When doing replacement or upgrading on 1971 – 1979 Fiat 128, the bulb size guide is necessary for you to take the reference.
Jump to corresponding car model with the catalog bellow.

• Fiat 128 Bulb Size Guide

1971 – 1979 Fiat 128 Bulb Size Guide
High Beam and Low Beam Headlight	1971 – 1979	6014
Back Up Light	1973 – 1979	1156
Brake	1971 – 1979	1157
Front Side Marker	1971 – 1979	194
Front Turn Signal	1973	1156
	1971 – 1972, 1974 – 1979	1157
License Plate	1979	67
	1971 – 1972, 1974 – 1978	89
	1973	97
Parking Light	1971 – 1972, 1974 – 1979	1157
	1973	97
Rear Side Marker	1971 – 1979	194
Rear Turn Signal	1971 – 1979	1156
Tail Light	1971 – 1979	1157