Dodge Ram 1500 Map Light Bulb Size

Additional Notes

• The Dodge Ram 1500 map light specifications cover model years 1995 through 2010 and reference three distinct bulb sizes: 211-2, 212-2, and 192.
• The 212-2 is the most frequently specified bulb across this range, appearing in model years 1996-2003, 2005, and 2010.
• The 212-2 is a festoon-type bulb with an SV8.5 base, rated at 12 volts and 12 watts, and conforms to ANSI standards applicable in the US and Canada.
• Festoon bulbs are cylindrical lamps that mount by pressing their end caps into spring clips, rather than inserting into a socket, which is a common fitment method in interior automotive lighting.
• The 211-2 shares the same festoon form factor, SV8.5 base, 41mm length, and 12V/12W electrical rating as the 212-2, making the two bulbs technically very similar.
• Despite their similarities, the 211-2 and 212-2 carry different ANSI designations, and the specifications list them as distinct part numbers for different model years, so substitution between them warrants caution.
• The 192 is a T10 miniature wedge bulb rated at 12 volts and 3 watts, a significantly lower wattage than the festoon types specified for other years.
• The T10 wedge base on the 192 bulb is physically incompatible with the SV8.5 festoon clips used by the 212-2 and 211-2, meaning these bulb types are not interchangeable with one another.
• The 192 bulb is specified for the Dodge Ram 1500 map light in model years 2004 and 2006-2009, representing a departure from the festoon-type fitment used in surrounding years.
• All three bulb types listed in the specifications conform to ANSI standards recognized in both the United States and Canada.