The Nissan 240SX side marker requires a 12961 bulb size for proper installation and function. Data for the specified component covers the range from 1995 through 1998.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Nissan 240SX uses the 194 bulb for both front and rear side markers across its entire production span of 1989-1998.
The 194 is classified as a miniature wedge bulb under the T10 designation, a form factor defined by a wedge-shaped base that seats directly into a socket without a separate metal cap or pins.
The 194 operates at 12 volts with a rated wattage of 3.78W, placing it among the lower-draw bulbs in automotive lighting applications.
The 194 carries ANSI standardization recognized in both the United States and Canada, meaning the specification reflects a consistent electrical and physical standard across North American markets.
Because the 194 bulb is shared between the front and rear side marker positions on the 240SX, a single bulb type services both locations on the vehicle.
The T10 wedge base is a widely produced form factor, and the 194 designation specifically identifies the electrical characteristics within that family, so not all T10 bulbs are interchangeable with the 194 despite sharing the same base type.