Buick LaCrosse Side Marker Bulb Size

The Buick LaCrosse side marker requires a 194 bulb size for proper installation and function within the lighting assembly. Data for the specified component covers the range from 2005 to 2009.

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

Front Side Marker

YearsBulb Size
2014-20167443 (With Halogen Capsule Headlamps)
2010-20133757NA
2005-2009194

Rear Side Marker

YearsBulb Size
2005-2009194

Bulb Specifications

Description Bulb Size
ANSI standard (US & Canada). Dual-filament wedge bulb (T20). 12V, 21W/5W.7443
ANSI standard (US & Canada). Dual-filament wedge bulb (T25), natural amber glass. 12V.3757NA
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 3.78W.194

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