BMW Z8 License Plate Bulb Size

The BMW Z8 license plate requires a bulb with the unique size 12961 for proper installation and function. Data for the specified component covers the range from 2000 to 2003.

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 Type	Shop
2000-2003	12961	Check Price

Bulb Specifications

Description	Type	Shop
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12961	Check Price

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Additional Notes

The BMW Z8 uses the 12961 bulb for the license plate position across its 2000-2003 model years.
The 12961 is a Philips part number designating a miniature wedge bulb in the T10 form factor, operating at 12 volts and 5 watts.
The T10 designation refers to a tubular bulb body approximately 10mm wide, commonly found in low-current auxiliary lighting positions such as license plate illumination.
The 12961 uses a W2.1x9.5d base, which is the standard wedge-type base for T10 bulbs. The base is held in place by friction rather than a bayonet or screw mechanism.
At 5 watts, the 12961 draws minimal current, consistent with its role in a non-safety-critical lighting position.
The W2.1x9.5d base specification is a precise fitment detail. Substituting a bulb with a different base type risks improper seating or electrical contact failure even if the outer body appears similar in size.