Tractor · Unverified
Farmall 1066
Farmall 1066 — 66 SeriesRow-Crop tractor · 116 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
116 hp
Max power
74.9 kW
Weight
12148 to 13345 pounds
Hover a source tag to verify
Overview
ManufacturerFarmall (a part of International Harvester)Reference
Row-Crop tractorReference
Built in Rock Island, Illinois, USAReference
Total built54,947Reference
Original price was $21,100 in 1976Reference
Two- or four-wheel driveReference
Power steeringReference
Hydraulic dry disc brakesReference
Open operator station. Two-post fixed ROPS available. Cab available with optional air-conditioning.Reference
Engine
International Harvester 6.8L 6-cyl dieselReference
Fuel tank159.0 LReference
Drawbar (claimed)80.5 kWReference
Drawbar (tested)79.0 kWReference
International Harvester DT414Reference
turbocharged dieselReference
6-cylinderReference
liquid-cooledReference
Displacement6.8 LReference
Bore/Stroke109 x 121 mmReference
Air cleanerdual stage dryReference
Rated RPM2400Reference
Rated RPM2600 (after 1973)Reference
Starter volts12Reference
Oil capacity17.0 LReference
Coolant capacity23.7 LReference
Power at rated engine speed86.7 kWReference
Max power74.9 kWReference
Power at rated engine speed84.7 kWReference
Max power63.3 kWReference
Power at rated engine speed93.7 kWReference
Max power79.0 kWReference
Transmission
8-speed gearReference
16-speed two-speed power shiftReference
hydrostaticReference
TypegearReference
Gears8 forward and 4 reverseReference
Clutchdry discReference
Four gears each in high, low, and reverse ranges.Reference
TransmissionTorque AmplifierReference
Typetwo-speed power shiftReference
Gears16 forward and 8 reverseReference
Four gears (1-4) in two ranges (Low/High) with the two-speed Torque Amplifier power shift (TA/direct).Reference
TypehydrostaticReference
Gearsinfinite forward and reverse (two-range)Reference
PTO & Hydraulics
PTO (claimed)94.0 kWReference
PTO (tested)93.7 kWReference
Typeopen centerReference
Pump flow45.4 lpmReference
Total flow79.5 lpmReference
Steering flow34.1 lpmReference
Rear TypeIII/IIReference
Rear lift (at 24"/610mm)2540 kgReference
Rear PTOindependentReference
Rear PTO Type540/1000Reference
Power at rated PTO speed83.7 kWReference
Power at rated PTO speed81.5 kWReference
Power at rated PTO speed88.9 kWReference
Dimensions
Wheelbase266 cmReference
Weight12148 to 13345 poundsReference
Front tire11L-15Reference
Rear tire18.4-38Reference
Ag front11L-15Reference
Ag rear18.4-38Reference
Length419 cmReference
Width248 cmReference
Height (exhaust)281 cmReference
Clearance (drawbar)40 cmReference
Bar rear axle82 mmReference
Operating5510 kgReference
Operating5588 kgReference
Operating6053 kgReference
Ballasted6921 kgReference
1066 Serial Number Location
Serial number plate on the left side of the tractor's clutch housing.Reference
1066 Serial Numbers
19717101Reference
197212677Reference
197324205Reference
197434949Reference
197546855Reference
197656672Reference
FAQ: How to read a serial number table.Reference
Test results
NTTL 1081: diesel Torque Amplifier 2WDReference
NTTL 1083: diesel hydrostatic 2WDReference
NTTL 1124: diesel gear 2WDReference
Diesel Torque Amplifier 2WDOctober 1 - 21, 1971Link: Nebraska Tractor Test 1081 fileReference
PTO performanceReference
Fuel use29.1 l/hourReference
Fuel use25.7 l/hourReference
Drawbar performanceReference
Fuel use28.8 l/hourReference
Gear 1-Hi-TA used for power test.Reference
Max pull5273 kgReference
Gear 3-Lo-TA used for pull test.Reference
Diesel hydrostatic 2WDOctober 7 - 25, 1971Link: Nebraska Tractor Test 1083 fileReference
Fuel use29.9 l/hourReference
Fuel use26.5 l/hourReference
Fuel use30.3 l/hourReference
Gear 5.4 MPH used for power test.Reference
Max pull4343 kgReference
Gear 3.1 MPH used for pull test.Reference
Diesel gear 2WDApril 17 - 27, 1973Link: Nebraska Tractor Test 1124 fileReference
Fuel use31.8 l/hourReference
Fuel use27.6 l/hourReference
Fuel use31.4 l/hourReference
Max pull5896 kgReference
Gear 2-Lo-Direct used for pull test.Reference
Speeds
With 18.4-38 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.