Saturn L300 Map Light Bulb Size

The Saturn L300 map light requires a 12961 bulb size for proper installation within the interior overhead housing. Data provided for the specific bulb covers the range from 2001 to 2005.

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
2001-2005	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 Saturn L300 uses the 12961 bulb for the map light across all listed model years, spanning 2001-2005.
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 base, which is the standard wedge-type base common to many low-wattage automotive interior bulbs.
The bulb operates at 12 volts, consistent with the standard electrical system voltage found in passenger vehicles.
At 5 watts, the 12961 is a low-power bulb suited to interior courtesy and reading light applications such as map lights.
The W2.1x9.5d base type is not compatible with bayonet or festoon-style sockets, and substitution with those base types is not supported by these specifications.