Nissan Kicks Brake Bulb Size

Nissan Kicks brake bulb replacement uses 7440NA and 7443 bulb sizes. The chart covers 2018 to 2023 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.

Bulb Size by Year Range

Years	US Type	EU Type	Shop
2023	7440NA	WY21W	Check Price
2018-2020	7443	W21/5W	Check Price

Bulb Specifications

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

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Additional Notes

The 7443 bulb is a dual-filament T20 wedge type rated at 12V with a 21W high filament and a 5W low filament, conforming to ANSI standards for the US and Canadian markets. The two filaments allow a single bulb to serve both brake and running light functions within one housing.
The 7440NA is a single-filament T20 wedge bulb rated at 12V and 21W, also built to ANSI standards for the US and Canadian markets. Its natural amber glass filters the output to produce an amber-tinted light rather than the clear output of a standard 7440.
The Nissan Kicks used the 7443 as the brake bulb size across the 2018-2020 model years, while the 2023 model year specifies the 7440NA instead.
Although the 7440NA and 7443 share the same T20 wedge base and physically fit the same socket, they are not interchangeable for brake light duty. The 7443 carries two filaments while the 7440NA carries only one, meaning substituting one for the other would result in either a non-functional running light circuit or an incorrect light color.
The natural amber glass of the 7440NA is a fixed property of the bulb envelope itself, so the amber tint is present regardless of the lens color of the fixture it occupies.
The wattage difference between the two filaments of the 7443, 21W for the brake function and 5W for the running light function, is what allows the same bulb position to produce a visibly brighter output when the brake pedal is pressed compared to normal running light operation.