Chevrolet Astro Ash Tray Bulb Size

The Chevrolet Astro ash tray utilizes 194, 161, and 168 bulb sizes depending on the specific production period. Available data covers the range from 1985 through 2005.

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
1996-2005	194
1988-1995	161
1985-1987	168

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.	194
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 1W.	161
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168

Other Locations

Additional Notes

The Chevrolet Astro uses three distinct bulb sizes for the ash tray position across its production run: the 194, 161, and 168, all of which are ANSI-standardized miniature wedge bulbs of the T10 type operating on a 12V circuit.
The 194 bulb is rated at 3.78W and fits the Chevrolet Astro ash tray for model years 1996-2005, representing the longest continuous fitment period among the three bulb types listed.
The 161 bulb is rated at 1W, making it the lowest-wattage of the three types. It is specified for the ash tray position on the Astro for model years 1988-1995.
The 168 bulb carries a 4.9W rating, the highest wattage among the three types listed. It is specified for the Astro ash tray for model years 1985-1987.
Although the 194, 161, and 168 bulbs share the same T10 wedge base form factor, their wattage ratings differ significantly, ranging from 1W to 4.9W. Substituting one for another without accounting for wattage differences may affect circuit load and illumination output.
All three bulb types conform to ANSI standards applicable in both the United States and Canada, indicating a standardized electrical and physical specification rather than a proprietary or regional-only part.