The Hino 238 headlight bulb uses 9003 and H6054 sizes for both high and low beam applications. Replacement chart data spans 2005 to 2010 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 9003 bulb is a dual-filament halogen type rated at 12V with a 60W high beam filament and a 55W low beam filament, fitted with a P43t base. Its dual-filament design allows a single bulb to serve both the high beam and low beam functions within one housing.
The Hino 238 uses the 9003 bulb for both high beam and low beam headlights across the 2006-2010 model years, meaning a single bulb type covers both lighting functions during that period.
The H6054 is a 5x7-inch rectangular sealed beam unit operating at 12V. Unlike the 9003, it is not a replaceable bulb; the entire sealed unit is substituted when the light fails or is damaged.
The 2005 Hino 238 uses the H6054 sealed beam unit for both high beam and low beam headlights, which represents a fundamentally different construction from the replaceable halogen bulb used in later model years.
Because the H6054 is a sealed beam and the 9003 is a separate replaceable bulb with a distinct base type, the two are not interchangeable. Substituting one for the other would require a housing change, not merely a bulb swap.
Both the 9003 and H6054 conform to ANSI standards applicable in the United States and Canada, indicating that both types meet the same regional regulatory framework despite their differing construction.