Hino FA1415 headlight bulbs utilize H4651 size for high beam and H4656 size for low beam applications. Replacement chart data covers 1993 to 1995 vehicle production specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Hino FA1415 uses H4651 bulbs for high beam headlights across the 1993-1995 model years.
Low beam headlights on the same vehicle use the H4656 across the same 1993-1995 span.
Both the H4651 and H4656 are ANSI-standardized sealed beam units recognized in the United States and Canada, operating at 12 volts.
Each unit follows the 4x6-inch rectangular sealed beam format, a fixed-size housing in which the lens, reflector, and filament are fused into a single glass assembly.
Because both types are sealed beam units, neither contains a replaceable bulb. When a filament fails, the entire sealed beam assembly requires replacement rather than an internal component.
The H4651 and H4656 share the same physical 4x6-inch rectangular form factor, yet they are designated for separate beam functions and are not interchangeable with each other.