Lexus IS350 Turn Signal Bulb Size

The Lexus IS350 front turn signal requires 7440NA, 7444NA, or 7443NA bulb sizes, while rear turn signal replacement uses 7440NA or 7440 bulb sizes. The chart covers 2006 through 2024 model years with corresponding bulb size specifications.

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
2022-20247440NA
20217444NA
20197444NA
2016-20187443NA
2006-20097440NA

Rear Turn Signal

YearsBulb Size
2022-20247440NA
20217440
20197440
2016-20187440NA
2006-20097440

Bulb Specifications

Description Bulb Size
ANSI standard (US & Canada). Single-filament wedge bulb (T20), natural amber glass. 12V, 21W.7440NA
ANSI standard (US & Canada). Dual-filament wedge bulb (T20), natural amber glass. 12V, 21W/5W.7444NA
ANSI standard (US & Canada). Dual-filament wedge bulb (T20), natural amber glass. 12V, 21W/5W.7443NA
ANSI standard (US & Canada). Single-filament wedge bulb (T20). 12V, 21W.7440

Other Locations

Additional Notes