Buick Cascada Turn Signal Bulb Size

Buick Cascada front turn signal bulbs use 7443NA size while rear turn signal bulbs use 12496 or PY21W size. The replacement bulb size chart covers 2016 to 2019 model years.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Front Turn Signal

YearsBulb Size
2016-20197443NA

Rear Turn Signal

YearsBulb Size
201912496
2018PY21W
2016-201712496

Bulb Specifications

Description Bulb Size
ANSI standard (US & Canada). Dual-filament wedge bulb (T20), natural amber glass. 12V, 21W/5W.7443NA
Philips/Osram part number. Halogen bulb, specialty application. 12V.12496
ECE standard (Europe & worldwide). Single-filament amber bulb with BAU15s bayonet base. 12V, 21W.PY21W

Other Locations

Additional Notes