The Freightliner FL60 uses H6054 bulb size for both high beam and low beam headlight applications. The replacement chart covers vehicle production spanning 1991 to 2004.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Freightliner FL60 uses the H6054 bulb type for both high beam and low beam headlight positions across all listed model years from 1991-2004.
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 bulb housed within a projector or reflector housing.
Sealed beam units such as the H6054 are a halogen type, producing light through a tungsten filament enclosed in a halogen gas-filled glass envelope, which extends filament life and maintains lumen output over time.
The H6054 is a rectangular sealed beam format, a form factor widely standardized in North American commercial vehicle applications during the production span of the FL60.
Because the same H6054 part number covers both the high beam and low beam positions, the FL60 headlight system relies on a dual-filament sealed beam design, where a single unit contains separate filaments for each beam function.
The consistent use of one bulb size across both beam positions means a single replacement part services either headlight function, with no separate SKU required for high beam versus low beam.
H6054 sealed beams are subject to SAE and DOT standards governing light output and beam pattern, which govern their use in road-legal commercial vehicle applications in the United States.
The H6054 designation is shared with a broad range of commercial and fleet vehicles, which reflects the standardized nature of sealed beam sizing and makes cross-vehicle sourcing of replacement units straightforward within that parts ecosystem.