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     Farmall Letter Series Tractors
    Farmall Letter Series Tractors

    Farmall BN

    Farmall BN tractor photo
    1940 - 1947





    The Farmall BN used a different rear end and axle that was eight inches narrower than the Farmall B.
     

    Production:

    Manufacturer:International Harvester
    Total built:14,967
     

    Variants:

    B:full width
    BN:narrow tread
     

    Farmall BN Engine:

       International Harvester 1.9L 4-cyl gasoline
    full engine details ...
     

    Capacity:

    Fuel:10 gal [37.9 L]
    Aux. fuel:1 gal [3.8 L]
     

    Power Take-off (PTO):

    Rear RPMs:540
     

    Dimensions & Tires:

    Wheelbase:72.75 inches [184 cm]
    Weight:1,800 lbs [816 kg]
    Front tire:6x12
    full dimensions and tires ...
     

    BN Serial Numbers:

    Location:Right side of seat support frame

    - Serial numbers unknown -
     
     

    Farmall BN Power:

    PTO (claimed):16 hp [11.9 kW]
    Plows:1 (16 inch)
     

    Mechanical:

    Chassis:4x2 2WD
    Steering:manual
    Brakes:mechanical external contracting band
    Cab:Open operator station
     

    Belt Pulley:

    Diameter:8.5 inches [21 cm]
    Width:6 inches [15 cm]
    RPMs:1157
    Speed:2574 ft/min [784.56 meters/min]
     

    Page information:

    Last update:July 21, 2011
    Copyright:Copyright 2012 TractorData LLC
    Contact:Peter@TractorData.com
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