Mazda 6 License Plate Bulb Size

Additional Notes

• The Mazda 6 license plate position uses two distinct bulb types across its model years: the 12961 and the 194, both of which share the T10 miniature wedge form factor.
• The T10 wedge form factor is a standardized bulb shape widely used in low-intensity automotive lighting positions, including license plate, courtesy, and side marker applications.
• The 12961 is a Philips part number designating a T10 miniature wedge bulb with a W2.1x9.5d base, rated at 12 volts and 5 watts.
• The 194 is an ANSI-standard designation recognized in the United States and Canada, also a T10 miniature wedge bulb, rated at 12 volts and 3.78 watts, making it slightly lower in wattage than the 12961.
• Although both the 12961 and 194 share the T10 wedge shape, their wattage ratings differ, and direct substitution between the two types is not confirmed by these specifications.
• The W2.1x9.5d base designation on the 12961 describes a wedge-type base with a 2.1 mm wire width and a 9.5 mm pin spread, which is the standard geometry for T10 wedge bulbs.
• The Mazda 6 (2014-2017) uses the 12961 bulb for the license plate position, as does the 2003-2008 model year range, with the exception of 2005, which is not present in the specifications.
• The 194 bulb is specified for the Mazda 6 license plate position across the 2009-2013 model years.