Mazda MX-6 License Plate Bulb Size

Additional Notes

• The Mazda MX-6 license plate position uses two distinct bulb sizes across its model years: the 168 and the 194, both of which are ANSI-standardized miniature wedge bulbs classified under the T10 form factor.
• Both the 168 and 194 bulbs share the same T10 wedge base and operate on a 12-volt circuit, which means they are physically interchangeable in terms of socket fit.
• Despite the shared T10 base and voltage rating, the 168 and 194 differ in wattage. The 168 draws 4.9 watts while the 194 draws 3.78 watts, making them electrically distinct and not true drop-in equivalents for one another.
• The 168 bulb is specified for the Mazda MX-6 across the majority of its production span, covering the 1988-1991 and 1993-1997 model years.
• The 1992 Mazda MX-6 is specified with the 194 bulb for the license plate position, setting it apart from all other model years in the lineup.
• The T10 wedge base is a common automotive format in which the bulb is held in place by the tension of the socket itself rather than by a bayonet or screw mechanism, requiring no rotation during installation or removal.
• Both bulbs conform to ANSI standards applicable in the United States and Canada, indicating consistent electrical and physical tolerances across manufacturers producing these part numbers.