Freightliner M2 Dome Light Bulb Size

The Freightliner M2 dome light requires a 211-2 bulb size for proper illumination. The replacement chart covers vehicle production spanning 2003 to 2022.

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
2003-2022	211-2	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Festoon bulb, 41mm length, SV8.5 base. 12V, 12W.	211-2	Check Price

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Additional Notes

The Freightliner M2 uses the 211-2 bulb for its dome light across the 2003-2022 model years.
The 211-2 is a festoon-type bulb, meaning it is cylindrical in form and mounts by pressing between two spring clips at each end rather than inserting into a socket.
The 211-2 operates at 12 volts and draws 12 watts, placing it in the range typical of interior courtesy and dome lighting applications.
The bulb measures 41mm in length and uses an SV8.5 base designation, which refers to the 8.5mm width of the end caps on a festoon-type bulb.
The 211-2 carries ANSI standardization recognized in both the United States and Canada, indicating the specification conforms to a defined and regulated performance standard in those markets.
The SV8.5 base type is shared by several festoon bulbs of varying lengths, so length compatibility at 41mm is a relevant factor when substituting one festoon bulb for another.