When doing replacement or upgrading on 1958 – 1996 Buick Roadmaster Sedan Wagon, the bulb size guide is necessary for you to take the reference.

1958 – 1991 Buick Roadmaster Bulb Size Guide
Low Beam Headlight	1958	H5006
High Beam Headlight	1958	H5001
High Beam and Low Beam Headlight	1991	9004
Back Up Light	1958	1156
	1991	2057
Brake	1958	1034
	1991	2057
Dome Light	1958	1004
	1991	561
Front Side Marker	1991	24
Front Turn Signal	1958	1157
	1991	2057
License Plate	1991	24
	1958	67
Parking Light	1958	1157
	1991	2057NA
Rear Side Marker	1991	194
Rear Turn Signal	1958	1034
	1991	2057
Tail Light	1958	1034
	1991	2057
Center High Mount Stop Light	1991	561
Courtesy	1991	194
Engine Compartment Light	1991	561
Glove Box	1991	1891
Map Light	1991	192
	1958	90
Radio Display	1958	1891
	1991	37
Rear Reading Light	1991	194
Trunk	1991	1003
	1958	89

1992 – 1996 Buick Roadmaster Sedan Bulb Size Guide
High Beam and Low Beam Headlight	1992 – 1996	9004
Back Up Light	1992 – 1996	2057
Brake	1992 – 1996	2057
Dome Light	1992 – 1996	561
Front Side Marker	1992 – 1996	194
Front Turn Signal	1992 – 1996	2057
License Plate	1992 – 1996	194
Parking Light	1992 – 1996	2057NA
Rear Side Marker	1992 – 1996	194
Rear Turn Signal	1992 – 1996	2057
Center High Mount Stop Light	1992 – 1996	1156
Courtesy	1992 – 1996	194
Engine Compartment Light	1992, 1995 – 1996	561
	1993 – 1994	562
Glove Box	1992 – 1996	194
Inner Tail Light	1992 – 1996	194
Map Light	1992 – 1996	192
Outer Tail Light	1992 – 1996	2057
Radio Display	1992 – 1996	37
Rear Reading Light	1992 – 1996	194
Trunk	1992 – 1996	920

1992 – 1996 Buick Roadmaster Wagon Bulb Size Guide
High Beam and Low Beam Headlight	1992 – 1996	9004
Back Up Light	1992 – 1996	2057
Brake	1992 – 1996	2057
Dome Light	1992 – 1996	561
Front Side Marker	1992 – 1996	24
Front Turn Signal	1992 – 1996	3057
License Plate	1992 – 1996	24
Parking Light	1992 – 1996	3057NA
Rear Side Marker	1992 – 1996	194
Rear Turn Signal	1992 – 1996	2057
Tail Light	1992 – 1996	2057
Center High Mount Stop Light	1992 – 1996	561
Courtesy	1992 – 1996	194
Engine Compartment Light	1992, 1995 – 1996	561
	1993 – 1994	562
Glove Box	1992 – 1996	194
Map Light	1992 – 1996	192
Radio Display	1992 – 1996	37
Rear Reading Light	1992 – 1996	194
Trunk	1992 – 1996	920