Peugeot 505 License Plate Bulb Size

The Peugeot 505 license plate light requires a 12821 bulb size for proper illumination of the rear registration area. Data for the specified component covers the period from 1980 through 1991.

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
1980-1991	12821

Bulb Specifications

Description	Bulb Size
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12821

Other Locations

Additional Notes

The Peugeot 505 uses the 12821 bulb for the license plate light across all listed model years, spanning 1980-1991.
The 12821 is a Philips part number designating a miniature wedge bulb in the T10 form factor.
T10 refers to the bulb's tubular shape, with the number indicating a width of 10 millimeters.
The 12821 uses a W2.1x9.5d wedge base, which is a capless design that is held in place by the glass envelope itself rather than a metal cap.
The bulb operates at 12 volts and 5 watts, consistent with standard low-power automotive auxiliary lighting.
The W2.1x9.5d base type is a metric designation where 2.1 refers to the wire contact width and 9.5 refers to the base length in millimeters.
Because the same bulb specification applies to every listed model year of the Peugeot 505, no year-specific fitment variations exist within this range.