The Hino FE17 high beam headlight uses an H4651 bulb size while low beam headlight applications require either H4652 or H4656 bulb sizes. The replacement chart covers vehicle production years spanning 1987 to 1991 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 Hino FE17 uses sealed beam headlight units across all listed model years (1987-1991), meaning the entire lens-reflector-filament assembly is replaced as one unit rather than swapping an internal bulb.
All three bulb types used in the Hino FE17, the H4651, H4652, and H4656, conform to ANSI standards recognized in both the United States and Canada, and all operate on a 12V electrical system.
Each sealed beam unit in the FE17 follows the 4x6-inch rectangular form factor, which is a standardized size shared across many North American vehicle applications of that era.
The H4651 is the designated high beam sealed beam unit for the Hino FE17 across the full 1987-1991 model year range without variation.
The low beam position shows a fitment change: the 1987 FE17 uses the H4656, while the 1988-1991 model years use the H4652 instead. These two units are not interchangeable despite sharing the same physical form factor, as they are designated for different beam functions and have distinct ANSI classifications.
The H4652 is described as a variant of the H4651, both being 4x6-inch rectangular sealed beam units rated at 12V, though they serve separate beam positions and are not substitutes for one another in the FE17 application.