Chevrolet Laguna front and rear side marker bulbs utilize a 194 bulb size across both positions. The replacement chart covers 1973 to 1976 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 Chevrolet Laguna uses the 194 bulb for both front and rear side marker positions across the 1973-1976 model years.
The 194 is a miniature wedge-type bulb, classified under the T10 form factor, which refers to its tubular shape measuring 10 eighths of an inch in width.
The 194 bulb 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 it conforms to a defined set of electrical and physical tolerances shared across manufacturers.
The wedge base design of the 194 means the bulb is held in its socket by the tension of the glass envelope itself rather than by a separate metal base, which is a common trait of T10 miniature bulbs.
Because the front and rear side marker positions on the Chevrolet Laguna share the same bulb specification, a single bulb type services all four side marker sockets on the vehicle.
The T10 wedge format is widely used across automotive lighting, and while physical fitment with other T10 bulbs may be possible, only the 194 rating reflects the electrical specification listed for this application.