Dodge Durango Map Light Bulb Size

Additional Notes

• The Dodge Durango map light draws from two distinct bulb families across its model history: festoon-style bulbs and miniature wedge bulbs. Festoon bulbs are cylindrical lamps that seat between two spring-loaded contacts, while wedge bulbs use a plastic base wedged directly into the socket.
• The 214-2 is the most frequently specified bulb across the Durango's map light history, covering the 2004, 2008, and 2015-2018 model years. It is a festoon bulb rated at 12V and 12W, with an SV8.5 base and a 41mm length.
• The 12961 is a Philips part number designating a T10 miniature wedge bulb with a W2.1x9.5d base, rated at 12V and 5W. It is specified for the Dodge Durango across the 2011-2014 model years, and its wattage is notably lower than the festoon bulbs used in other years.
• The 212-2 and 214-2 share the same physical format: both are 41mm festoon bulbs with an SV8.5 base, rated at 12V and 12W. Despite these similarities, they carry different ANSI designations and are listed as separate part numbers, which is relevant to fitment decisions.
• The 578 is a 41mm festoon bulb rated at 12V and 12W, but it uses end-cap contacts rather than an SV8.5 base. This contact style differs from the 214-2 and 212-2, making the three bulbs physically non-interchangeable despite sharing the same length and wattage.
• The 579 is specified for the 1998-2000 Dodge Durango and is the only 44mm festoon bulb in these specifications. Its greater length distinguishes it from the 41mm festoon types, and substituting a 41mm bulb in a 44mm socket would result in an improper fit.
• The 194 is a T10 miniature wedge bulb rated at 12V and 3.78W, specified for the 2001-2003 Durango. It operates at a lower wattage than the 12961 wedge bulb used in later years, and the two are not listed as interchangeable despite sharing the T10 form factor.
• Across the full model range, the map light socket type changed multiple times, meaning bulbs from one generation of the Durango are not necessarily compatible with another, even when voltage and wattage ratings are similar.