The Lexus RC200t front turn signal requires 7443NA or 7444NA bulb size, while the rear turn signal uses 7440NA bulb size. The replacement chart covers 2016 to 2017 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.
The Lexus RC200t front turn signal uses different bulb sizes across its two model years, with the 2016 requiring a 7444NA and the 2017 requiring a 7443NA.
The 7443NA and 7444NA are both dual-filament T20 wedge bulbs rated at 12V with a 21W/5W power draw, meaning the higher wattage filament handles the turn signal function while the lower wattage filament serves a secondary role.
Although the 7443NA and 7444NA share the same T20 wedge base, voltage rating, wattage, and natural amber glass coating, they are specified as distinct part numbers and are not listed as interchangeable for the RC200t front turn signal position.
The rear turn signal on the Lexus RC200t uses the 7440NA for both the 2016 and 2017 model years, making it the only position with consistent fitment across the two years covered.
The 7440NA is a single-filament T20 wedge bulb rated at 12V and 21W, distinguishing it from the dual-filament units used at the front.
All three bulb types in these specifications carry the NA suffix, which denotes natural amber glass rather than a clear envelope with an amber-coated base, a construction method that produces the amber output required for turn signal use.
All bulbs listed conform to ANSI standards applicable in the United States and Canada, placing them within the same regulatory framework for automotive lighting in those markets.
The T20 wedge base is common to all three bulb types across both positions and both model years, though the single-filament and dual-filament variants within that base type are not interchangeable due to differences in internal construction and wattage configuration.