Mitsubishi Fuso FH Side Marker Bulb Size

Mitsubishi Fuso FH front and rear side marker bulbs utilize a 89 bulb size. The replacement chart covers vehicle production spanning 1988 to 1998.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Front Side Marker

Years	Bulb Size
1988-1998	89

Years	Bulb Size
1988-1998	89

Description	Bulb Size
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 13W.	89

The Mitsubishi Fuso FH uses the ANSI 89 bulb for both its front and rear side marker positions across the 1988-1998 model years.
The 89 bulb operates on a 12-volt electrical system and draws 13 watts, placing it in the lower-wattage category of the BA15s bayonet base family.
The BA15s base designation indicates a single-contact bayonet fitting, which is mechanically distinct from dual-contact bayonet bases and is not interchangeable with them.
The 89 bulb is a single-filament type, meaning it serves one lighting function per socket rather than switching between two brightness levels.
The 89 is recognized as a lower-wattage variant of the 1156 bulb. While both share the BA15s base, the wattage difference means the two are not direct substitutes in applications where power draw is a factor.
The ANSI 89 designation confirms the bulb meets a standardized specification recognized in both the United States and Canada, indicating consistent physical and electrical characteristics across compliant products.
The front and rear side marker positions on the Mitsubishi Fuso FH share the same bulb size, so a single bulb type services all four side marker sockets on the vehicle.