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     Original Farmall Hundred Series 1954-1958
    Original Farmall Hundred Series 1954-1958

    Farmall 1066

    Farmall 1066 tractor photo
    1971 - 1976

    Note: the Farmall model 1066 is the same as the International Harvester 1066. The following data is from the 1066 listing.

    The hydrostatic drive 1066 Hydro was later renamed the Hydro 100. This was due to confusion over drawbar horsepower. The hydrostatic drive took a lot of power to operate, and the 1066 Hydro had much less power than a gear-driven 1066. Torque Amplifer (TA) was optional. The 1066 engine was altered in 1973 to increase horsepower.


    Manufacturer:International Harvester
    Total built:54,947
    Original price (USD):$21,100 (1976)


    1066 Hi-Clear:high-crop

    Farmall 1066 Engine:

       International Harvester 6.8L 6-cyl diesel
    full engine details ...


    Fuel:42 gal [159.0 L]

    3-Point Hitch:

    Rear Type:2

    Power Take-off (PTO):

    Rear PTO:independent
    Rear RPMs:540/1000

    Dimensions & Tires:

    Wheelbase:105 inches [266 cm]
    Weight:12148 to 15260 pounds
    Front tire:11L-15
    Rear tire:18.4-38
    full dimensions and tires ...

    1066 Serial Numbers:

    Location:Clutch housing, left side
    photo of 1066 serial number

    1971: 7101
    1972: 12677
    1973: 24205
    1974: 34949
    1975: 46855
    1976: 56672

    how to read serial numbers...


    Farmall 1066 Power:

    Drawbar (claimed):108 hp [80.5 kW]
    PTO (claimed):126 hp [94.0 kW]
    Drawbar (tested):105.95 hp [79.0 kW]
    PTO (tested):125.68 hp [93.7 kW]
    power test details ...


    Chassis:4x2 2WD
     4x4 MFWD 4WD (optional)
    Steering:hydrostatic power
    Brakes:hydraulic dry disc
    Cab:Open operator station.


    Type:open center



    Page information:

    Last update:July 30, 2012
    Copyright:Copyright 2012 TractorData LLC
    Copyright 2000-2012 - TractorData LLC. Notice: Every attempt is made to ensure the data listed is accurate. However, differences between sources, incomplete listings, errors, and data entry mistakes do occur. Consult official literature from the manufacturer before attempting any service or repair.