The Lexus LX470 front side marker uses a 168 bulb size, while rear side markers accommodate 168 and 7443 bulb sizes. The replacement chart covers vehicle production years from 1998 to 2007 with corresponding bulb specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Lexus LX470 uses two distinct bulb types across its side marker positions: the 168 and the 7443, both of which conform to ANSI standards recognized in the United States and Canada.
The 168 bulb is a T10 miniature wedge type rated at 12V and 4.9W, placing it in the low-wattage range typical of small indicator and marker applications.
The 7443 bulb is a T20 wedge type with a dual-filament design, rated at 12V with a 21W primary filament and a 5W secondary filament, making it significantly more powerful than the 168.
The dual-filament construction of the 7443 allows it to serve two brightness levels within a single housing, a characteristic that distinguishes it functionally from the single-filament 168.
The front side marker position on the Lexus LX470 uses the 168 bulb across all model years from 1998-2007.
The rear side marker position on the LX470 uses the 7443 bulb for model years 1998-2005, then transitions to the 168 bulb for 2006-2007.
Because the 168 (T10) and 7443 (T20) differ in both physical size and wattage, the two types are not interchangeable between positions.
Owners of 2006-2007 LX470 models have a uniform 168 bulb specification across both front and rear side marker positions, whereas earlier model years require different bulb types depending on the position.