Alfa Romeo Milano front and rear turn signal bulbs utilize a 1156 size across both locations. The replacement chart covers 1987 to 1989 production years with corresponding bulb specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 1156 is the sole bulb type specified for the Alfa Romeo Milano across all listed model years and positions.
The 1156 operates on a 12-volt electrical system and draws 21 watts, placing it in the standard range for incandescent automotive turn signal applications.
As a single-filament bulb, the 1156 serves a dedicated switching function, meaning it is not designed to handle combined stop and turn signal duties, which require a dual-filament bulb such as the 1157.
The 1156 uses a BA15s bayonet base, where "BA15s" denotes a bayonet fitting with a 15mm collar and a single contact pin at the base.
The 1156 conforms to ANSI standards applicable in the United States and Canada, indicating a standardized specification for socket fit and electrical output within those markets.
The Alfa Romeo Milano (1987-1989) uses the same 1156 bulb for both the front and rear turn signal positions, meaning a single bulb type covers all four turn signal sockets on the vehicle.
Because the front and rear turn signals share the same bulb type, a 1156 installed in a front socket is not interchangeable with a dual-filament bulb without a corresponding socket modification, as the BA15s base is keyed differently from the BA15d base used on two-filament alternatives.