Ford Granada Headlight Bulb Size

Additional Notes

• The Ford Granada headlight specifications span the 1975-1982 model years, covering three distinct sealed beam unit types across both high beam and low beam positions: H6024, H6054, H4651, and H4652.
• All four bulb types listed are ANSI-standard sealed beam units rated at 12V. In a sealed beam design, the reflector, lens, and filament are fused into a single glass unit, meaning the entire assembly is replaced rather than an internal bulb.
• The H6024 is a 7-inch round sealed beam unit used in both the high beam and low beam positions for the 1975-1977 Ford Granada. Because both positions share the same part number, a single unit type serves the full headlight assembly for those years.
• The H6054 is a 5x7-inch rectangular sealed beam unit fitted to both the high beam and low beam positions for the 1978-1980 Granada. As with the H6024, the shared part number across both positions indicates a single unit type per side.
• For the 1981-1982 Granada, the high beam and low beam positions use different part numbers: H4651 for high beam and H4652 for low beam. Both are 4x6-inch rectangular sealed beam units, with the H4652 described as a variant of the H4651.
• The distinction between H4651 and H4652 in the 1981-1982 years reflects a position-specific filament configuration. Despite sharing the same physical 4x6-inch rectangular housing, the two units are not interchangeable between high beam and low beam sockets.
• The H6054 and H6024 units, while both rectangular and round sealed beams respectively, differ in physical size and are not interchangeable with each other or with the 4x6-inch H4651 and H4652 units used in later years.
• All bulb types across the full 1975-1982 range conform to ANSI standards applicable in both the United States and Canada, indicating consistent regulatory compliance across the production run of the Granada in North American markets.