Wheel covers, wire, custom, locking

Years 1984–85, 1987, 1990–91, 1996, 1998–99 Models 4 Factory citations 3

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Also described as Wire wheel covers, lockingCover, simulated wire wheel, lockWheel cover, simulated wire wheel

Also documented for Chevrolet GMC Oldsmobile Pontiac

Documented applications

Century — A-body (1982–1996)

1984–1985, 1990–1991, 1996 Single-source

LeSabre — H-body (1992–1999)

1998–1999 Factory-verified

GM factory document — 1998 buick lesabre rpo code list, p.1.
GM factory document — 1999 buick lesabre rpo code list, p.1.

Regal — G-body (1983–1987)

1987 Confirmed

not with Y56 or WE2; gnttype.org's 1987 option sheet

Skylark — N-body (1992–1998)

1998 Factory-verified

GM factory document — 1998 buick skylark rpo code list, p.1.

This page aggregates every documented appearance of N91 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.