Fiat Brava high beam headlight bulbs use H5001 size while low beam headlight bulbs use H5006 size. The replacement chart covers vehicle production spanning 1978 to 1981.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Fiat Brava uses two distinct sealed beam headlight units across its 1978-1981 model years: the H5001 for high beam and the H5006 for low beam.
Both the H5001 and H5006 are ANSI-standardized sealed beam units, meaning they conform to a shared North American specification used across the United States and Canada.
The H5001 is a 4-inch square sealed beam unit operating at 12 volts. Because it is a sealed beam design, the lens, reflector, and filament are fused into a single assembly, and the entire unit is replaced rather than an internal bulb.
The H5006 is a 5.75-inch round sealed beam unit, also rated at 12 volts and also replaced as a complete assembly rather than by an internal component.
The physical shape difference between the two units, square for the H5001 and round for the H5006, means the high beam and low beam housings are not interchangeable with each other.
The ANSI standardization of both units means that compatible replacements from multiple manufacturers are generally available, provided the correct designation (H5001 or H5006) is matched precisely.
The Fiat Brava (1978-1981) uses the same H5001 high beam and H5006 low beam specifications without variation across all four model years covered in these records.