Chevrolet Blazer Sun Visor Bulb Size

The Chevrolet Blazer sun visor utilizes a specific 37 bulb size for illumination within the interior cabin area. Available data for the specified component covers the period from 1995 through 2003.

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
1995-2003	37

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Miniature wedge bulb (T5). 12V, 1W.	37

Other Locations

Additional Notes

The Chevrolet Blazer uses the 37 bulb for the sun visor across all listed model years, spanning 1995-2003.
The 37 bulb is an ANSI-standardized type recognized in both the United States and Canada, meaning it conforms to a defined set of electrical and physical criteria shared across manufacturers.
It is classified as a T5 miniature wedge bulb. The T5 designation refers to the tubular glass envelope, which is 5/8 of an inch wide, and the wedge base type means the bulb is held in its socket by the pinched glass base rather than by metal pins or a bayonet fitting.
The 37 bulb operates at 12 volts and draws 1 watt, placing it among the lowest-output bulbs used in automotive interior applications. This low wattage is consistent with its role as a courtesy or vanity light rather than a primary illumination source.
Because the same bulb size applies uniformly across the 1995-2003 Blazer model years, a single part number covers the full range of listed fitments without variation.
The wedge base format of the 37 bulb is not interchangeable with bayonet-base or screw-base miniature bulbs, even when voltage and wattage ratings are otherwise similar. Socket compatibility depends on the base type, not electrical ratings alone.