The Mercedes-Benz ML350 parking light utilizes bulb sizes 12961 and 1034NA according to the provided specifications for the lighting components. Data for the specific bulbs covers the range from 2003 to 2011.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Mercedes-Benz ML350 front parking light uses the 12961 bulb across the 2006-2015 model years, making it the dominant fitment in these specifications.
The 12961 is a Philips part number for a T10 miniature wedge bulb with a W2.1x9.5d base, rated at 12V and 5W. The T10 designation refers to the bulb's tubular form factor, and the wedge base design requires no locking mechanism, as the bulb is held in place by friction within the socket.
The 1034NA bulb is specified for the 2003-2005 ML350 front parking light. It carries an ANSI designation, meaning it conforms to a standardized North American specification rather than a manufacturer-specific part number.
The 1034NA uses a BAY15d bayonet base, which is a dual-contact, offset-pin mount. This base type is physically incompatible with the W2.1x9.5d wedge socket used by the 12961, meaning the two bulbs are not interchangeable.
The 1034NA is a dual-filament bulb rated at 12V and 21/5W, where the higher wattage filament and the lower wattage filament serve separate lighting functions. It is a natural amber glass variant of the 1157 bulb family.
For the 2006-2007 ML350, the 12961 front parking light fitment is conditionally noted as applying to vehicles with halogen capsule headlamps, indicating that headlamp type is a relevant factor in bulb selection for those model years.