Eagle Summit Dome Light Bulb Size

The Eagle Summit dome light requires bulb size 211-2, 906, or DE3175 depending on the specific version. Data for 1989 through 1992 provides the necessary information for identifying the correct component.

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
1992	211-2
1990-1991	906
1989	DE3175

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Festoon bulb, 41mm length, SV8.5 base. 12V, 12W.	211-2
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 8W.	906
ANSI standard (US & Canada). Festoon bulb, 31mm length, end-cap contacts. 12V.	DE3175

Other Locations

Additional Notes

The Eagle Summit dome light specifications cover model years 1989-1992, with three distinct bulb types used across that span: the 211-2, the 906, and the DE3175.
The 906 bulb is a miniature wedge-type bulb in the T10 form factor, rated at 12V and 8W under the ANSI standard applicable in both the US and Canada. It was fitted to the 1990-1991 Eagle Summit.
The 211-2 is a festoon-style bulb with a 41mm length and an SV8.5 base, rated at 12V and 12W. The SV8.5 base designation refers to a bayonet-style festoon base with a nominal 8.5mm cap width.
The 1992 Eagle Summit uses the 211-2 bulb, which draws 12W compared to the 8W rating of the 906 used in the two preceding years, indicating a higher wattage requirement for that model year.
The DE3175 is a festoon bulb with a 31mm length that makes contact through end-cap terminals rather than a keyed base. It was specified for the 1989 Eagle Summit dome light.
The 211-2 and DE3175 are both festoon bulbs but are not interchangeable. The 211-2 measures 41mm in length with an SV8.5 base, while the DE3175 measures 31mm with end-cap contacts, making the physical and electrical configurations incompatible.
The 906 wedge bulb and the festoon-type bulbs (211-2 and DE3175) use fundamentally different mounting systems. Wedge bulbs are retained by the socket itself gripping the base, whereas festoon bulbs are held between spring clips or end contacts within the housing.
All three bulb types in these specifications conform to ANSI standards recognized in both the US and Canada, meaning they share a common regulatory classification across those markets.
No wattage value is listed in the DE3175 specification, whereas the 211-2 is rated at 12W and the 906 at 8W.
Because the dome light bulb type changed in each distinct period across 1989-1992, year-specific verification is necessary before substitution, as no single bulb type covers the full range of these model years.