The Hino FE19 high beam headlight uses an H4651 bulb size while low beam headlights require either H4652 or H4656 bulb sizes. The replacement chart covers vehicle production years spanning 1987 to 1992 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 H4651, H4652, and H4656 bulb types are all ANSI-standardized sealed beam units used across North America (US and Canada). Each operates at 12V and follows the 4x6-inch rectangular sealed beam format, meaning the entire lens-and-filament assembly is replaced as a single unit rather than swapping an internal bulb.
The Hino FE19 uses the H4651 for the high beam headlight across all model years covered in the specifications, spanning 1987-1992 without variation.
The low beam headlight position shows two different sealed beam types across the same 1987-1992 span. The H4652 is fitted for 1989 and 1992, while the H4656 is fitted for 1987-1988 and 1990-1991.
Although the H4651 and H4652 are described as variants of the same 4x6-inch rectangular sealed beam family, they are not interchangeable in the FE19. The H4651 is designated exclusively for the high beam position, and the H4652 is designated for the low beam position in specific years.
The H4656 shares the same physical format and voltage rating as the H4651 and H4652 but is a distinct ANSI type. Its use is limited to the low beam position on the FE19 and does not appear in the high beam specifications.
Because all three sealed beam types share the 4x6-inch rectangular form factor and 12V rating, physical fitment alone is not a reliable indicator of correct specification. The ANSI type designation determines the correct beam pattern and filament configuration for each headlight position.