Ferrari 348 TB Headlight Bulb Size

The Ferrari 348 TB high beam headlight uses a 9005 bulb size while the low beam headlight requires a 9006 bulb size. The replacement chart covers 1990 to 1992 model production years with corresponding bulb specifications.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

High Beam Headlight

Years	US Type	EU Type	Shop
1990-1992	9005	HB3	Check Price

Low Beam Headlight

Years	US Type	EU Type	Shop
1990-1992	9006	HB4	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Single-filament halogen bulb with P20d base. 12V, 65W.	9005	Check Price
ANSI standard (US & Canada). Single-filament halogen bulb with P22d base. 12V, 55W.	9006	Check Price

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Additional Notes

The Ferrari 348 TB uses the 9005 bulb for high beam headlights across the 1990-1992 model years.
The 9005 is a single-filament halogen bulb operating at 12V and 65W, built to ANSI standards for the US and Canadian markets, and fitted with a P20d base.
Low beam headlights on the 348 TB use the 9006 bulb across the same 1990-1992 model years.
The 9006 is also a single-filament halogen bulb rated at 12V but draws 55W rather than 65W, and it carries a P22d base rather than the P20d base found on the 9005.
The P20d and P22d base types are physically distinct, meaning the 9005 and 9006 bulbs are not interchangeable despite sharing the same voltage rating and a broadly similar form factor.
The wattage difference between the two bulbs reflects their intended functions, with the higher-output 9005 serving the high beam position and the lower-output 9006 serving the low beam position.
Both bulb types conform to ANSI standardization, which governs electrical and photometric performance requirements applicable in the United States and Canada.