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    International Harvester 686

    International Harvester 686 tractor photo
    1976 - 1980
    Previous model:International Harvester 666

    The International Harvester 686 is nearly identical to the IH 666, it was simply renamed when the 86 series arrived in 1976. One major change did occur in 1979, when the 310 diesel replaced the 312.


    Manufacturer:International Harvester
    Total built:6,000
    Original price (USD):$14,700 (1980)

    International Harvester 686 Engines:

       International Harvester 5.1L 6-cyl diesel
       International Harvester 4.8L 6-cyl gasoline
    full engine details ...


    Fuel:31 gal [117.3 L]
    Hydraulic system:16 gal [60.6 L]

    3-Point Hitch:

    Rear Type:2

    Power Take-off (PTO):

    Rear PTO:independent
    Rear RPM:540

    Dimensions & Tires:

    Wheelbase:103 inches [261 cm]
    Weight:7770 to 10340 pounds
    Front tire:7.50-16
    Rear tire:15.5-38
    full dimensions and tires ...

    686 Serial Numbers:

    Location:Clutch housing on right side.
    1976: 7500
    1977: 7729
    1978: 9899
    1979: 11417
    1980: 12923

    how to read serial numbers...


    International Harvester 686 Power:

    Drawbar (tested):58.01 hp [43.3 kW]
    PTO (tested):66.36 hp [49.5 kW]
    power test details ...


    Chassis:4x2 2WD
    Steering:hydrostatic power


    Capacity:16 gal [60.6 L]
    Total flow:12 gpm [45.4 lpm]



    Page information:

    Last update:September 26, 2012
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