When doing replacement or upgrading on 1967 – 1973 Fiat 850, the bulb size guide is necessary for you to take the reference.
Jump to corresponding car model with the catalog bellow.

• Fiat 850 Bulb Size Guide

1967 – 1973 Fiat 850 Bulb Size Guide
High Beam and Low Beam Headlight	1967 – 1973	6014
Back Up Light	1973	1156
Brake	1973	1157
Front Side Marker	1973	194
Front Turn Signal	1973	1157
License Plate	1967 – 1972	89
	1973	97
Parking Light	1973	1157
Rear Side Marker	1973	194
Rear Turn Signal	1967 – 1973	1156
Tail Light	1973	1157