Renault R12 headlight bulbs utilize H5001 and H6024 sizes for high beam applications, while low beam configurations employ H5006 and H6024 bulb sizes. The replacement chart covers 1971 through 1977 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 Renault R12 uses three distinct sealed beam bulb types across its headlight system: H5001, H5006, and H6024. All three conform to ANSI standards applicable to the US and Canadian markets and operate on a 12V electrical system.
Sealed beam units integrate the filament, reflector, and lens into a single fused assembly. When a sealed beam fails, the entire unit requires replacement rather than just an internal bulb.
The H5001 is a 4-inch square sealed beam unit used for the high beam headlight position on the Renault R12 across the 1972-1977 model years.
The H5006 is a 5.75-inch round sealed beam unit assigned to the low beam headlight position for the same 1972-1977 range. Its round form factor differs from the square H5001, meaning the two units are not interchangeable despite sharing the same model year coverage.
The 1971 Renault R12 uses the H6024 for both the high beam and low beam headlight positions. The H6024 is a 7-inch round sealed beam unit, making it physically larger than either the H5001 or H5006.
Because the 1971 model year uses a single bulb type for both beam positions while the 1972-1977 model years use two separate types, substituting parts between these year groups would result in a fitment mismatch.
The square profile of the H5001 and the round profiles of the H5006 and H6024 reflect different housing geometries, which means none of the three bulb types are cross-compatible with one another.