The Chevrolet Celebrity front and rear side marker bulbs both utilize a 194 size bulb for proper illumination. The replacement chart covers 1982 through 1990 vehicle production years with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 194 bulb is the sole bulb type specified for the Chevrolet Celebrity across all listed side marker positions, covering model years 1982-1990 with the exception of 1989.
The 194 bulb conforms to ANSI standards recognized in both the United States and Canada, placing it within a regulated specification framework for electrical and photometric performance.
It belongs to the T10 miniature wedge form factor, a designation that refers to a tubular bulb body approximately 10 millimeters wide with a wedge-shaped base that seats directly into a socket without a separate metal cap or bayonet pin.
The 194 operates at 12 volts, which is consistent with the standard electrical system voltage found in conventional passenger vehicles of this era.
Its rated wattage of 3.78W places it in the low-power range, reflecting the relatively modest illumination demands of side marker applications compared to headlamps or brake lights.
The front and rear side marker positions on the Chevrolet Celebrity share the identical 194 bulb specification across all listed years, meaning a single bulb type serves both locations on the vehicle.
Because the 194 uses a wedge base, fitment depends on socket compatibility with that base style. Substituting a bulb with a bayonet or indexed base would not be physically interchangeable, even if wattage and voltage ratings were otherwise similar.
The T10 wedge format is a widely produced industry-standard size, and the 194 designation specifically identifies a defined wattage and voltage rating within that physical format rather than the physical form alone.