The Acura NSX side marker utilizes a 168 bulb size for illumination purposes within the exterior lighting assembly. Data provided for the specific component covers a span from 1995 through 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 168 bulb for both the front and rear side marker positions across the full 1991-2005 model range.
The 168 bulb is an ANSI-standardized type, meaning its electrical and physical specifications are defined by a recognized North American standard applicable in both the United States and Canada.
It belongs to the T10 wedge family, a miniature wedge-base format in which the base itself acts as the electrical contact, with no separate metal pins or bayonet fittings.
The 168 operates at 12 volts and draws 4.9 watts, placing it in the low-wattage range typical of side marker and parking light applications.
Because the same bulb number is specified for both the front and rear side marker positions on the Acura NSX, a single bulb type serves all four side marker sockets on the vehicle.
The T10 wedge format is shared by several closely related bulb numbers, including the 194 and 147, but these carry different wattage ratings and are not direct substitutes for the 168 without confirming socket and circuit compatibility.
The 168 designation is an ANSI trade number, and bulbs sold under equivalent international designations such as W5W share the same T10 wedge base and 12-volt rating, though wattage values may vary slightly between standards.