Jaguar XKR-S Dome Light Bulb Size

The Jaguar XKR-S dome light requires a 6411 bulb size for proper installation within the interior overhead lighting housing. Data for the specified component covers the range from 2012 through 2015.

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
2012-2015	6411

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 36mm length, SV8.5 base. 12V, 5W.	6411

Other Locations

Additional Notes

The Jaguar XKR-S uses the 6411 bulb for the dome light across the 2012-2015 model years.
The 6411 is an ANSI-standardized bulb designation, meaning it conforms to a defined set of electrical and physical specifications recognized across the United States and Canada.
The 6411 is a festoon-style bulb, which means it is cylindrical in shape and mounts by pressing its two end caps into spring clips rather than inserting into a socket.
The bulb operates at 12 volts and 5 watts, which is consistent with low-current interior lighting applications in passenger vehicles.
The SV8.5 base type refers to the metal end caps on a festoon bulb with an 8.5mm cap width, a detail relevant when sourcing a direct replacement.
The 6411 has a 36mm length, which is a physical fitment constraint for the festoon holder in the dome light housing.
When replacing the dome light bulb, the 36mm length and SV8.5 base must both match, as festoon bulbs of different lengths or cap widths will not seat correctly even if the voltage and wattage ratings are otherwise compatible.