The Chevrolet Beretta front side marker bulb size is 194 or 194NA, while the rear side marker bulb size is 194. The replacement chart covers vehicle production years spanning 1987 to 1994.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 194 and 194NA bulbs are the only two bulb types specified across all front and rear side marker positions on the Chevrolet Beretta for the 1987-1994 model years.
Both the 194 and 194NA are ANSI-standardized miniature wedge bulbs sharing the T10 form factor, a 12-volt operating voltage, and a 3.78-watt power rating.
The sole difference between the two types is that the 194NA features natural amber-tinted glass, while the standard 194 uses clear glass.
The rear side marker position uses the standard 194 bulb across all model years from 1987-1994 without variation.
The front side marker position on the Chevrolet Beretta uses the 194NA for the 1991-1993 model years, while the 1987-1990 and 1994 model years use the standard 194.
Because the 194 and 194NA share the same T10 wedge base and electrical ratings, they are physically interchangeable, though substituting a clear 194 for a 194NA alters the amber color output that the natural glass of the 194NA is intended to produce.
Both bulb types carry ANSI standardization recognized in both the United States and Canada, meaning the specifications apply to vehicles sold in either market.