Hyundai Tucson Brake Bulb Size

The Hyundai Tucson brake light utilizes 1157, P21/5W, and 2357 bulb sizes for the rear lighting system. Data for the specified vehicle components covers the range from 2005 through 2024.

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

Brake

If US Type and EU Type show the same value, a direct cross-reference for this bulb is not available or the data is insufficient.

Years	US Type	EU Type	Shop
2021-2024	1157	P21/5W	Check Price
2016-2020	2357 (With Halogen Capsule Headlamps)	2357	Check Price
2014-2015	2357 (Without LED Tail Lights)	2357	Check Price
2010-2013	2357	2357	Check Price
2005-2009	1157	P21/5W	Check Price

Center High Mount Stop Light

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

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Dual-filament bulb with BAY15d bayonet base. 12V, 21W/5W.	1157	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). Dual-filament bulb with BAY15d bayonet base. Brighter variant of 1157. 12V, 26.9W/8W.	2357	Check Price
ECE standard (Europe & worldwide). Single-filament amber bulb with BAU15s bayonet base. 12V, 21W.	PY21W	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 1157 and 2357 are the two bulb types specified for the Hyundai Tucson's brake lights across its model years. Both follow the ANSI standard used in the US and Canada, operate at 12V, and share the BAY15d bayonet base, making them dual-filament bulbs with a physically similar form factor.
Despite sharing the same BAY15d base, the 1157 and 2357 are not identical in output. The 2357 draws 26.9W on its high filament compared to the 1157's 21W, making it the higher-output variant. The low filaments also differ, at 8W for the 2357 versus 5W for the 1157.
The Tucson uses the 2357 bulb for model years 2010-2023 and the 1157 for 2005-2009, then returns to the 1157 for 2021-2024, reflecting a shift back to the lower-output ANSI bulb in the most recent generation.
For the 2016-2020 model years, the 2357 fitment is conditional on the presence of halogen capsule headlamps, indicating that trim levels or packages with different lighting configurations may use a different brake light setup not covered under this specification.
The 2014-2015 model years carry a "Without LED Tail Lights" condition for the 2357 fitment, meaning vehicles equipped with LED tail lights on those years fall outside this bulb specification.
The Center High Mount Stop Light specification diverges between the 2023 and 2024 Tucson. The 2023 uses a P21W, which has a BA15s single-contact bayonet base, while the 2024 uses a PY21W, which has a BAU15s offset single-contact bayonet base. These two bases are not interchangeable despite the bulbs sharing the same 12V, 21W rating.
The PY21W specified for the 2024 Tucson's Center High Mount Stop Light is an amber-tinted bulb under the ECE standard, whereas the P21W used in the 2023 model produces a clear or white light output. Substituting one for the other would affect both the base fit and the emitted color.
The ECE-standard bulbs (PY21W and P21W) specified for the Center High Mount Stop Light are governed by regulations used in Europe and internationally, which is a separate standardization framework from the ANSI system governing the 1157 and 2357 bulbs used in the main brake light positions.