The Iveco EuroTurbo 230T uses 1156 bulb size for both front and rear turn signal applications. The replacement chart covers 1987 to 1988 vehicle production years with corresponding bulb size 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 across all listed turn signal positions on the Iveco EuroTurbo 230T, appearing in both the front and rear turn signal applications for the 1987-1988 model years.
The 1156 is an ANSI-standardized bulb used in the United States and Canada, operating at 12 volts with a 21-watt output.
As a single-filament bulb, the 1156 serves one electrical function per unit, which in this context is dedicated turn signal operation rather than a combined stop and turn signal role.
The 1156 uses a BA15s bayonet base, a single-contact fitting where the "s" denotes a single pin, distinguishing it from the dual-contact BA15d variant used in two-filament applications.
The uniform use of the 1156 across both front and rear positions on the Iveco EuroTurbo 230T means a single bulb type covers all four turn signal sockets on the vehicle.
The BA15s base is not interchangeable with the BA15d base despite sharing the same 15mm collar width, as the pin count and electrical contact configuration differ between the two.