Oldsmobile Aurora Dome Light Bulb Size

The Oldsmobile Aurora dome light requires bulb size 168 or 906 depending on the specific vehicle configuration. Data for the bulb specifications covers the range from 1995 to 1999.

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
1996-1999	168
1995	906

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 8W.	906

Other Locations

Additional Notes

The 168 bulb is the dome light specification for the Oldsmobile Aurora across the 1996-1999 model years, while the 906 bulb applies to the 1995 model year.
Both the 168 and 906 are ANSI-standardized bulbs recognized in the United States and Canada, and both follow the T10 miniature wedge form factor.
The T10 wedge base is a small, tapering plastic base that seats directly into a socket without a separate metal holder, which is a common design in interior automotive lighting.
Although the 168 and 906 share the same T10 wedge base type, they are not interchangeable for this application due to a difference in wattage.
The 168 operates at 12V and 4.9W, while the 906 operates at 12V and 8W, meaning the 906 draws noticeably more current for the same 12V supply.
The higher wattage of the 906 in the 1995 Aurora indicates that the dome light circuit for that model year was designed to handle a greater electrical load than the circuit used in the 1996-1999 years.
Installing a 906 in place of a 168, or vice versa, risks either insufficient illumination or excessive current draw relative to what the socket and circuit were rated for in a given model year.
The shared T10 physical form between the two bulb types means a substitution is physically possible, making the wattage distinction a critical fitment consideration rather than an obvious mechanical one.