Mercedes-Benz G550 4x4 Dome Light Bulb Size

The Mercedes-Benz G550 4x4 dome light requires a 6411 bulb size for proper installation within the interior cabin. Data for the specific component covers the range from 2017 to 2018.

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
2017-2018	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 6411 is the dome light bulb size for the Mercedes-Benz G550 4x4 across the 2017-2018 model years.
The 6411 bulb follows the ANSI standard, which governs bulb specifications in the United States and Canada.
It is a festoon-type bulb, meaning it is cylindrical in shape and mounts by pressing between two spring clips at each end rather than inserting into a socket.
The 6411 has a length of 36mm, which is a defining fitment factor for festoon bulbs, as an incorrect length will prevent proper contact with the mounting clips.
The bulb uses an SV8.5 base designation, which refers to the diameter of the metal end caps on a festoon bulb, measured in millimeters.
It operates at 12 volts and draws 5 watts, consistent with standard low-power interior lighting in passenger vehicles.