When doing replacement or upgrading on 1965 – 1992 Dodge Monaco Royal, the bulb size guide is necessary for you to take the reference.
Jump to corresponding car model with the catalog bellow.

Low Beam Headlight1990 – 1992 9006
1977 – 1978 H4656
1965 – 1976 H5006
High Beam Headlight1990 – 1992 9005
1977 – 1978 H4651
1965 – 1976 H5001
Back Up Light1965 – 1978, 1990 – 1992 1156
Brake1965 – 1967 1034
1968 – 1978 1157
1990 – 1992 2057
Dome Light1965 – 1968 1004
1969 – 1970, 1972 – 1973, 1977 211-2
1990 – 1992 562
1971 57
1974 – 1976, 1978 578
Front Side Marker1977 1157NA
1973 – 1976, 1978 168
1968 1895
1972, 1990 – 1992 194
1969 – 1971 67
Front Turn Signal1965 – 1978 1157
1990 – 1992 2057
License Plate1973, 1978, 1990 – 1992 168
1965 – 1970 67
1971 – 1972, 1974 – 1977 97
Parking Light1965 – 1973, 1977 – 1978 1157
1974 – 1976 1157NA
1990 – 1992 2057
Rear Side Marker1973, 1978 168
1968 1895
1972, 1974 – 1977, 1990 – 1992 194
1969 – 1971 67
Rear Turn Signal1968 1034
1978 1156
1965 – 1967, 1969 – 1977 1157
1990 – 1992 2057
Tail Light1965 – 1968 1034
1969 – 1978 1157
1990 – 1992 2057
Center High Mount Stop Light1990 – 1992 912
Courtesy1971 158
1978 168
1990 – 1992 74
1965 – 1970, 1972 – 1977 90
Engine Compartment Light1974 – 1977 1003
1965 – 1970, 1972 – 1973, 1978 1004
1990 – 1992 105
Glove Box1971 1816
1965 – 1970, 1990 – 1992 1891
1972 – 1978 1893
Map Light1965 1004
1971 1895
1974 – 1978 562
1968 89
1966 – 1967, 1969 – 1970 90
1990 – 1992 906
Radio Display1968 – 1970 1816
1965 – 1967, 1974 – 1975 1893
1976 – 1978 194
Trunk1972 – 1977 1003
1965 – 1970 1004
1971 1895
1978 212-2
1990 – 1992 89
Low Beam Headlight1977 H4656
1975 – 1976 H5006
High Beam Headlight1977 H4651
1975 – 1976 H5001
Back Up Light1975 – 1977 1156
Brake1975 – 1977 1157
Dome Light1977 211-2
1975 – 1976 578
Front Side Marker1977 1157NA
1975 – 1976 168
Front Turn Signal1975 – 1977 1157
License Plate1975 – 1977 97
Parking Light1977 1157
1975 – 1976 1157NA
Rear Side Marker1975 – 1977 194
Rear Turn Signal1975 – 1977 1157
Tail Light1975 – 1977 1157
Courtesy1975 – 1977 90
Engine Compartment Light1975 – 1977 1003
Glove Box1975 – 1977 1893
Map Light1975 – 1977 562
Radio Display1975 1893
1976 – 1977 194
Trunk1975 – 1977 1003