The Mercedes-Benz S430 parking light requires a 12961 bulb size for the specific lighting component located on the exterior of the vehicle. Provided information covers the production range from 2000 through 2006 for the specified automotive lighting application.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Mercedes-Benz S430 uses the 12961 bulb for the front parking light across the 2000-2006 model years.
The 12961 is a Philips part number designating a miniature wedge bulb in the T10 form factor.
T10 refers to a tubular bulb with a nominal width of 10 thirty-seconds of an inch, a common sizing convention in miniature automotive lighting.
The 12961 bulb uses a W2.1x9.5d base, which is a wedge-type base where the electrical contacts are formed by the glass envelope itself rather than a separate metal cap.
The W2.1x9.5d designation indicates a wedge base 2.1mm wide at the contact point with a 9.5mm insertion depth, defining the physical fit within the socket.
The bulb operates at 12 volts and 5 watts, consistent with low-power indicator and parking light applications in passenger vehicles.
The uniform use of the 12961 across all listed model years means a single bulb specification covers the entire front parking light fitment for the S430 from 2000 through 2006.
Because the 12961 is a Philips-designated part number, equivalent bulbs from other manufacturers must match the T10 form factor, W2.1x9.5d base, 12V rating, and 5W output to be considered interchangeable.