d.	12 V
Ground	n.d.	n.d.
Battery (V)	n.d.	12 V
Battery, qty	n.d.	1
Charging system	Generator	Generator
Charging system producer	n.d.	n.d.
Ignition	Manual	Manual
Rear stop lamp	Yes	Yes
Rear agricultural lamp	n.d.	n.d.
Cock lamp	No	No

International Harvester 644 vs International Harvester 666 - PTO

Specs	International Harvester 644	International Harvester 666
PTO rpm	540 rpm	540 rpm
PTO control	manual	manual

International Harvester 644 vs International Harvester 666 - brakes

Specs	International Harvester 644	International Harvester 666
ABS	No	No
Brake assist	No	No
Braking system	n.d.	n.d.
Differential	No	No
Brake type	n.d.	disc brakes, dry brakes
Discs	–	Single

International Harvester 644 vs International Harvester 666 - dimensions

Specs	International Harvester 644	International Harvester 666
Weight	from 2880 kg (depending by model)	from 3199 kg (depending by model)
Weight with ROPS	n.d.	n.d.
Weight with cab	n.d.	n.d.
Length	3780 mm	n.d.
Height	2490 mm	n.d.
Width	n.d.	n.d.
Clearance	n.d.	n.d.
Rear clearance	n.d.	n.d.
Front track width	n.d.	n.d.
Rear track width	n.d.	n.d.
Wheelbase	2230 mm	2610 mm
Front tires	7.50-16	7.50-16
Rear tires	n.d.	n.d.
Max. mass of the trailer without brakes	1500 kg	1500 kg
Max. mass of the trailer with brakes	n.d.	n.d.
Max. axle load	n.d.	n.d.
Max. total weight	n.d.	n.d.
Turning radius	n.d.	n.d.

International Harvester 644 vs International Harvester 666 - drive

Specs	International Harvester 644	International Harvester 666
Drive system	4x2, 2WD (depending by model)	4x2, 2WD (depending by model)
Additional	one wheel drive	one wheel drive
Permanent 4-wheel drive	n.d.	n.d.
Permanent systems that constantly power all the wheels	n/a	n/a
Dynamic allocation of power between the axles	n/a	n/a
Independent Link Suspension	None	None
Articulated suspension	–	–
Crawler drive	No	No
Hydrostatic steering	No	Yes
Differential	n.d.	n.d.
Steering	rod	rod
Front rods	n.d.	n.d.
Rear planetary drives	n.d.	n.d.
Front planetary drives	n.d.	n.d.

International Harvester 644 vs International Harvester 666 - hydraulics

Specs	International Harvester 644	International Harvester 666
Three-point hitch	n.d.	n.d.
Three-point hitch type	n.d.	n.d.
Three-point hitch performance	n.d.	n.d.
Three-point hitch pressure	n.d.	n.d.
Load Sensing	No	No
Closed	n.d.	n.d.
Central	No	No
Constant flow	No	No
Constant pressure	No	No
Control system	n.d.	n.d.
Pump	n.d.	n.d.
Two-section distributor	n.d.	n.d.
Quick couplings	n.d.	n.d.
Auto Lift	n.d.	n.d.

International Harvester 644 vs International Harvester 666 - transmission

Specs	International Harvester 644	International Harvester 666
Synchronous transmission	n.d.	n.d.
Transmission mechanically synchronized	n/a	n/a
PowerShift	No	No
PowerShuttle	No	No
Additional	–	–
Hydrostatic transmission	n.d.	Yes
Forward gears	8	unlimited (ranges: - 1)
Reverse gears	4	unlimited (ranges: - 1)
Creeper	n.d.	n.d.

International Harvester 644 vs International Harvester 666 - equipment

Specs	International Harvester 644	International Harvester 666
Clevis	Yes (???)	Yes (???)
Lower catch	n.d.	n.d.
Air conditioning	n.d.	n.d.