The Lexus LX470 tail light utilizes a 7443 bulb size for the rear lighting assembly. Data for the specified component covers the period from 1998 through 2005.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Lexus LX470 uses the 7443 bulb across both its inner and outer tail light positions for the entire production span covered by these specifications.
The 7443 is a dual-filament wedge bulb in the T20 form factor, rated at 12 volts with a 21W/5W output, meaning the two filaments serve separate functions at different wattages within a single housing.
The higher 21W filament typically handles the brake or turn signal function, while the lower 5W filament serves as the running or parking light, both contained within the same bulb.
The 7443 designation follows the ANSI standard used in the United States and Canada, which defines the bulb's electrical and physical characteristics for those markets.
The wedge base design of the T20 bulb means it is held in place by the socket itself rather than by a separate bayonet or screw mechanism, which is a defining physical trait of this bulb family.
The 1998 model year inner and outer tail light fitment carries a "From 01/1998" notation, indicating the specification applies only to vehicles produced from January 1998 onward within that model year.
The 2005 model year inner and outer tail light fitment carries a "To 05/2005" notation, indicating the specification applies only to vehicles produced up to May 2005 within that model year.
The identical 7443 fitment across both the inner and outer tail light positions means a single bulb type serves all tail light sockets on the Lexus LX470 throughout the 1998-2005 production period covered here.
Because the 7443 is a dual-filament bulb, substituting a single-filament alternative such as the 7440 would result in the loss of one lighting function, making direct replacement with the correct dual-filament type necessary for proper operation.