The Ford C8000 headlight bulb utilizes H6054 and H6024 sizes for both high and low beam applications. The replacement chart covers vehicle production spanning 1980 to 1990 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 Ford C8000 headlight bulb specifications cover model years 1980-1990, with both high beam and low beam positions sharing identical bulb size requirements across all listed years.
The H6024 is a 7-inch round sealed beam unit operating at 12V and conforming to ANSI standards applicable in the US and Canada. It serves as the sole headlight type across all positions for the 1980-1986 model years.
The H6054 is a 5x7-inch rectangular sealed beam unit, also rated at 12V and built to the same ANSI standard. It appears in the specifications beginning with the 1987 model year, exclusively on configurations equipped with two rectangular headlamps.
Both the H6024 and H6054 are sealed beam units, meaning the lens, reflector, and filament are fused into a single assembly. Neither contains a replaceable bulb; the entire unit requires replacement when the filament fails.
For the Ford C8000 in model years 1987-1990, the correct bulb size is determined by headlamp housing shape. Vehicles fitted with two round headlamps use the H6024, while those fitted with two rectangular headlamps use the H6054.
Substituting an H6024 for an H6054, or vice versa, would be physically incompatible, as the round and rectangular housings are not interchangeable formats despite both being sealed beam units on the same 12V system.