
PIAA 15223 H3 Xtreme White Plus
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Used for: Fog Light Bulb Front
Used for: Fog Light Bulb Front
Used for: Headlight Bulb High Beam
Used for: Back Up Reverse Light Bulb
Used for: Brake Light Bulb, Tail Light Bulb Outer
Used for: License Plate Light Bulb
Used for: License Plate Light Bulb
Used for: Parking Light Bulb
Used for: Side Marker Light Bulb Front, Side Marker Light Bulb Rear
Used for: Stepwell Light Bulb, Interior Door Light Bulb, Trunk or Cargo Area Light
Used for: Tail Light Bulb Inner
Used for: Tail Light Bulb Inner
Used for: Turn Signal Light Bulb Front, Turn Signal Light Bulb Rear
Used for: Ash Tray Light Bulb(Compare to original - Option 1), Automatic Transmission Indicator Light Bulb, High Beam Indicator Light Bulb, Parking Brake Indicator Light Bulb, Turn Signal Indicator Light Bulb
Used for: Ash Tray Light Bulb(Compare to original - Option 2)
Used for: Dome Light Bulb, Glove Box Light Bulb, Map Light Bulb
Used for: Instrument Panel Light Bulb
This 1991 Acura NSX bulb size guide is designed to help you verify the correct replacement bulb by lighting position, so you can match the right part before you buy. Because the NSX could vary by trim, market, and lighting package, it is smart to compare the bulb chart with the actual lamp on your car, especially for exterior bulbs and interior courtesy lights.
Use this page as a quick reference for common service points such as the headlights, tail lamps, turn signals, license plate lights, dome and map lights, and dash indicators. The 1991 Acura NSX uses a mix of halogen, incandescent, and LED applications, so checking each location separately helps avoid ordering the wrong bulb size or style.
For best fitment, confirm whether your NSX is equipped with factory halogen lighting or any aftermarket conversion, since that can change the bulb type needed at the front of the car. Trim and package differences may also affect interior and exterior lamp fitment, and some replacement bulbs may be listed as direct-fit equivalents while others are only comparable to the original. If you are upgrading to LED, make sure the bulb matches the socket and that the light output is suitable for the housing, because some aftermarket LED conversions can cause glare, warning issues, or uneven beam patterns. When possible, remove the installed bulb and compare the base, connector, and markings before purchasing a replacement.
The listed high beam headlight bulb is 9005 for the 1991 Acura NSX.
The brake light bulb is listed as 2057R, and the outer tail light bulb is also listed as 2057R.
The front turn signal light bulb is listed as 3497.
The rear turn signal light bulb is listed as 3497.
The license plate light bulb is listed as 194 or 7441.
The front side marker light bulb is listed as 168NA.
The rear side marker light bulb is listed as 168NA.
The back up reverse light bulb is listed as 1156.
The parking light bulb is listed as 3652.
The front fog light bulb is listed as H3C or H3, depending on the setup.
Both the dome light and map light are listed as DE3022.
The glove box light bulb is listed as DE3022.
The trunk or cargo area light is listed as DE3021.
The interior door light bulb and stepwell light bulb are both listed as DE3021.
The instrument panel light bulb is listed as 158.
Two ash tray light options are shown: 2721 for one comparison listing and 74 for the other comparison listing. Check the installed bulb before ordering.
The center high mount stop light bulb is listed as LED.
Because trim, market, body style, and lighting package can vary, the installed bulb is the best confirmation for fitment, especially on a 1991 Acura NSX with mixed interior and exterior bulb types.