Mazda RX-8 Back Up Light Bulb Size
The Mazda RX-8 back up light utilizes bulb size 921 and bulb size 7440 for the rear lighting system. Data for the specified components covers the range from 2004 to 2011.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
Bulb Size by Year Range
| Years | US Type | EU Type | Shop |
|---|---|---|---|
| 2009-2011 | 921 | W16W | Check Price |
| 2004-2008 | 7440 | W21W | Check Price |
Bulb Specifications
| Description | Type | Shop |
|---|---|---|
| ANSI standard (US & Canada). Wedge bulb (T15). 12V, 16W. | 921 | Check Price |
| ANSI standard (US & Canada). Single-filament wedge bulb (T20). 12V, 21W. | 7440 | Check Price |