When doing replacement or upgrading on 1971 – 1974 Volkswagen 411 412, the bulb size guide is necessary for you to take the reference.
Jump to corresponding car model with the catalog bellow.

Low Beam Headlight 1971 – 1973 H5006
High Beam Headlight 1971 – 1973 H5001
Brake 1971 – 1973 1157
Front Side Marker 1971 – 1973 97
Front Turn Signal 1971 – 1973 1157
License Plate 1971 – 1973 97
Parking Light 1971 – 1973 1157
Rear Side Marker 1971 – 1973 97
Rear Turn Signal 1971 – 1973 1156
Tail Light 1971 – 1973 1157
High Beam and Low Beam Headlight 1973 – 1974 6014
Back Up Light 1973 – 1974 1156
Brake 1973 – 1974 1156
Front Side Marker 1973 – 1974 1895
Front Turn Signal 1973 – 1974 1157
License Plate 1973 – 1974 89
Parking Light 1973 – 1974 1157
Rear Side Marker 1973 – 1974 1895
Rear Turn Signal 1973 – 1974 1156
Tail Light 1973 – 1974 97