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Fiat 45-66DT tire size

Factory tire pairs for the Fiat 45-66DT:

    Rear12.4-28ASFront7.5-20AS
    Rear12.4-28AS
    Outside dia.
    ≈1,247mm
    Width
    315mm
    Rim
    28″
    radial equivalent: 320/85R28 (12.4R28)
    Front7.5-20AS
    Outside dia.
    ≈832mm
    Width
    191mm
    Rim
    20″

    The tires on the tractor may not be original. A different size from the factory one can damage the transmission, especially on 4WD.

    Also written as: Fiat 4566DT · Fiat 45 66DT

    Take it to your tire shop: tractor-size.com

    4WD ratio check and other tools →

    Source: de.wikibooks.org

    FAQ

    What is the front tire size of the Fiat 45-66DT?

    The Fiat 45-66DT comes from the factory with 7.5-20AS front tires.

    What is the rear tire size of the Fiat 45-66DT?

    The Fiat 45-66DT comes from the factory with 12.4-28AS rear tires.

    Can I fit a different tire size on the Fiat 45-66DT?

    Equivalent sizes with a very close outside diameter can be fitted (e.g. the radial equivalent). On 4WD, a changed front/rear ratio can damage the driveline, so check it with the 4WD ratio tool first.

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