Ferrari 348 GTS headlight bulbs utilize 9005 size for high beam and 9006 size for low beam applications. The replacement chart covers 1993 to 1994 model 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 Ferrari 348 GTS uses the 9005 bulb for high beam headlights across the 1993-1994 model years.
Low beam headlights on the 348 GTS use the 9006 bulb for the same 1993-1994 model year range.
The 9005 is a single-filament halogen bulb operating at 12V and 65W, built to the ANSI standard applicable in the US and Canada.
The 9006 shares the same single-filament halogen construction and 12V operating voltage as the 9005 but draws less power at 55W.
The 9005 uses a P20d base, while the 9006 uses a P22d base. These two base types are physically distinct, meaning the bulbs are not interchangeable between the high and low beam positions.
The wattage difference between the 9005 (65W) and 9006 (55W) reflects their respective roles, as high beam bulbs typically produce a higher-intensity output than low beam bulbs.
Both bulb types conform to ANSI standards, which define consistent electrical and physical specifications for bulbs sold in the US and Canadian markets.