The Mitsubishi Fuso FM-SR headlight bulb specifications include H6054 and H5001 sizes for high beam applications, along with H6054 and H5006 sizes for low beam functions. A replacement chart covering 1996-1997 model years documents the bulb size data for headlight assemblies on this commercial vehicle.
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 for model years 1996-1997 uses one of two distinct headlamp configurations: a two-headlamp system or a four-headlamp system, and the bulb sizes differ between these configurations for both high and low beam functions.
The H6054 is a 5x7-inch rectangular sealed beam unit operating at 12V and conforming to ANSI standards recognized in the US and Canada. It serves as both the high beam and low beam in the two-headlamp configuration, meaning a single unit type handles both functions depending on its position or wiring.
The H5001 is a 4-inch square sealed beam unit, also 12V and ANSI-rated, and it fills the high beam role in the four-headlamp configuration across both 1996 and 1997.
The H5006 is a 5.75-inch round sealed beam unit at 12V, ANSI-rated, and it serves the low beam function exclusively in the four-headlamp configuration.
All three bulb types, H6054, H5001, and H5006, are sealed beam units, meaning the lens, reflector, and filament are fused into a single assembly. When a filament fails, the entire unit requires replacement rather than just an internal bulb.
The H6054, H5001, and H5006 are not interchangeable with one another. Each has a distinct physical form factor, a rectangular, square, or round housing respectively, which prevents cross-fitment between configurations.
Vehicles equipped with the two-headlamp system use only the H6054 across both high and low beam positions, while vehicles with the four-headlamp system require two different sealed beam types, H5001 for high beam and H5006 for low beam.
Confirming which headlamp configuration is present on a specific FM-SR unit is a necessary step before sourcing replacement sealed beams, as the two systems draw from entirely different sets of part numbers.