Hyundai Tucson Headlight Bulb Size

Additional Notes

• The 9003 bulb is the most frequently specified type across the Hyundai Tucson headlight data, covering both high and low beam positions from 2005-2013. It is a dual-filament halogen bulb rated at 12V with a 60W/55W output and a P43t base, meaning a single bulb serves both beam functions in a given housing.
• The H7 bulb appears across multiple years and both beam positions in the Tucson specifications, making it the second most recurring type in this data set. It operates at 12V and 55W with a PX26d base and carries ECE certification, though it is also approved for use in the United States and Japan.
• The 9003 and H7 bulbs are not interchangeable despite both being halogen types. The 9003 uses a P43t base and carries two filaments, while the H7 uses a PX26d base and carries only one filament. Installing the wrong type would result in a physical fitment failure or incorrect beam function.
• The 9012 bulb shares the same 12V, 55W rating as the H7 but uses a PX22d base and follows the ANSI standard rather than the ECE standard. It is specified for the Hyundai Tucson in both high and low beam positions for the 2014-2015 model years.
• The 9012 and 9005 are both ANSI-standard single-filament halogen bulbs, but they use different bases. The 9012 has a PX22d base rated at 55W, while the 9005 uses a P20d base rated at 65W. These two types are not interchangeable despite their similar appearance and shared standard.
• For the 2016-2018 Tucson, the low beam position lists two distinct bulb types depending on the headlamp system installed: H7 for halogen capsule headlamps and D3S for HID headlamps. Selecting the correct replacement requires confirming which system is present in the specific vehicle.
• The D3S is an HID (xenon) discharge bulb rated at 42V and 35W, operating on a fundamentally different technology from the halogen types listed elsewhere in the specifications. It includes an integral ignitor and is designed exclusively for projector-type housings, making it incompatible with standard reflector headlamp assemblies.
• The 2015 Tucson low beam position carries a mid-year specification change, with the 9012 bulb applying before April 10, 2015, and the H7 applying from that date onward. These two bulbs use different bases and are not interchangeable, so the production date of the specific vehicle determines the correct fitment.
• For the 2019-2020 Tucson, both high and low beam specifications include the qualifier "With Halogen Capsule Headlamps," indicating that these years also offered non-halogen headlamp configurations for which the listed bulb sizes do not apply.
• The 2018 Tucson high beam position specifies the H7, while the low beam position lists either H7 or D3S depending on headlamp type. In the halogen configuration, both beams use the same H7 bulb, but the two positions remain separate housings and are not served by a single dual-filament bulb as in the earlier 9003-equipped years.