Tractor · 1971Unverified
International Harvester 966
International Harvester 966 — 66 Series · 96 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
96 hp
Max power
60.0 kW
Weight
11116 to 11700 pounds
Hover a source tag to verify
Overview
ManufacturerInternational HarvesterReference
Row-Crop tractorReference
Built in Rock Island, Illinois, USAReference
Total built21,017Reference
Original price was $18,000 in 1976Reference
Two- or four-wheel driveReference
Power steeringReference
Independent hydraulic dry disc brakesReference
Cab optional with heat and air-conditioning.Reference
Variants
Hi-Clearhigh-crop modelReference
Engine
International Harvester 6.8L 6-cyl dieselReference
Engine84.3 kWReference
Drawbar (claimed)62.6 kWReference
Drawbar (tested)63.5 kWReference
International Harvester D414Reference
dieselReference
6-cylinderReference
liquid-cooledReference
Displacement6.8 LReference
Bore/Stroke109 x 121 mmReference
Power84.3 kWReference
Air cleanerdual dry elementsReference
Rated RPM2400 (early)Reference
Rated RPM2600 (late)Reference
Firing order1-5-3-6-2-4Reference
Oil capacity11.4 LReference
Coolant capacity22.7 LReference
Power at rated engine speed71.6 kWReference
Max power60.0 kWReference
Power at rated engine speed68.1 kWReference
Max power50.8 kWReference
Power at rated engine speed75.2 kWReference
Max power63.5 kWReference
Transmission
8-speed gearReference
16-speed two-speed power shiftReference
hydrostaticReference
TypegearReference
Gears8 forward and 4 reverseReference
Clutchdry discReference
Oil capacity85.2 LReference
Four gears each provided in high, low, and reverse ranges.Reference
TransmissionTorque AmplifierReference
Typetwo-speed power shiftReference
Gears16 forward and 8 reverseReference
The Torque Amplifier (TA) provides a shift-on-the-move underdrive to the standard transmission. In any gear and range, the transmission can be shifted from direct drive (DD) to the slower TA speed by simply pulling the TA lever back. No clutching or stopping is needed.Reference
TypehydrostaticReference
Gearsinfinite forward and reverseReference
The hydrostatic transmission option ended in 1973 when the Hydro 100 began production.Reference
PTO & Hydraulics
PTO (claimed)70.8 kWReference
PTO (tested)75.2 kWReference
Hydraulic system85.2 LReference
Typeopen centerReference
Capacity85.2 LReference
Pressure137.9 barReference
Valves1 to 4Reference
Pump flow45.4 lpmReference
Total flow79.5 lpmReference
Steering flow34.1 lpmReference
Steering press.106.9 barReference
Rear TypeIIReference
Rear lift (at 24"/610mm)1995 kgReference
TypeIH Fast HitchReference
Rear lift2268 kgReference
Rear PTOindependentReference
Rear PTO Type540/1000Reference
Power at rated PTO speed69.7 kWReference
Power at rated PTO speed65.8 kWReference
Power at rated PTO speed75.7 kWReference
Capacities
Fuel140.0 LReference
Dimensions
Wheelbase266 cmReference
Weight11116 to 11700 poundsReference
Front tire9.5L-15Reference
Rear tire18.4-34Reference
Ag front9.5L-15Reference
Ag rear18.4-34Reference
Length419 cmReference
Width248 cmReference
Height (exhaust)266 cmReference
Ground clearance35 cmReference
Bar rear axle82 mmReference
Operating5042 kgReference
Operating5307 kgReference
Ballasted6123 kgReference
966 Serial Numbers
Location:Clutch housing, left sideReference
19717101Reference
197211815Reference
197317794Reference
197422526Reference
197528119Reference
197631772Reference
FAQ: How to read a serial number table.Reference
Electrical
Charging amps32Reference
Batteries2Reference
Battery volts6Reference
Battery AH172Reference
Test results
NTTL 1082: 2400rpm diesel gear/TA 2WDReference
NTTL 1095: diesel hydrostatic 2WDReference
NTTL 1123: 2600rpm diesel gear/TA 2WDReference
2400rpm diesel gear/TA 2WDOctober 5 - 19, 1971Link: Nebraska Tractor Test 1082 fileReference
PTO performanceReference
Fuel use24.6 l/hourReference
Fuel use22.3 l/hourReference
Drawbar performanceReference
Fuel use24.2 l/hourReference
Gear 1-Hi-TA used for power test.Reference
Max pull4554 kgReference
Gear 3-Lo-TA used for pull test.Reference
Diesel hydrostatic 2WDApril 28 - May 12, 1972Link: Nebraska Tractor Test 1095 fileReference
Fuel use27.3 l/hourReference
Fuel use26.9 l/hourReference
Gear 5.4 MPH used for power test.Reference
Max pull4041 kgReference
Gear 2.77 MPH used for pull test.Reference
2600rpm diesel gear/TA 2WDApril 20 - May 17, 1973Link: Nebraska Tractor Test 1123 fileReference
Fuel use26.1 l/hourReference
Max pull4552 kgReference
Speeds
With 18.4-34 rear tires.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.