Mitsubishi Fuso FG front and rear side marker bulbs utilize a 89 size bulb specification across both positions. The replacement chart covers vehicle production spanning 1990 to 1998.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Mitsubishi Fuso FG uses the 89 bulb for both its front and rear side marker positions across the 1990-1993 and 1998 model years.
The 89 is an ANSI-standardized bulb recognized in both the United States and Canada, operating at 12 volts and 13 watts.
The 89 bulb uses a BA15s bayonet base, which is a single-contact base type that seats and locks with a twist-and-push motion.
As a single-filament bulb, the 89 is designed for one lighting function only, which is consistent with its use in side marker applications.
The 89 is a lower-wattage variant of the 1156 bulb. While both share the BA15s bayonet base, the 1156 draws 26.9 watts, making the two bulbs electrically incompatible as direct replacements for each other despite their physical similarities.
Because the front and rear side marker positions on the Fuso FG share the same bulb size, a single bulb type services all four side marker sockets on the vehicle.