The Toyota Highlander tail light utilizes a 7443 bulb size for illumination across various production versions. Data for the specified component covers the period from 2001 through 2016.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 7443 is the most widely used bulb type across the Toyota Highlander tail light specifications, appearing in the outer tail light position across model years spanning 2001-2017, with certain date-of-production qualifiers applying to the 2001, 2010, and 2017 entries.
The 7443 is a dual-filament T20 wedge bulb rated at 12V with a 21W/5W output, meaning its two filaments serve separate functions, typically stop/tail or turn/tail combinations within a single housing.
The 168 is a single-filament T10 miniature wedge bulb rated at 12V and 4.9W, a significantly lower wattage than the 7443, reflecting its role in a lower-intensity inner tail light position.
Both the 168 and 7443 conform to ANSI standards applicable in the United States and Canada, indicating standardized base and envelope dimensions that govern physical fitment.
The inner tail light position on the Toyota Highlander uses the 168 bulb for model years 2014-2017, with the 2014 entry carrying a "From 12/2013" qualifier and the 2017 entry carrying a "To 11/2016" qualifier, meaning fitment is tied to production date rather than model year alone.
The outer tail light for the 2017 Toyota Highlander specifies the 7443 with a "To 11/2016" production cutoff, and the 2010 entry carries a "To 08/2010" cutoff, indicating mid-year production changes that affect which bulb applies to a given vehicle.
The 2001 outer tail light entry specifies the 7443 with a "From 11/2000" qualifier, reflecting that the Highlander's production for that model year began partway through the calendar year 2000.
Because the T10 and T20 wedge bases are physically different sizes, the 168 and 7443 are not interchangeable, and substituting one for the other in a given socket is not supported by these specifications.