Pontiac Sunbird front side marker bulbs use 194 size, while rear side marker bulbs use 24 or 194 size. The replacement chart covers vehicle production years spanning 1976 to 1994 with corresponding bulb specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Pontiac Sunbird uses two bulb types across its front and rear side marker positions: the 194 and the 24, both of which conform to ANSI standards recognized in the United States and Canada.
The 194 bulb is a T10 miniature wedge type rated at 12 volts and 3.78 watts. Its wedge base design means it requires no separate metal socket, as the glass envelope itself forms the electrical contact.
The 24 bulb is a single-filament type with a BA9s bayonet base, rated at 12 volts and 2 watts. The BA9s base uses a small bayonet fitting with a 9mm cap, which is physically incompatible with the wedge socket used by the 194.
The front side marker position on the Pontiac Sunbird uses the 194 bulb across all listed model years, spanning 1976-1980 and 1989-1994.
The rear side marker position uses the 194 bulb for model years 1976-1980 and 1989-1991, while the 1992-1994 model years use the 24 bulb instead.
Because the 194 and 24 bulbs use different base types, a wedge-socket housing and a BA9s-socket housing are not interchangeable, and the rear side marker sockets on 1992-1994 models are therefore not compatible with those on 1989-1991 models.
The 194 bulb draws 3.78 watts, while the 24 bulb draws 2 watts. This difference in wattage reflects a lower power draw for the rear side marker position on 1992-1994 models relative to earlier years.
Both bulb types operate on a 12-volt electrical system, consistent with standard automotive electrical architecture across all listed model years.