The Oldsmobile 88 side marker requires a 194 bulb size for the lighting component located on the exterior of the vehicle. Data for the specified bulb covers the range from 1995 to 1999.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Oldsmobile 88 uses the 194 bulb for both front and rear side marker positions across the 1992-1999 model years.
The 194 is a miniature wedge-type bulb, classified under the T10 form factor, which refers to a tubular bulb roughly 10 millimeters wide at its widest point.
The wedge base design means the 194 bulb is held in place by the socket itself rather than by a separate metal base with pins, which is a common trait of low-wattage automotive marker bulbs.
The 194 operates at 12 volts and draws 3.78 watts, placing it in the low-power range typical of side marker and courtesy lighting applications.
The 194 conforms to ANSI standards recognized in both the United States and Canada, indicating a standardized specification for physical size, voltage, and wattage.
Because the same bulb number applies to both the front and rear side marker positions on the Oldsmobile 88, a single bulb type serves both locations without substitution.
The T10 wedge format is shared by several bulb numbers beyond the 194, so substitution with other T10-based bulbs would require verifying that voltage and wattage ratings match the 194 specification before use.