Toyota Van high beam headlight bulbs use H4651 size while low beam headlight bulbs use H4652 or H4656 size. The replacement chart covers vehicle production years spanning 1984 to 1989 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 Toyota Van uses H4651, H4652, and H4656 bulb types across its headlight system, all of which conform to ANSI standards recognized in the United States and Canada. Each is a 4x6-inch rectangular sealed beam unit operating at 12V.
Sealed beam units differ from conventional bulbs in that the lens, reflector, and filament are fused into a single glass assembly. When the filament fails, the entire unit requires replacement rather than just an internal bulb.
The H4651 serves as the high beam headlight across all model years from 1984-1989, making it the most consistently applied bulb type in these specifications.
The low beam headlight position shows a split between two bulb types. The H4656 was fitted for 1984-1985, while the H4652 replaced it from 1986-1989.
Although the H4651 and H4652 share the same 4x6-inch rectangular sealed beam format and 12V rating, they are distinct ANSI types assigned to different beam functions and are not interchangeable between the high and low beam positions.
The H4656 and H4652 both occupy the low beam position but across different year ranges, and despite sharing the same physical format, they carry separate ANSI designations, which indicates differing filament or photometric characteristics.