Acura Integra front turn signal bulbs use 1156 size, while rear turn signal bulbs use 1157, 1034NA, or P21W size. The replacement chart covers 1986 to 1993 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 Acura Integra uses the 1156 bulb for both its front and rear turn signals across the 1986-1993 model years.
The 1156 is a single-filament bulb, meaning it is dedicated to one lighting function rather than serving dual purposes such as combined stop and turn signal operation.
It operates on a 12-volt electrical system and draws 21 watts, which is consistent with standard automotive incandescent turn signal applications.
The 1156 uses a BA15s bayonet base, a single-contact fitting where the bulb is inserted and twisted to lock into place.
The 1156 is an ANSI-standardized bulb rated for use in both the United States and Canada, indicating a consistent specification across North American markets.
Because the same bulb type is specified for both the front and rear turn signal positions, the 1156 is interchangeable between those two locations on the Acura Integra within this generation.
The BA15s base designation indicates a single contact at the base, which distinguishes it from the visually similar BA15d base used on dual-filament bulbs such as the 1157. Substituting a dual-contact bulb would result in an incompatible fit.