Maserati 430i License Plate Bulb Size

The Maserati 430i license plate light requires a bulb size of 89 for proper installation and function. Data for the specified lighting component covers the range from 1989 to 1990.

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

Bulb Size by Year Range

Years	Bulb Size
1989-1990	89

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 13W.	89

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Additional Notes

The bulb type 89 appears in both listed model years for the Maserati 430i license plate position, covering 1989-1990.
The 89 bulb follows the ANSI standard, meaning it meets the standardized specifications recognized across the United States and Canada.
It is a single-filament bulb, which means it serves one lighting function only, as opposed to dual-filament bulbs that handle two functions such as running light and brake light within a single unit.
The 89 bulb uses a BA15s bayonet base, a single-contact bayonet mount where the "s" denotes a single contact point at the base cap.
The 89 operates at 12 volts and 13 watts, placing it within the low-wattage range typical of auxiliary lighting positions such as license plate illumination.
The 89 is a lower wattage variant of the 1156 bulb, and while both share the BA15s bayonet base, the wattage difference means the two are not directly interchangeable without accounting for the electrical load difference.