Mazda RX-8 Map Light Bulb Size

The Mazda RX-8 map light requires a bulb size of 12961 for proper installation and function within the interior overhead lighting housing. Available data for the specific component covers a time range from 2004 through 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	Bulb Size
2004-2011	12961

Bulb Specifications

Description	Bulb Size
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12961

Other Locations

Additional Notes

The Mazda RX-8 uses the 12961 bulb for the map light across all model years covered by these specifications, spanning 2004-2011.
The 12961 is a Philips part number designating a miniature wedge bulb in the T10 form factor.
T10 refers to the bulb's tubular shape, with the number indicating a width of 10 millimeters.
The 12961 uses a W2.1x9.5d wedge base, which is a pushpin-style connector that requires no socket pins, relying instead on the wedge-shaped glass envelope to make electrical contact.
The bulb operates at 12 volts and 5 watts, consistent with low-current interior lighting applications in standard automotive electrical systems.
The W2.1x9.5d base designation is shared by several T10 bulbs across different manufacturers, meaning physical fitment alone does not confirm electrical equivalence with other bulbs carrying the same base type.
The 12961 is a halogen incandescent bulb, which produces light through a tungsten filament enclosed in a halogen gas environment.
Because the 12961 designation is specific to Philips, equivalent bulbs from other manufacturers are cross-referenced by their T10 W2.1x9.5d base and 12V/5W rating rather than by this part number.