Chevrolet Kingswood front and rear side marker bulbs utilize 194 and 194NA bulb sizes, with front markers accommodating both specifications and rear markers using the 194 size. The replacement chart covers 1969 through 1972 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 194 bulb is the dominant type across the Chevrolet Kingswood side marker specifications, appearing in both front and rear positions for the 1969-1970 and 1972 model years, as well as the rear position for 1971.
The 194 is classified under the ANSI standard recognized in both the United States and Canada, and it is a miniature wedge-style bulb of the T10 form factor operating at 12 volts with a power draw of 3.78 watts.
The T10 wedge form factor uses a wedge-shaped base rather than a pin or bayonet mount, which means the bulb is held in place by tension within the socket rather than by a locking mechanism.
The 1971 Chevrolet Kingswood front side marker position calls for the 194NA rather than the standard 194, making it the sole position in these specifications to require that variant.
The 194NA shares the same ANSI classification, T10 wedge form factor, 12-volt rating, and 3.78-watt power draw as the 194, with the distinguishing characteristic being its natural amber-tinted glass envelope.
The amber glass of the 194NA produces a colored output from the bulb itself, whereas a standard 194 installed in the same socket would rely on an amber-colored lens housing to achieve the same visible effect.
Substituting a standard 194 for a 194NA in the 1971 front side marker position would result in a white or clear light output from the bulb, which may not meet the intended optical or regulatory requirement for that position.
Because the 194 and 194NA share identical electrical and physical specifications, the socket and wiring harness for the 1971 front side marker are compatible with both variants at the hardware level.