The Peugeot 304 high beam headlight uses an H5001 bulb size while the low beam headlight requires an H5006 bulb size. The replacement chart covers 1971 to 1972 production years with corresponding bulb specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Peugeot 304 uses two distinct sealed beam types across its headlight system: the H5001 for high beam and the H5006 for low beam, covering the 1971-1972 model years.
Both the H5001 and H5006 are ANSI-standardized sealed beam units, meaning they conform to North American specifications applicable in the US and Canada.
The H5001 is a 4-inch square sealed beam unit operating at 12V. Because it is a sealed beam, the lens, reflector, and filament form a single assembly, and the entire unit is replaced rather than an internal bulb.
The H5006 is a 5.75-inch round sealed beam unit, also rated at 12V and similarly constructed as a non-serviceable assembly requiring full unit replacement.
The square format of the H5001 and the round format of the H5006 make the two types physically incompatible with each other, so the high beam and low beam positions do not share interchangeable units.
The ANSI classification of both sealed beam types indicates they follow standardized sizing and electrical ratings, which historically allowed cross-brand fitment within the same sealed beam category across different vehicle makes.