Honda Ridgeline Dome Light Bulb Size

The Honda Ridgeline dome light requires a 12961 bulb size for proper installation within the interior overhead housing. Data for the specific bulb requirements covers the range from 2018 through 2024.

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 Type	Shop
2023-2024	12961	Check Price
2018-2020	12961	Check Price

Bulb Specifications

Description	Type	Shop
Philips part number. Miniature wedge bulb (T10) with W2.1x9.5d base. 12V, 5W.	12961	Check Price

Other Locations

Additional Notes

The 12961 is a Philips part number designating a miniature wedge bulb in the T10 form factor, fitted with a W2.1x9.5d base. It operates at 12 volts and draws 5 watts.
The W2.1x9.5d base is a wedge-type connection, meaning the bulb is held in place by tension from the socket rather than by a bayonet or screw mechanism. This base type is common across a wide range of low-wattage automotive interior applications.
The Honda Ridgeline uses the 12961 bulb for the dome light across the 2018-2020 and 2023-2024 model years.
The T10 designation refers to the bulb's body width, expressed in tenths of an inch, placing it in the smaller end of the wedge bulb family. T10 bulbs are widely used in interior lighting positions such as dome, map, and courtesy lights.
At 5 watts and 12 volts, the 12961 draws a relatively low current, consistent with standard incandescent interior lighting in passenger vehicles.
Because the 12961 uses a W2.1x9.5d wedge base, any replacement bulb intended for the same socket position must share that base type to seat correctly and make proper electrical contact.