Mitsubishi Fuso FM-SR front and rear turn signal bulbs use 1156 size bulbs for both locations. The replacement chart covers 1996 to 1997 vehicle 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 Mitsubishi Fuso FM-SR uses the 1156 bulb for both its front and rear turn signals across the 1996-1997 model years.
The 1156 is an ANSI-standardized bulb type recognized across the United States and Canada, meaning it conforms to a defined set of electrical and physical characteristics shared by all compliant units bearing that designation.
The 1156 operates on a 12-volt electrical system and draws 21 watts, which is consistent with standard automotive turn signal power requirements.
The 1156 is a single-filament bulb, meaning it serves one lighting function per socket, as opposed to dual-filament types that can handle two functions such as braking and signaling from a single unit.
The BA15s bayonet base on the 1156 features a single locating pin on the side of the base, which distinguishes it from the BA15d type that carries two offset pins. Substituting a BA15d bulb in a BA15s socket is not possible without modification.
Because the FM-SR uses the same 1156 bulb in all four turn signal positions for both listed model years, a single bulb type covers the full front and rear turn signal fitment for the vehicle.