The Chevrolet Corsica front and rear side marker bulbs both utilize a 194 size bulb for proper illumination. The replacement chart covers 1987 to 1996 model 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 Chevrolet Corsica uses the 194 bulb for both front and rear side marker positions across its entire production run from 1987-1996.
The 194 is classified as a T10 miniature wedge bulb, a form factor defined by a wedge-shaped base that connects directly into a socket without a separate metal cap or pins.
The T10 designation refers to the bulb's tubular glass envelope, with the number indicating a width of 10 eighths of an inch.
The 194 operates at 12 volts with a power draw of 3.78 watts, placing it in the low-wattage range typical of marker and courtesy lighting applications.
The 194 carries ANSI standardization recognized in both the United States and Canada, meaning the specification conforms to a defined performance and physical standard rather than being a proprietary part number.
Because the front and rear side marker positions share the same 194 bulb, a single bulb type serves all four side marker sockets on the Corsica.
The wedge base of the T10 format is not compatible with bayonet or screw-base sockets, so socket type must match before any substitution is made.
The 194 belongs to a family of miniature wedge bulbs that includes closely related types such as the 168 and 192, which differ in wattage and are not direct electrical equivalents despite sharing the same physical base.