Pontiac Fiero front and rear side marker bulbs both utilize a 194 bulb size specification. The replacement chart covers vehicle production spanning 1984 to 1988.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Pontiac Fiero uses the 194 bulb for both front and rear side markers across its entire production run of 1984-1988.
The 194 is an ANSI-standardized bulb type, meaning its specifications are governed by a recognized North American standard applicable in both the United States and Canada.
The 194 bulb follows the T10 miniature wedge form factor, which uses a tapering plastic base that presses directly into a socket without a separate metal base or locking pins.
Operating voltage for the 194 bulb is rated at 12 volts, consistent with standard automotive electrical systems.
The 194 bulb carries a power rating of 3.78 watts, placing it in the low-wattage category typical of side marker and courtesy lighting applications.
Because the Pontiac Fiero shares the same 194 bulb specification across all model years for both front and rear side marker positions, a single bulb type services all four side marker sockets on the vehicle.
The T10 wedge base design of the 194 bulb is widely used across many vehicle makes and models, which reflects a broad availability of this bulb type in the automotive aftermarket.
The front and rear side marker positions on the Fiero are not differentiated by bulb type, wattage, or voltage, indicating identical electrical and physical socket requirements at both locations.