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    Fuzzy match across codes, option descriptions, and model aliases. Every result is graded and, where the factory documents it, cited.
    C-49 / C-50 Confirmed

    Oldsmobile · Regular Production Option

    Rear window defogger/defroster

    Years 1968–70 Models 1
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    Also on its own page C-49

    Documented applications

    This page aggregates every documented appearance of C-49 / C-50 in the Oldsmobile reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.