Hyundai Excel high and low beam headlight bulbs utilize a 9004 or H6054 bulb size for optimal illumination. The replacement chart covers vehicle production spanning 1986 to 1994 with corresponding bulb specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Hyundai Excel uses two distinct headlight technologies across its production run, with the 1986 model year using the H6054 sealed beam unit and the 1987-1994 model years using the 9004 halogen bulb for both high and low beam functions.
The 9004 is a dual-filament halogen bulb, meaning a single bulb serves both the high beam and low beam functions within one housing. It operates on a P29t base at 12 volts, with a rated output of 65 watts on high beam and 45 watts on low beam.
The H6054 is a 5x7-inch rectangular sealed beam unit conforming to ANSI standards recognized in the United States and Canada. Unlike a conventional replaceable bulb, the entire H6054 unit constitutes the light assembly itself, and the whole unit is replaced when the light fails.
The 9004 also conforms to ANSI standards applicable in the United States and Canada, placing both bulb types used across the Excel's production run within the same regional standardization framework.
Because the H6054 and 9004 represent fundamentally different headlight construction types, the 1986 Excel (H6054) and the 1987-1994 Excel (9004) are not interchangeable with one another without modification to the headlight housing.
The dual-filament design of the 9004 means that a single socket position in the headlight housing of the 1987-1994 Excel handles both beam modes, distinguishing it from single-filament systems that require separate bulbs for each function.