Chevrolet Blazer Map Light Bulb Size

Additional Notes

• The Chevrolet Blazer map light specifications reference six distinct bulb types across the 1989-2003 model years: the 192, 212-2, 168, 194, 211-2, and 906.
• The T10 wedge form factor is the most frequently specified bulb type across these years, appearing in the 192, 168, 194, and 906 designations, all of which share a 12V operating voltage but differ in wattage.
• Among the T10 wedge bulbs listed, wattage varies considerably, ranging from 3W for the 192 to 8W for the 906, with the 168 rated at 4.9W and the 194 at 3.78W. These differences affect light output and are not interchangeable without consideration of the original specification.
• The 211-2 and 212-2 are both festoon bulbs with a 41mm length and an SV8.5 base, each rated at 12V and 12W. Despite their near-identical specifications, they carry separate ANSI designations and should be treated as distinct part numbers.
• The Chevrolet Blazer (2001-2003) uses the 192 bulb for the map light, while the 1995-1997 model years use the 194. Both are T10 wedge bulbs at 12V, but their wattage ratings differ, making them non-equivalent replacements.
• The 1998 and 2000 model years specify the 212-2 festoon bulb, whereas the 1993-1994 model years specify the 211-2. The physical and electrical specifications of these two festoon types are identical, though their ANSI designations differ.
• The 906 bulb, specified for the 1989-1991 model years, carries the highest wattage among the T10 wedge types listed at 8W, more than double the wattage of the 192 used in later years.
• All six bulb types in these specifications conform to ANSI standards recognized in both the United States and Canada, indicating standardized production tolerances across the listed part numbers.