Hyundai Kona Electric Turn Signal Bulb Size

Hyundai Kona Electric front turn signal bulbs use PY21W, 2357NA, or 1156NA sizes, while rear turn signal bulbs use PY21W or P21W sizes. The chart covers bulb size specifications across 2019 to 2024 production years for replacement purposes.

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
2021-2024	7507	PY21W	Check Price
2020	2357NA	P21/5W	Check Price
2019	1156NA	PY21W	Check Price

Rear Turn Signal

Years	US Type	EU Type	Shop
2023-2024	7507	PY21W	Check Price
2019-2022	1156	P21W	Check Price

Bulb Specifications

Description	Type	Shop
ECE standard (Europe & worldwide). Single-filament amber bulb with BAU15s bayonet base. 12V, 21W.	PY21W	Check Price
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base, natural amber glass. 12V, 26.9W/8W.	2357NA	Check Price
ECE standard (Europe & worldwide). Dual-filament signalling bulb with BAY15d bayonet base. 12V, 21W/5W.	P21/5W	Check Price
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base, natural amber glass. 12V, 21W.	1156NA	Check Price
ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W.	P21W	Check Price
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W.	1156	Check Price

Other Locations

Additional Notes

The Hyundai Kona Electric front turn signal uses the PY21W bulb for the 2021-2024 model years. This is an ECE-standard single-filament amber bulb rated at 12V and 21W, fitted with a BAU15s offset bayonet base.
The BAU15s base on the PY21W is offset, meaning the two pins are positioned at unequal heights around the base. This distinguishes it from the BA15s base used on other bulbs in these specifications, and the two base types are not interchangeable.
The rear turn signal of the Kona Electric uses the P21W across the 2019-2021 model years, then transitions to the PY21W for 2023-2024. The P21W is also an ECE-standard single-filament 12V, 21W bulb, but it carries a BA15s base and a clear glass envelope rather than an amber one.
Although the PY21W and P21W share the same wattage and voltage rating, their base types differ. The PY21W uses a BAU15s base while the P21W uses a BA15s base, making them physically non-interchangeable despite their similar electrical specifications.
The 2020 Kona Electric front turn signal uses the 2357NA, an ANSI-standard dual-filament bulb with a BAY15d bayonet base rated at 12V with a 26.9W high filament and an 8W low filament. The natural amber glass coating produces the amber signal color without a separate amber lens.
The 2019 Kona Electric front turn signal uses the 1156NA, an ANSI-standard single-filament bulb with a BA15s base rated at 12V and 21W. Like the 2357NA, it uses natural amber glass to produce its color.
The 2357NA used in the 2020 front position carries a BAY15d base, which features two pins at different heights on opposite sides of the base. This base type is distinct from both the BA15s and BAU15s bases found elsewhere in these specifications and is not interchangeable with either.
The front turn signal position of the Kona Electric reflects three different bulb standards across the 2019-2024 range: the ANSI 1156NA in 2019, the ANSI 2357NA in 2020, and the ECE PY21W in 2021-2024. Each of these bulbs carries a different base type, meaning none of them are direct drop-in replacements for one another.