When doing replacement or upgrading on 1977 – 1985 Mazda GLC Hatchback Sedan Wagon, the bulb size guide is necessary for you to take the reference.
Jump to corresponding car model with the catalog bellow.

High Beam and Low Beam Headlight1977 – 1978 6014
1979 – 1982, 1984 – 1985 H6054
Back Up Light1977 – 1982, 1984 – 1985 1156
Brake1977 – 1982, 1984 – 1985 1157
Front Side Marker1984 – 1985 1157
1981 – 1982 194
1979 – 1980 89
Front Turn Signal1977 – 1982, 1984 – 1985 1157
License Plate1977 – 1982, 1984 – 1985 89
Parking Light1977 – 1979, 1984 – 1985 1157
1981 – 1982 194
1980 89
Rear Side Marker1980 – 1982, 1984 – 1985 194
1979 89
Rear Turn Signal1977 – 1978, 1980 – 1982, 1984 – 1985 1156
1979 1157
Tail Light1977 – 1982, 1984 – 1985 1157
High Beam and Low Beam Headlight1983 H6054
Back Up Light1983 1156
Brake1983 1157
Front Side Marker1983 1157
Front Turn Signal1983 1157
License Plate1983 89
Parking Light1983 1157
Rear Side Marker1983 194
Rear Turn Signal1983 1156
Tail Light1983 1157
High Beam and Low Beam Headlight1983 H6054
Back Up Light1983 1156
Brake1983 1157
Front Side Marker1983 194
Front Turn Signal1983 1157
License Plate1983 194
Parking Light1983 194
Rear Side Marker1983 194
Rear Turn Signal1983 1156
Tail Light1983 1157
High Beam and Low Beam Headlight1983 H6054
Back Up Light1983 1156
Brake1983 1157
Front Side Marker1983 1157
Front Turn Signal1983 1157
License Plate1983 89
Parking Light1983 1157
Rear Side Marker1983 194
Rear Turn Signal1983 1156
Tail Light1983 1157