Freightliner 114SD Map Light Bulb Size

The Freightliner 114SD map light requires a 211-2 bulb size for proper installation and function within the interior lighting system. Data for the specified component covers the period from 2012 through 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 Type	Shop
2012-2018	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 211-2 is the sole map light bulb type specified for the Freightliner 114SD across all listed model years, covering 2012-2018.
The 211-2 is an ANSI-standardized bulb recognized in both the United States and Canada, meaning it conforms to a defined set of electrical and physical specifications shared across compliant manufacturers.
As a festoon bulb, the 211-2 is cylindrical in form and mounts by pressing its two end caps into spring-loaded clips rather than using a threaded or bayonet socket.
The 211-2 operates on a 12-volt electrical system and draws 12 watts, which is consistent with standard automotive interior lighting circuits.
The bulb measures 41mm in length and uses an SV8.5 base, meaning only festoon bulbs of that specific length and base type are compatible with the 114SD map light housing.
The SV8.5 designation refers to the base width of 8.5mm across the end caps, a factor that determines whether a festoon bulb physically seats correctly in its holder.
Because festoon bulbs of the same length but different base widths exist, substituting a bulb without confirming both the 41mm length and SV8.5 base risks an improper fit in the Freightliner 114SD map light socket.