Hyundai Santa Fe Map Light Bulb Size

Additional Notes

• The Hyundai Santa Fe map light specifications reference two distinct bulb formats across its model years: the miniature wedge type (T10 base) and the festoon type. The wedge format uses a plastic wedge base inserted directly into a socket, while the festoon format is a cylindrical bulb held in place by spring-loaded end-cap contacts at each end of a housing.
• The 904 bulb is a T10 miniature wedge type rated at 12 volts and 8 watts. It carries ANSI standard designation and is recognized in both the United States and Canada. This bulb appears in the Santa Fe map light position for the 2006-2012 and 2021-2023 model years.
• The DE3425 is a festoon bulb with a 41mm length, operating at 12 volts with end-cap contacts. It is also ANSI-rated for the US and Canadian markets. The Santa Fe uses this bulb for the map light across the 2013-2020 model years, with a trim-level condition noted for 2019-2020.
• For the 2019 and 2020 Hyundai Santa Fe, the DE3425 fitment applies specifically to vehicles equipped with halogen capsule headlamps. This condition indicates that headlamp type is a relevant factor in determining the correct map light bulb for those years.
• The 2007 model year carries two separate entries. Vehicles produced through December 31, 2006 use the DE3175, a shorter 31mm festoon bulb, while the remainder of the 2007 model year uses the 904 wedge bulb. This split reflects a mid-cycle production change within a single model year.
• The DE3175 and DE3425 are both festoon bulbs sharing the same end-cap contact design and 12-volt rating, but their lengths differ at 31mm and 41mm respectively. Installing one in place of the other risks a poor fit, as festoon holders are sized to match a specific bulb length.
• The 904 bulb and the DE3425 are not interchangeable. They use entirely different mounting systems, with the 904 relying on a wedge base and the DE3425 relying on spring-tension end contacts. A housing designed for one format will not accept the other.
• For the 2011-2012 model years, the 904 bulb is designated for the front map light position. The 2012 entry carries no positional qualifier, while the 2011 entry explicitly labels the application as front, indicating a distinction in how the position was documented across those years.