The Lexus LX470 brake light uses a 7443 bulb size for the specific lighting components located at the rear of the vehicle. Data for the specified lighting equipment 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 all brake light positions for the 1998-2005 model years.
The 7443 is an ANSI-standard bulb recognized in the US and Canada, operating at 12 volts with a dual-filament wedge configuration in a T20 form factor.
Its dual-filament design carries two wattage ratings: 21W for the high-intensity filament and 5W for the low-intensity filament, which allows a single bulb to serve both brake and tail light functions.
The T20 wedge base eliminates a separate metal base or bayonet pins, as the bulb is held in place by the socket walls alone.
The inner brake and outer brake positions on the LX470 both call for the 7443, meaning both positions share the same replacement part.
The 1998 inner and outer brake fitment carries a production date qualifier of "From 01/1998," indicating the specification applies to units produced from January 1998 onward within that model year.
The 2005 inner and outer brake fitment carries a production date qualifier of "To 05/2005," indicating the specification applies to units produced through May 2005 within that model year.
A closely related bulb, the 7440, shares the same T20 wedge base but is a single-filament type. Substituting a 7440 for a 7443 in a dual-filament socket would result in the loss of one lighting function.