Cover, wheel, super deluxe

Years 1999, 2002, 2004–05 Models 2 Factory citations 7

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Also documented for Chevrolet

Documented applications

Century — W-body (1997–2005)

1999, 2002, 2004–2005 Factory-verified

the 2004 and 2005 lists print PO8 (letter O); P08 in the 1999 and 2002 lists and in GM's other lists with the same wording

GM factory document — 1999 buick century rpo code list, p.1.
GM factory document — 2002 buick century rpo code list, p.1.
GM factory document — 2004 buick century rpo code list, p.1.
GM factory document — 2005 buick century rpo code list, p.1.

Regal — W-body (1997–2004)

1999, 2002, 2004 Factory-verified

the 2004 list prints PO8 (letter O); P08 in the 1999 and 2002 lists and in GM's other lists with the same wording

GM factory document — 1999 buick regal rpo code list, p.1.
GM factory document — 2002 buick regal rpo code list, p.1.
GM factory document — 2004 buick regal rpo code list, p.1.

This page aggregates every documented appearance of P08 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.