The Hino FF19 front and rear turn signal bulbs utilize either 1156 or 1157 bulb sizes depending on configuration. The replacement chart covers 1987 through 1991 production years 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 Hino FF19 uses two distinct bulb types across its turn signal positions: the 1156 and the 1157, both conforming to ANSI standards recognized in the US and Canada.
The 1156 is a single-filament bulb rated at 12V and 21W, fitted with a BA15s bayonet base.
The 1157 is a dual-filament bulb rated at 12V with filaments at 21W and 5W, fitted with a BAY15d bayonet base.
The BA15s and BAY15d bases are physically incompatible with each other due to differing pin configurations, meaning the 1156 and 1157 are not interchangeable.
The Hino FF19 front turn signal used the 1157 bulb for the 1987-1988 model years.
Front turn signal fitment shifted to the 1156 bulb for the 1989-1991 model years.
The rear turn signal follows the same pattern as the front, with the 1157 specified for 1987-1988 and the 1156 specified for 1989-1991.
The front and rear turn signal positions share identical bulb specifications across all listed model years, indicating a symmetrical lighting design for those circuits.
The dual-filament 1157 used in 1987-1988 models carries a secondary 5W filament, which is typically associated with a combined turn and parking light function in a single housing.
The single-filament 1156 used in 1989-1991 models serves only one circuit function per bulb, which is consistent with a dedicated turn signal application.