When doing replacement or upgrading on 1991 – 2005 Buick Park Avenue, the bulb size guide is necessary for you to take the reference.
Jump to corresponding car model with the catalog bellow.

Low Beam Headlight1991 – 2005 9006
High Beam Headlight1991 – 2005 9005
Back Up Light1991 – 1996 1156
1997 – 2005 3057
Brake1991 2057
1992 – 2005 3057
Dome Light1991, 1993 562
Front Side Marker1997 – 2005 194
1991 – 1996 194NA
Front Turn Signal1991 – 1996 2057
1997 – 2005 3057
License Plate1991 – 2005 194
Parking Light1991 – 1996 2057NA
1997 – 2005 3057
Rear Side Marker1997 – 2005 194
1991 – 1996 24
Rear Turn Signal1991 2057
1992 – 2005 3057
Tail Light1991 194
1992 – 2005 3057
Center High Mount Stop Light1991 – 2005 1156
Courtesy1991 – 1993, 1995 – 1996 168
1994 PC168
Engine Compartment Light1991 1003
1992 – 2005 561
Glove Box1991 – 2005 194
Interior Door1997 – 2005 74
Map Light1991 – 1993 562
Trunk1992 1003
1991 105
1993 – 1995 1156
1996 – 2005 578