When doing replacement or upgrading on 1987 – 1993 Cadillac Allante, the bulb size guide is necessary for you to take the reference.
Jump to corresponding car model with the catalog bellow.

Low Beam Headlight 1987 – 1993 9004
High Beam Headlight 1987 – 1993 9004
Front Fog Light 1987 – 1993 H3-55W
Back Up Light 1987 – 1993 1156
Brake 1987 – 1993 2057
Dome Light 1990 – 1993 912
Front Side Marker 1987 – 1993 194
Front Turn Signal 1990 – 1993 2057
1987 – 1989 2057NA
License Plate 1987 – 1993 194
Parking Light 1987 – 1989 2057
1990 – 1993 2057NA
Rear Side Marker 1987 – 1993 194
Rear Turn Signal 1987 – 1993 2057
Tail Light 1987 – 1993 2057
Courtesy 1990 – 1993 168
1987 – 1989 DE3175
Engine Compartment Light 1987 – 1989, 1992 1156
1990 – 1991, 1993 906
Glove Box 1990 – 1993 1816
Map Light 1990 – 1993 906
Trunk 1990 – 1993 1003
1987 – 1989 DE3175