The Mercedes-Benz C32 AMG uses a 12961 bulb size for front side marker applications and a 12821 bulb size for rear side marker positions. The replacement chart covers 2002 through 2004 model years with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Mercedes-Benz C32 AMG uses the 12961 bulb for the front side marker position across the 2002-2004 model years.
The rear side marker position across the same 2002-2004 model years calls for the 12821 bulb.
Both the 12961 and 12821 are Philips part numbers assigned to miniature wedge bulbs of the T10 type.
The T10 designation refers to a tubular bulb with a 10mm body width, commonly used in low-intensity automotive lighting positions such as side markers.
Both bulbs share the W2.1x9.5d base type, which is the standard wedge base used across a wide range of miniature automotive bulbs.
Both bulbs operate at 12 volts and consume 5 watts, placing them in the low-wattage category typical of marker and courtesy lighting applications.
Despite carrying different Philips part numbers, the 12961 and 12821 are electrically and physically identical, both being T10 wedge bulbs rated at 12V and 5W with a W2.1x9.5d base.
The shared base type and electrical ratings between the front and rear bulbs indicate physical interchangeability at the socket level, though the distinct part numbers reflect separate catalog entries by the manufacturer.