The Toyota Sequoia tail light requires bulb size 194 or 7443 depending on the specific configuration of the lighting assembly. Data for the bulbs covers the range from 2021 to 2022.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 7443 bulb is a dual-filament wedge type in the T20 form factor, rated at 12V with a power draw of 21W on the primary filament and 5W on the secondary. This dual-filament design allows a single bulb to serve both stop and tail light functions within the outer tail light housing of the Toyota Sequoia across all listed model years from 2001 to 2021.
The 194 bulb is a single-filament miniature wedge type in the T10 form factor, rated at 12V and 3.78W. It is used in the inner tail light position on the Toyota Sequoia for model years 2005-2020, as well as in the outer tail light position for the 2022 model year.
The 168 bulb shares the same T10 miniature wedge form factor as the 194 but draws more power at 4.9W versus 3.78W. It is specified for the inner tail light on the Sequoia for model years 2001-2004.
Although the 194 and 168 bulbs share the same T10 wedge base and are physically interchangeable in many applications, they carry different wattage ratings. Substituting one for the other in the Sequoia's inner tail light positions may not meet the original equipment specification for the respective model years.
All three bulb types listed, the 194, 168, and 7443, conform to ANSI standards applicable in both the United States and Canada, and all operate on a 12V electrical system.
The outer tail light position on the Sequoia uses the larger T20 wedge base of the 7443, which is physically incompatible with the T10 wedge base used by the 194 and 168 bulbs. The two form factors are not interchangeable despite sharing the same wedge-style base design.
The 2022 Sequoia outer tail light is specified with a 194 bulb, while the 2021 model uses a 7443 in the same position. These two consecutive model years require different bulb types for the outer tail light, and parts sourced for one year are not applicable to the other.