Tractor · 1972Unverified
International Harvester A-766
International Harvester A-766 — 66A Series · 80 hp. Reference specifications; pending source verification.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
80 hp
Weight
4672 kg
Hover a source tag to verify
Overview
ManufacturerInternational HarvesterReference
Row-Crop tractorReference
Built in Geelong, AustraliaReference
Two-wheel driveReference
Final drivesspur gearReference
Power steeringReference
Hydraulic dry disc brakesReference
Open operator station. Cab optional.Reference
Engine
International Harvester 5.1L 6-cyl dieselReference
Fuel tank140.0 LReference
Engine73.1 kWReference
International Harvester D-310Reference
dieselReference
6-cylinderReference
liquid-cooled inlineReference
Displacement5.1 LReference
Bore/Stroke98 x 111 mmReference
Power73.1 kWReference
Air cleanerdual stage dryReference
Compression16:1Reference
Rated RPM2300Reference
Torque336.3 NmReference
Torque RPM1600Reference
StarterelectricReference
Starter volts12Reference
Transmission
8-speed sliding gearReference
16-speed two-speed power shiftReference
Typesliding gearReference
Gears8 forward and 4 reverseReference
Clutchdry discReference
Four gears (1-4) in low and high ranges.Reference
TransmissionTorque AmplifierReference
Typetwo-speed power shiftReference
Gears16 forward and 8 reverseReference
Four gears (1-4) in two ranges (low/high) with the Torque Amplifier (TA) power shift. The TA allows a shift-on-the-move between direct drive and a lower speed.Reference
PTO & Hydraulics
PTO (claimed)59.7 kWReference
Typeopen centerReference
Pump flow45.4 lpmReference
Rear TypeIIReference
Rear PTOindependentReference
Rear PTO Type540/1000Reference
Dimensions
Wheelbase266 cmReference
Weight4672 kgReference
Front tire9.5L-15Reference
Rear tire18.4-34Reference
Ag front9.5L-15Reference
Ag rear18.4-34Reference
Length395 cmReference
Width231 cmReference
Height (steering wheel)215 cmReference
Operating weight4672 kgReference
Ballasted weight5388 kgReference
Front tread152 to 213 cmReference
Rear tread142 to 254 cmReference
A-766 Serial Numbers
Location:Left side of clutch housingReference
1972501Reference
19731140Reference
19741811Reference
19752553Reference
19763270Reference
19773999Reference
19784604Reference
Final4771Reference
FAQ: How to read a serial number table.Reference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.