The Toyota Highlander uses a 7443 bulb for the brake light component according to the provided technical specifications. Data for the specific bulb application covers the range from 2001 to 2016.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 7443 is a dual-filament wedge bulb following the T20 form factor, rated at 12V with a 21W filament for the brake function and a 5W filament for the tail or parking function. Its dual-filament design allows a single bulb to serve two lighting roles within one housing.
The 921 is a single-filament wedge bulb following the T15 form factor, rated at 12V and 16W. Unlike the 7443, it carries only one filament, making it suited for dedicated single-function applications such as the center high mount stop light.
Both the 7443 and 921 conform to ANSI standards as recognized in the United States and Canada, meaning their electrical and physical specifications are governed by a defined industry standard rather than a proprietary format.
The Toyota Highlander uses the 7443 for brake lighting across the 2001-2016 model years, with the outer brake position also extending into the 2017 model year for vehicles produced through November 2016.
The 921 bulb is specified for the center high mount stop light on the Toyota Highlander for the 2001-2005 model years. This position is separate from the outer brake lights, which use the 7443 across all listed years.
The 7443 and 921 are both wedge-type bulbs but belong to different form factor families, T20 and T15 respectively. These two types are not interchangeable, as they differ in physical size, wattage, and filament count.
The 2017 outer brake specification carries a production date qualifier of "To 11/2016," and the 2001 outer brake specification carries a qualifier of "From 11/2000." Similarly, the 2014 outer brake entry applies from December 2013, and the 2010 entry applies through August 2010. These qualifiers indicate that the 7443 fitment is tied to specific production windows within those model years rather than the full calendar year.