Buick Enclave Turn Signal Bulb Size

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.

Front Turn Signal

If US Type and EU Type show the same value, a direct cross-reference for this bulb is not available or the data is insufficient.

Years	US Type	EU Type	Shop
2019-2021	7444NA	WY21/5W	Check Price
2013-2018	7443NA	WY21/5W	Check Price
2008-2012	12272NA	12272NA	Check Price

Rear Turn Signal

Years	US Type	EU Type	Shop
2008-2018	7443	W21/5W	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Dual-filament wedge bulb (T20), natural amber glass. 12V, 21W/5W.	7444NA	Check Price
ANSI standard (US & Canada). Dual-filament wedge bulb (T20), natural amber glass. 12V, 21W/5W.	7443NA	Check Price
OEM part number. Natural amber glass variant. 12V.	12272NA	Check Price
ANSI standard (US & Canada). Dual-filament wedge bulb (T20). 12V, 21W/5W.	7443	Check Price

Other Locations

Additional Notes

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.