Lexus GS300 Back Up Light Bulb Size

The Lexus GS300 back up light utilizes bulb sizes 921, 7440, 1156, and P21W depending on the specific version of the vehicle. Data for the components covers the range from 1993 to 2006.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Back Up Light

YearsBulb Size
2001-2006921
1998-20007440
1993-19971156

Inner Back Up Light

YearsBulb Size
2006921 (To 07/2006)
19971156 (To 08/1997)
19961156

Outer Back Up Light

YearsBulb Size
2001-2005921
2000921 (From 07/2000)
7440 (To 07/2000)
1998-19997440
19951156

Bulb Specifications

Description Bulb Size
ANSI standard (US & Canada). Wedge bulb (T15). 12V, 16W.921
ANSI standard (US & Canada). Single-filament wedge bulb (T20). 12V, 21W.7440
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W.1156

Other Locations

Additional Notes