Chevrolet Astro Glove Box Bulb Size

The Chevrolet Astro glove box utilizes a single 194 bulb size for the interior compartment lighting component. Available data covers a continuous range from 1985 through 2005 for the specified vehicle.

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
1985-2005	194

Bulb Specifications

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

Other Locations

Additional Notes

The Chevrolet Astro uses the 194 bulb for the glove box across all model years from 1985 to 2005.
The 194 is a miniature wedge-base bulb in the T10 form factor, which refers to its tubular glass envelope width measured in eighths of an inch.
The 194 bulb operates at 12 volts and draws 3.78 watts, placing it in the low-wattage range typical of interior illumination applications.
The wedge base design means the bulb is held in its socket by the tension of the base contacts alone, with no separate metal cap or bayonet pins involved in retention.
The 194 carries ANSI standardization recognized in both the United States and Canada, meaning bulbs sold under this designation conform to a defined specification regardless of manufacturer.
Because the 194 is an ANSI-standardized type, it is produced by multiple manufacturers and is widely available as a direct replacement without modification to the socket.
The T10 wedge format is also shared by several other ANSI bulb numbers, so substitution with a different T10-based bulb number is not automatically interchangeable, as wattage and voltage ratings may differ.
The single bulb designation across the full 1985-2005 production span of the Chevrolet Astro indicates that the glove box socket design remained unchanged throughout the vehicle's production run.