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    Fuzzy match across codes, option descriptions, and model aliases. Every result is graded and, where the factory documents it, cited.

    Source document

    docs/rpo/cadillac/seville-k-body-1986.md

    Interactive view →

    Rendered verbatim from the reference. Factory citations shown as ⛭ GM Heritage — …. For filtering, badges, and crosslinks, use the interactive Seville — K-body (1986–1991) page.

    Cadillac Seville — K-body (third generation) (1986–1991)

    Wikipedia's Seville article gives this generation as a transverse-engine, front-wheel-drive four-door sedan on the K-body platform, built at Detroit/Hamtramck, with production figures for each model year 1986 to 1991 and a Seville Touring Sedan (STS) trim added for 1988. The NICB manuals print the car line Seville in the 1986 to 1991 tables and Seville Touring Sedan in the 1990 and 1991 tables (the OCR text is garbled). No GM order guide, data book, Heritage kit or RPO list for this Seville is in the archive, so only three codes are listed, all from the Wikipedia Seville article, which is one source (with its engine article). Every row is single-source. Two readings are left out: the LW2 code, which the Seville table gives for the 180 hp 4.5L V8 of 1990 but the engine article ties to the 200 hp Allanté version (no code is printed for the 180 hp engine), and the FE2 touring suspension, which Wikipedia dates only through the STS trim contents. No source read ties a transmission, axle, paint, interior or accessory code to this Seville with a year.

    Codes

    Engines

    Code Description Years Models/Notes Confidence
    LT8 Engine, 4.1L V8, HT4100 1986–1987 Wikipedia's engine table for this generation lists the LT8 HT4100 V8 at 130 hp for 1986–1987; its engine article (one source with the Seville article) lists the Seville under this engine; the Eldorado, Riviera and Toronado share the platform but no sibling source prints the code for these years single-source
    L26 Engine, 4.9L V8, HT4900, sequential fuel injection 1991 Wikipedia's engine table lists the L26 HT4900 SFI V8 at 200 hp for 1991; the same article's text says the V8 grew to 4.9L for 1991 with a 4T60E transmission single-source

    Packages & Trims

    Code Description Years Models/Notes Confidence
    YP6 Seville Touring Sedan, Limited Edition 1989 Wikipedia says the first production STSs for 1989 were sold as a Limited Edition with option code YP6; no other source read prints the code single-source

    Sources

    Factory documents (T1)

    No Cadillac factory document for the 1986–1991 Seville is in docs/factory-docs/ or docs/heritage-ocr/, and the brief lists no Heritage kit; no row cites a factory page.

    Other sources