The Freightliner FL70 uses H6054 bulb size for both high beam and low beam headlight applications. The replacement chart covers vehicle production spanning 1991 to 2005.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Freightliner FL70 uses the H6054 bulb for both high beam and low beam headlights across all listed model years, spanning 1991-2005.
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.
Sealed beam units such as the H6054 are standardized to a rectangular format, which allows for consistent fitment across a wide range of commercial and fleet vehicles over many production years.
The H6054 is a dual-filament sealed beam, which accounts for its use in both the high beam and low beam positions on the FL70 without requiring two different part numbers.
Because the same H6054 unit serves both beam functions, the FL70 headlight assembly relies on the internal filament switching of the sealed beam rather than separate physical bulbs for each mode.
The H6054 operates on a standard 12-volt electrical system and is rated at 65 watts on high beam and 45 watts on low beam, figures typical of this sealed beam format.
The uninterrupted use of the H6054 across the entire 1991-2005 production span of the FL70 indicates a stable headlight housing design with no mid-cycle changes to the lamp specification.
Substituting a non-sealed-beam bulb type in place of the H6054 would require a housing adapter or retrofit kit, as the mounting and connector configuration differs from modern composite headlight systems.
The H6054 shares its rectangular sealed beam format with the 6054 and 6014 designations, though those variants differ in wattage output and are not direct equivalents for all applications.
Fitment of the H6054 is governed by the physical mounting tab pattern and the three-prong connector standard associated with this sealed beam category, both of which must match the FL70 housing for proper installation.