When doing replacement or upgrading on 1958 – 2005 Buick Century Coupe Sedan Wagon, the bulb size guide is necessary for you to take the reference.
Jump to corresponding car model with the catalog bellow.

Low Beam Headlight 1997 – 2005 9006
1976 – 1977, 1982 – 1985 H4656
1958 H5006
High Beam Headlight 1997 – 2005 9005
1976 – 1977, 1982 – 1985 H4651
1958 H5001
High Beam and Low Beam Headlight 1973 – 1975 H6024
1978 – 1981 H6054
Front Fog Light 1997 – 2003 893
Back Up Light 1958, 1973 – 1985, 1997 – 2005 1156
Brake 1958, 1973 – 1981 1157
1982 – 1985 2057
1997 – 2005 3057
Dome Light 1958 1004
1997 194
1977 211-2
1975 – 1976, 1978 – 1985 561
1973 – 1974 578
1998 – 2005 912
Front Side Marker 1973 – 1977, 1979, 1981 – 1985, 1997 – 2005 194
1978, 1980 194NA
Front Turn Signal 1958, 1973 – 1981 1157
1982 – 1985 2057
1997 – 2005 4157
License Plate 1973 – 1985, 1997 – 2005 194
1958 67
Parking Light 1958, 1973 – 1981 1157
1982 – 1985 2057NA
1997 – 2005 4157
Rear Side Marker 1973 – 1985, 1997 – 2005 194
Rear Turn Signal 1958 1034
1973 – 1981 1157
1982 – 1985 2057
1997 – 2005 3057
Tail Light 1958 1034
1973 – 1981 1157
1982 – 1985 2057
1997 – 1999 3057
Center High Mount Stop Light 1997 – 1999 1156
2000 – 2005 921
Courtesy 1976 – 1977 1004
1973 – 1974, 1978, 1980 – 1981 1445
1998 – 2005 168
1997 194
1979 561
1975, 1982 – 1985 562
Engine Compartment Light 1976 – 1982 1004
1997 – 2003 561
Glove Box 1979, 1981 – 1985 1891
1973 – 1977 1893
1978, 1980 1895
1997 – 2005 194
Inner Tail Light 2000 – 2005 194
Map Light 1983 – 1984 1004
1976 212-2
1975 561
1973 – 1974, 1977 – 1982, 2004 – 2005 578
1958 90
1985, 1997 – 2003 906
Outer Tail Light 2000 – 2005 3057
Radio Display 1973 – 1974 1816
1958 1891
1975 – 1982 1893
1983 – 1985 194
Trunk 1978, 1980 – 1985 1003
1979 562
1958, 1973 – 1976 89
1997 – 2005 920
Low Beam Headlight 1989 – 1996 9006
1986 – 1988 H4703
High Beam Headlight 1989 – 1996 9005
1986 – 1988 H4701
Back Up Light 1986 – 1996 1156
Brake 1987 1157
1986, 1988 2057
1989 – 1996 2397
Dome Light 1988 194
1986 – 1987, 1989 – 1991 561
1992 – 1996 578
Front Side Marker 1986 – 1988 194
1989 – 1996 194NA
Front Turn Signal 1987 1157
1986, 1988 2057
1991 – 1996 2357NA
1989 – 1990 889
License Plate 1986 – 1996 194
Parking Light 1987 1157
1989 – 1990 194NA
1986, 1988 2057NA
1991 – 1996 2357
Rear Side Marker 1986, 1988 – 1996 194
Rear Turn Signal 1987 1157
1986, 1988 2057
1989 – 1996 2397
Tail Light 1987 1157
1986, 1988 2057
1989 – 1996 2397
Center High Mount Stop Light 1986 – 1996 1156
Courtesy 1992 194
1991, 1994 – 1996 561
1988 73
1986 90
1987, 1989 – 1990, 1993 912
Engine Compartment Light 1993 – 1996 561
1986 – 1992 89
Glove Box 1986 – 1996 194
Map Light 1989 – 1991 168
1988 90
1986 – 1987, 1992 – 1996 906
Radio Display 1986 194
Trunk 1986 – 1996 1003
Low Beam Headlight 1989 – 1996 9006
1986 – 1988 H4703
High Beam Headlight 1989 – 1996 9005
1986 – 1988 H4701
Back Up Light 1986 – 1996 1156
Brake 1987 1157
1986, 1988 – 1996 2057
Dome Light 1988 194
1986 – 1987, 1989 – 1991 561
1992 – 1996 578
Front Side Marker 1986 – 1988 194
1989 – 1996 194NA
Front Turn Signal 1987 1157
1986, 1988 2057
1991 – 1996 2357NA
1989 – 1990 889
License Plate 1986 – 1996 194
Parking Light 1987 1157
1989 – 1990 194NA
1986, 1988 2057NA
1991 – 1996 2357
Rear Side Marker 1986, 1988 – 1996 194
Rear Turn Signal 1987 1157
1986, 1988 – 1996 2057
Tail Light 1987 1157
1986, 1988 – 1996 2057
Center High Mount Stop Light 1986 – 1996 561
Courtesy 1992 194
1991, 1994 – 1996 561
1988 73
1986 90
1987, 1989 – 1990, 1993 912
Engine Compartment Light 1993 – 1996 561
1986 – 1992 89
Glove Box 1986 – 1996 194
Map Light 1989 – 1991 168
1988 90
1986 – 1987, 1992 – 1996 906
Radio Display 1986 194
Trunk 1986 – 1996 1003
Low Beam Headlight 1989 – 1993 9006
1986 – 1988 H4703
High Beam Headlight 1989 – 1993 9005
1986 – 1988 H4701
Back Up Light 1986 – 1993 1156
Brake 1987 1157
1986, 1988 2057
1989 – 1993 2397
Dome Light 1988 194
1986 – 1987, 1989 – 1991 561
1992 – 1993 578
Front Side Marker 1986 – 1988 194
1989 – 1993 194NA
Front Turn Signal 1987 1157
1986, 1988 2057
1991 – 1993 2357NA
1989 – 1990 889
License Plate 1986 – 1993 194
Parking Light 1987 1157
1989 – 1990 194NA
1986, 1988 2057NA
1991 – 1993 2357
Rear Side Marker 1986, 1988 – 1993 194
Rear Turn Signal 1987 1157
1986, 1988 2057
1989 – 1993 2397
Tail Light 1987 1157
1986, 1988 2057
1989 – 1993 2397
Center High Mount Stop Light 1986 – 1993 1156
Courtesy 1992 194
1991 561
1988 73
1986 90
1987, 1989 – 1990, 1993 912
Engine Compartment Light 1993 561
1986 – 1992 89
Glove Box 1986 – 1993 194
Map Light 1989 – 1991 168
1988 90
1986 – 1987, 1992 – 1993 906
Radio Display 1986 194
Trunk 1986 – 1993 1003