The Ferrari 328 GTS high beam and low beam headlight bulbs both utilize the H6024 size. The replacement chart covers 1986 to 1989 production specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The H6024 is the sole bulb type specified across all lighting positions on the Ferrari 328 GTS, covering both high beam and low beam headlights for the 1986-1989 model years.
The H6024 is an ANSI-standardized sealed beam unit, meaning the lens, reflector, and filament are fused into a single assembly. When the filament fails, the entire unit requires replacement rather than an internal bulb swap.
The H6024 unit conforms to the 7-inch round sealed beam format, a standardized size regulated under ANSI specifications for use in the United States and Canada.
The Ferrari 328 GTS uses an identical H6024 unit for both high beam and low beam functions, indicating that a single sealed beam assembly serves dual lighting roles rather than separate dedicated units for each function.
The H6024 operates at 12 volts, consistent with the standard automotive electrical system voltage used across the 1986-1989 production run of the 328 GTS.
Because the H6024 is an ANSI-standardized format, fitment is governed by the physical sealed beam housing size rather than a proprietary specification, allowing cross-brand compatibility within the same ANSI category.