When doing replacement or upgrading on 1962 – 1970 Buick Wildcat, the bulb size guide is necessary for you to take the reference.
Jump to corresponding car model with the catalog bellow.

Low Beam Headlight1962 – 1970 H5006
High Beam Headlight1962 – 1970 H5001
Back Up Light1962 – 1970 1156
Brake1962 1034
1963 – 1970 1157
Dome Light1962 – 1968 1004
1969 211-2
1970 89
Front Side Marker1970 194
1968 – 1969 194NA
Front Turn Signal1962 – 1970 1157
License Plate1964 1155
1962 – 1963 67
1965 – 1970 97
Parking Light1962 – 1970 1157
Rear Side Marker1968 – 1970 194
Rear Turn Signal1963 1034
1962, 1964 – 1970 1157
Tail Light1962 – 1963 1034
1964 – 1970 1157
Courtesy1962 68
1968 – 1970 89
1963 – 1967 90
Engine Compartment Light1962 – 1970 89
Glove Box1964 – 1970 1893
1962 – 1963 57
Map Light1962 – 1968 90
Radio Display1966 – 1969 1892
1962, 1970 1893
Trunk1962 – 1970 89