Chevrolet Citation high beam and low beam headlight bulbs both utilize the H6054 size. The replacement chart covers vehicle production spanning 1980 to 1983.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Chevrolet Citation uses the H6054 bulb size for both high beam and low beam headlights across all listed model years, 1980-1983.
The H6054 is an ANSI-standardized sealed beam unit recognized in both the United States and Canada, meaning its physical and electrical specifications conform to a defined national standard rather than a proprietary manufacturer format.
The H6054 is a 5x7-inch rectangular sealed beam unit, a form factor in which the lens, reflector, and filament are fused into a single glass assembly.
Because the H6054 is a sealed beam unit, the entire assembly is replaced when the light fails, as the filament is not accessible or separately serviceable.
The H6054 operates at 12 volts, consistent with the standard electrical system voltage found in passenger vehicles of this era.
The same H6054 unit serves both the high beam and low beam functions on the Chevrolet Citation, indicating the vehicle relies on a dual-filament sealed beam design rather than separate housings for each beam type.