The Acura NSX uses a 3497 bulb size for both front and rear turn signal applications. The replacement chart covers vehicle production spanning 1991 to 2005.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Acura NSX uses the 3497 bulb for both front and rear turn signals across its entire 1991-2005 production run.
The 3497 is an ANSI-standardized bulb type recognized in both the United States and Canada.
It is a single-filament bulb, meaning it serves one lighting function rather than combining two, such as stop and tail, into a shared unit.
The 3497 operates at 12 volts and draws 21 watts, which is a standard load rating typical of dedicated turn signal applications in passenger vehicles.
Its base type is the BA15s bayonet mount, a single-contact bayonet fitting where the "s" denotes a single contact pin offset to one side of the base.
The 3497 is a variant of the widely used 1156 bulb type, sharing the same BA15s base and general electrical characteristics, though the two are not always interchangeable without confirming exact voltage and wattage tolerances for a given application.
Because the front and rear turn signal positions on the NSX share the same bulb type across all model years, a single replacement bulb covers all four turn signal housings on the vehicle.