The Freightliner FL106 high beam and low beam headlight bulbs both utilize the H6054 size. The replacement chart covers vehicle production spanning 1994 to 2003.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Freightliner FL106 uses the H6054 bulb size for both high beam and low beam headlights across all listed model years, spanning 1994-2003.
The H6054 is a sealed beam unit, meaning the lens, reflector, and filament are fused into a single non-serviceable assembly rather than a separate replaceable bulb within a housing.
The H6054 sealed beam operates on a rectangular form factor, which is a standardized format governed by SAE and DOT specifications, allowing cross-brand compatibility within that standard.
Because the H6054 serves both the high beam and low beam functions on the FL106, it contains dual filaments within a single sealed unit, one dedicated to each beam mode.
The consistent use of the H6054 across both beam positions means a single bulb type covers the full headlight system, with no separate part numbers required for high versus low beam replacement.
The H6054 is a halogen sealed beam, producing light through a tungsten filament enclosed in a halogen gas environment, which extends filament life and maintains higher luminous output compared to standard incandescent sealed beams.
The standardized nature of the H6054 format means aftermarket and OEM-equivalent units from multiple manufacturers are generally interchangeable, provided they conform to the same sealed beam specification.
The uniform H6054 fitment across the entire 1994-2003 production span of the FL106 indicates no mid-cycle headlight housing revision that would have introduced a different bulb format during those years.