Plymouth Colt front and rear side marker bulbs utilize a 194 size bulb for optimal illumination. The replacement chart covers 1983 to 1986 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 194 bulb is the sole bulb type specified for side marker lighting on the Plymouth Colt across the 1983-1986 model years, covering both front and rear positions.
The 194 bulb follows the ANSI standard recognized in the United States and Canada, placing it within a regulated specification framework for miniature automotive lighting.
It is a T10 miniature wedge type, meaning it uses a wedge-shaped base rather than a pin or bayonet fitting, which requires a compatible wedge socket for proper installation.
The bulb operates at 12 volts, consistent with the standard electrical system voltage found in passenger vehicles of that era.
At 3.78 watts, the 194 draws relatively low power, which is typical for side marker applications where continuous illumination is required without significant electrical load.
The front and rear side marker positions on the Plymouth Colt share the same 194 bulb specification across all four model years listed, indicating full positional interchangeability within the vehicle.
Because the 194 is an ANSI-standardized bulb, it is produced by multiple manufacturers to the same electrical and physical specification, meaning units from different sources are generally interchangeable provided they conform to the T10 wedge format and 12V/3.78W rating.