Freightliner M2 Map Light Bulb Size

The Freightliner M2 map light uses a 211-2 bulb size for interior illumination across multiple production generations. The replacement chart covers vehicle data spanning from 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 the map light across all listed model years, spanning 2003-2022.
The 211-2 is a festoon-type bulb, meaning it is cylindrical in form and held in place by tension between two end caps rather than by a socket with a locking mechanism.
The 211-2 operates at 12 volts and draws 12 watts, which is consistent with standard automotive low-voltage electrical systems.
The bulb carries an SV8.5 base designation, referring to the 8.5mm cap size at each end of the festoon body, a measurement that determines physical fitment within the lamp holder.
The physical length of the 211-2 is 41mm, a specification that governs whether the bulb will seat correctly under the spring-loaded contacts of the map light housing.
The 211-2 conforms to ANSI standards applicable in both the United States and Canada, indicating a standardized specification recognized across North American markets.
The 211-2 designation is shared with other festoon bulbs of similar construction, but substitutions with differing lengths or base sizes would not be physically compatible with the 41mm, SV8.5 housing specification.