Volkswagen Fox high beam and low beam headlight bulbs utilize 9004 and H6054 sizes. The replacement chart covers vehicle production spanning 1987 to 1993.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Volkswagen Fox uses two distinct headlight technologies across its model years, with the H6054 sealed beam unit fitted to 1987-1991 models and the 9004 halogen bulb fitted to 1992-1993 models.
Both the high beam and low beam positions share the same bulb size for every model year of the Fox, meaning a single specification applies to the full headlight assembly on any given year.
The H6054 is a 5x7-inch rectangular sealed beam unit operating at 12V. Because the light source is fused permanently within the housing, the entire unit requires replacement rather than just an internal bulb.
The 9004 is a dual-filament halogen bulb with a P29t base, rated at 12V with a 65W output on high beam and 45W on low beam. Both filaments are housed within a single bulb, which is why one part number covers both beam functions on the 1992-1993 Fox.
The H6054 and 9004 are not interchangeable. The sealed beam format of the H6054 and the replaceable socket-mounted format of the 9004 represent fundamentally different headlight construction types, and the housings designed for one will not accept the other.
Both the H6054 and the 9004 are ANSI-standardized types recognized in the United States and Canada, meaning equivalent units from different manufacturers conform to the same physical and electrical specifications.