The Hino FE2620 uses an H4651 bulb size for high beam headlight and an H4656 bulb size for low beam headlight applications. The replacement chart covers vehicle production years spanning 1998 to 2004 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 FE2620 uses the H4651 bulb type for high beam headlights across the 1998-2004 model years, with no variation in specification across that period.
The H4651 is an ANSI-standardized 4x6-inch rectangular sealed beam unit rated at 12V, recognized under both US and Canadian standards.
Low beam headlights on the Hino FE2620 use the H4656 across the same 1998-2004 span, also an ANSI-standardized 4x6-inch rectangular sealed beam unit operating at 12V.
Although the H4651 and H4656 share the same physical form factor and voltage rating, they are distinct part numbers designated for separate beam functions and are not interchangeable between high and low beam positions.
Both the H4651 and H4656 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 sealed beam construction of both types means fitment is governed by the physical housing of the unit rather than a separate bulb socket, which affects replacement compatibility with aftermarket housings designed for discrete bulb formats.