When doing replacement or upgrading on 1959 - 1983 Buick Estate Wagon, the bulb size guide is necessary for you to take the reference. Jump to the corresponding car model with the catalog below.  
Low Beam Headlight 1976 - 1983 H4656
1959 - 1964, 1970 - 1975 H5006
High Beam Headlight 1976 - 1983 H4651
1959 - 1964, 1970 - 1975 H5001
Back Up Light 1959 - 1964, 1970 - 1983 1156
Brake 1959 - 1960 1034
1961 - 1964, 1970 - 1982 1157
1983 2057
Dome Light 1959 - 1960, 1962 - 1964 1004
1971 194
1973 211-2
1972 212-2
1974 - 1983 561
1961 578
1970 89
Front Side Marker 1970, 1972 - 1975, 1983 194
1976 - 1982 194NA
1971 97
Front Turn Signal 1959 - 1964, 1970 - 1982 1157
1983 2057
License Plate 1964 1155
1977, 1980 - 1982 168
1973 - 1976, 1978 - 1979, 1983 194
1959 - 1963 67
1970 - 1972 97
Parking Light 1959 - 1964, 1970 - 1982 1157
1983 2057NA
Rear Side Marker 1971 1157
1977, 1981 168
1970, 1972 - 1976, 1978 - 1980, 1982 - 1983 194
Rear Turn Signal 1959, 1961 - 1962 1034
1980 - 1981 1156
1960, 1963 - 1964, 1970 - 1979, 1982 1157
1983 2057
Tail Light 1959 - 1963 1034
1964, 1970 - 1976, 1978 - 1980 1157
1977, 1981 - 1982 168
1983 2057
Luggage Compartment 1978 - 1980, 1983 1003
1971 194
1970, 1972 - 1977, 1981 - 1982 89
Courtesy 1981 161
1983 168
1971 194
1975 - 1980, 1982 562
1961 - 1962 68
1970 89
1963 - 1964, 1972 - 1974 90
Engine Compartment Light 1972 - 1973, 1977 - 1982 1004
1962 - 1964, 1970, 1976 89
Glove Box 1980 - 1982 1891
1964, 1970, 1972 - 1979 1893
1983 1895
1959 - 1963 57
Map Light 1980, 1982 1004
1971 194
1974 561
1972 - 1973, 1975 - 1979, 1981 578
1959 - 1960, 1962 - 1964 90
Radio Display 1974 1816
1959 1891
1962, 1970, 1972 - 1973, 1975 - 1982 1893
1983 194
1960 57
Trunk 1959 - 1964 89

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