The International 9900i high beam and low beam headlight bulbs both utilize the H6054 size. The replacement chart covers vehicle production spanning 2011 to 2017.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The H6054 is a sealed beam unit, meaning the lens, reflector, and filament are fused into a single assembly rather than separated into a housing and replaceable bulb.
The International 9900i uses the H6054 bulb for both high beam and low beam headlight positions across all listed model years.
The H6054 is a rectangular sealed beam, a format historically common in commercial and heavy-duty vehicle applications.
Because the same H6054 unit serves both the high beam and low beam functions on the 9900i, each headlight position requires an identical replacement part.
The H6054 operates on a standard 12-volt electrical system and is rated at 65 watts for high beam and 45 watts for low beam output within the sealed unit.
The H6054 format follows SAE and DOT standards for sealed beam headlamps, which governs its light output, beam pattern, and physical interface with the headlight bucket.
The 9900i used the H6054 specification consistently across the 2011 and 2013-2017 model years for both headlight functions.
Sealed beam units such as the H6054 are not interchangeable with composite headlight assemblies, as the mounting, wiring connector, and optical design differ fundamentally between the two formats.