Chevrolet Brookwood front side marker bulbs utilize 194 or 194NA bulb sizes, while rear side marker bulbs use 194 size specifications. The replacement chart covers 1969 through 1972 production years with corresponding bulb size data.
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 dominant type across both front and rear side marker positions on the Chevrolet Brookwood for the 1969-1972 model years, appearing in nearly every position across all listed years.
The 194 is classified as a miniature wedge bulb under the T10 form factor, operating at 12 volts and drawing 3.78 watts. It carries ANSI standardization recognized in both the United States and Canada.
The 194NA shares the same ANSI classification, voltage, wattage, and T10 wedge form factor as the standard 194, with the sole physical distinction being its natural amber glass envelope rather than clear glass.
The 1971 front side marker position on the Chevrolet Brookwood specifies the 194NA rather than the standard 194, making it the only position across all listed years and sub-parts to call for the amber-glass variant.
Because the 194 and 194NA are electrically and physically identical, the amber coloration of the 194NA is integral to the bulb itself rather than produced by a colored lens or housing, which is a relevant fitment consideration for the 1971 front position.
Substituting a clear 194 in place of the specified 194NA in the 1971 front side marker position would alter the emitted light color, as the amber tint is built into the glass of the 194NA and would not be replicated by the clear variant.
The rear side marker positions use the standard 194 uniformly across all four listed model years, with no amber-specific variant specified for any rear position.