Toyota Crown high beam headlight bulbs measure H5001 in size, while low beam headlight bulbs measure H5006, with each bulb size corresponding to specific lighting functions. The replacement chart covers vehicle production years spanning 1969 to 1972.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Toyota Crown (1969-1972) uses two distinct sealed beam units across its headlight system: the H5001 for high beam and the H5006 for low beam.
The H5001 is a 4-inch square sealed beam unit operating at 12V. It conforms to ANSI standards applicable in the United States and Canada.
The H5006 is a 5.75-inch round sealed beam unit, also rated at 12V and built to the same ANSI standard as the H5001.
Both the H5001 and H5006 are sealed beam units, meaning the lens, reflector, and filament are fused into a single assembly. When the filament fails, the entire unit requires replacement rather than an internal bulb swap.
The H5001 and H5006 are not interchangeable with each other. Their differing form factors, one square and one round, along with their separate beam functions, make each unit specific to its designated position.
The ANSI designation on both units indicates compliance with a standardized specification, which means equivalent sealed beam units from different manufacturers sharing the same ANSI code are generally cross-compatible as replacements.