Dodge Caravan Dome Light Bulb Size

Additional Notes

• The Dodge Caravan dome light specifications cover model years 1984 through 2007 and reference four distinct bulb sizes across that span: 578, 579, 212-2, and 211-2.
• All four bulb types are ANSI-standardized festoon bulbs rated at 12V and 12W, meaning they share identical electrical characteristics despite their physical differences.
• The 578 and 212-2 bulbs both measure 41mm in length, as does the 211-2, while the 579 measures 44mm, making it the longest of the four types listed.
• The 578 uses end-cap contacts, whereas the 212-2 and 211-2 use an SV8.5 base, meaning these bulb types are not physically interchangeable even when their length is the same.
• The 579 also uses end-cap contacts, placing it in the same contact family as the 578, though its greater length distinguishes it physically from the 578.
• The Dodge Caravan (2001-2007) specifies the 578 bulb for the dome light, representing the longest continuous run of a single bulb type across the model years covered.
• The 1996-2000 model years specify the 579 bulb, which, despite sharing the same wattage and contact style as the 578, is 3mm longer and is not a direct drop-in replacement.
• The 1993-1995 model years specify the 212-2 bulb, which shares its 41mm length with the 578 but differs in base type, making cross-substitution between these two physically incompatible.
• The 211-2 and 212-2 bulbs share identical length, base type, voltage, and wattage ratings, placing them in closely related categories within the ANSI festoon family.
• The 1984-1988 model years specify the 211-2 bulb, which carries the same physical and electrical specifications as the 212-2 used in the immediately following years.