Buick Enclave front turn signal uses 7444NA, 7443NA, or 12272NA bulb size, while rear turn signal requires 7443 bulb size. The chart covers 2008 to 2021 replacement specifications for these components.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The front turn signal on the Buick Enclave uses three distinct bulb types across its model years: the 12272NA for 2008-2012, the 7443NA for 2013-2018, and the 7444NA for 2019-2021.
The 7443NA and 7444NA are both ANSI-standardized dual-filament T20 wedge bulbs rated at 12V with a 21W/5W filament configuration, and both feature natural amber glass rather than a clear envelope with an amber coating.
The natural amber glass construction of the NA-suffix bulbs produces color through the glass itself, which is a different method than using a clear bulb behind a colored lens or applying an amber coating to the bulb surface.
The 12272NA is designated by an OEM part number rather than an ANSI standard number, and its specification lists only a 12V rating without a published wattage figure.
The rear turn signal on the Buick Enclave uses the 7443 across all listed model years from 2008-2018, making it the sole bulb type for that position throughout the entire specified range.
The 7443 and 7443NA share the same T20 dual-filament wedge format and 12V/21W/5W electrical rating, but the 7443 lacks the natural amber glass of its NA counterpart, a distinction relevant to assemblies without a pre-tinted lens.
Because the 7443NA and 7444NA share identical electrical ratings and the same T20 wedge base, the change in front turn signal designation between the 2018 and 2019 model years does not reflect a difference in wattage or base type.