International ProStar Dome Light Bulb Size

The International ProStar dome light utilizes a 211-2 bulb size for interior illumination purposes within the cabin area. Data for the specified component covers the range from 2008 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 Size
2008-2018	211-2

Bulb Specifications

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

Other Locations

Additional Notes

The International ProStar uses the 211-2 bulb for its dome light across all model years from 2008 to 2018.
The 211-2 is a festoon-type bulb, meaning it is cylindrical in shape and mounts by pressing between two spring-clip contacts at each end rather than inserting into a socket.
The 211-2 bulb measures 41mm in length and uses an SV8.5 base, which refers to the 8.5mm cap width at each end of the festoon body.
The bulb operates at 12 volts and draws 12 watts, which is consistent with standard 12V automotive electrical systems found in commercial trucks.
The 211-2 designation follows ANSI standards recognized in both the United States and Canada, indicating a standardized specification rather than a proprietary part.
The SV8.5 base designation is shared by several festoon bulbs of varying lengths, so base type alone does not confirm interchangeability. The 41mm length of the 211-2 is a critical fitment factor for the ProStar dome light housing.
A closely related bulb, the 211, shares the same base and voltage but differs in wattage, which means it is not a direct equivalent to the 211-2 despite the similar designation.