Pontiac Grand Am License Plate Bulb Size

Additional Notes

• The Pontiac Grand Am uses the 194 bulb size across all listed model years for the license plate position, spanning 1973-2005.
• The 194 bulb is classified as a T10 miniature wedge type, a designation that refers to its tubular glass envelope measuring 10 eighths of an inch in width.
• The wedge base design means the 194 bulb has no metal base or pins; instead, the glass envelope itself acts as the contact point, fitting directly into a wedge-style socket.
• The 194 operates at 12 volts and draws 3.78 watts, placing it in the low-wattage range typical of indicator and auxiliary lighting applications.
• The 194 carries ANSI standardization recognized in both the United States and Canada, meaning the specification reflects a consistent electrical and physical standard across North American markets.
• Because the 194 follows the ANSI T10 wedge standard, aftermarket and OEM replacements from different manufacturers are generally interchangeable as long as the voltage and wattage ratings are matched.
• LED replacements in the T10 wedge format are physically compatible with the same socket, though the electrical characteristics of LED units differ from the original 3.78-watt incandescent rating.
• The consistent use of a single bulb specification across all listed model years of the Pontiac Grand Am indicates that the license plate lamp socket design remained unchanged throughout the vehicle's production run as documented in these specifications.