Lexus NX250 Turn Signal Bulb Size

The Lexus NX250 front turn signal uses a 7440NA bulb size for replacement. The chart covers 2022 to 2024 production years with corresponding bulb size data.

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

Front Turn Signal

Years	US Type	EU Type	Shop
2022-2024	7440NA	WY21W	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Single-filament wedge bulb (T20), natural amber glass. 12V, 21W.	7440NA	Check Price

Other Locations

Additional Notes

The 7440NA is the specified front turn signal bulb for the Lexus NX250 across the 2022-2024 model years.
The 7440NA follows the ANSI standard, making it the designated specification for the United States and Canadian markets.
This bulb uses a single-filament wedge base, classified under the T20 form factor, which is a common wedge-type base used in automotive signal lighting.
The natural amber glass of the 7440NA produces its amber output through the glass itself rather than through a clear bulb paired with an amber lens, a distinction relevant to fitment in housings designed for this configuration.
The 7440NA operates at 12 volts and draws 21 watts, which is the standard power rating for single-filament automotive turn signal bulbs in this class.
Because the 7440NA carries a specific amber glass designation, substituting it with a clear 7440 variant would alter the color output at the lens and may not meet signal lighting regulations in the applicable markets.