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    Fuzzy match across codes, option descriptions, and model aliases. Every result is graded and, where the factory documents it, cited.
    U25 / U26 / U27 / U28 / U29 Confirmed

    Chevrolet · Regular Production Option

    Luggage / underhood / glovebox / ashtray / courtesy lamps

    Years 1970–79 Models 1

    Documented applications

    Related codes · mentioned in these notes

    ZJ9

    This page aggregates every documented appearance of U25 / U26 / U27 / U28 / U29 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.