Mazda B3000 License Plate Bulb Size

The Mazda B3000 license plate light uses 194 and 168 bulb sizes according to the provided specifications for the exterior lighting system. Data for the lighting components covers the range from 1994 to 2007.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Bulb Size by Year Range

Years	US Type	EU Type	Shop
2006-2007	194	W5W	Check Price
2003-2005	168	W5W	Check Price
1998-2002	194	W5W	Check Price
1994-1996	194	W5W	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.	194	Check Price
ECE standard (Europe & worldwide). Single-filament signalling bulb with W2.1x9.5d wedge base. 12V, 5W.	W5W	Check Price
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168	Check Price

Other Locations

Additional Notes

The Mazda B3000 license plate position uses two distinct bulb sizes across its production years: the 194 and the 168, both of which are ANSI-standardized miniature wedge bulbs classified under the T10 form factor.
Both the 194 and 168 bulbs share the same T10 wedge base and operate on a 12-volt circuit, which means they are physically interchangeable in terms of socket fitment.
Despite their physical similarity, the 194 and 168 differ in wattage. The 194 draws 3.78 watts, while the 168 draws 4.9 watts, making them electrically distinct from one another.
The 194 bulb is the more widely specified of the two across the B3000 model range, appearing in the 1994-1996, 1998-2002, and 2006-2007 model years.
The 168 bulb applies to the Mazda B3000 for the 2003-2005 model years.
Because the 194 and 168 share the T10 wedge base, a 168 bulb can be seated in a socket designed for a 194, and vice versa. However, the difference in wattage means the two are not true electrical equivalents.
Both bulb types carry ANSI standardization recognized in the United States and Canada, indicating conformance to a defined set of performance and construction criteria within those markets.