Toyota Prius Headlight Bulb Size

Toyota Prius high beam and low beam headlight bulbs utilize 9005, 9003, D4R, and H11 bulb sizes depending on generation and configuration. The replacement chart covers 2001 through 2015 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.

High Beam Headlight

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
2010-2015	9005	HB3	Check Price
2006-2009	D4R (With HID Headlamps)	D4R	Check Price
2006-2009	9003 (With Halogen Capsule Headlamps)	H4	Check Price
2004-2005	D2R (With HID Headlamps)	D2R	Check Price
2004-2005	9003 (With Halogen Capsule Headlamps)	H4	Check Price
2001-2003	9003	H4	Check Price

Low Beam Headlight

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
2010-2015	H11 (With Halogen Capsule Headlamps)	H11	Check Price
2006-2009	D4R (With HID Headlamps)	D4R	Check Price
2006-2009	9003 (With Halogen Capsule Headlamps)	H4	Check Price
2004-2005	D2R (With HID Headlamps)	D2R	Check Price
2004-2005	9003 (With Halogen Capsule Headlamps)	H4	Check Price
2001-2003	9003	H4	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Single-filament halogen bulb with P20d base. 12V, 65W.	9005	Check Price
ECE standard (Europe & worldwide). Mercury-free HID (xenon) discharge bulb with P32d-6 base, for reflector-type housings. 42V, 35W.	D4R	Check Price
ANSI standard (US & Canada). Dual-filament halogen bulb with P43t base. 12V, 60W/55W.	9003	Check Price
ECE standard (Europe & worldwide). HID (xenon) discharge bulb with P32d-3 base, for reflector-type housings. Requires external ignitor. 85V, 35W.	D2R	Check Price
ECE standard (Europe & worldwide). Single-filament halogen bulb with PGJ19-2 base. Also approved in the US. 12V, 55W.	H11	Check Price

Other Locations

Additional Notes

The 9003 bulb is a dual-filament halogen type rated at 12V with a 60W high beam filament and a 55W low beam filament, using a P43t base. In the Toyota Prius, this single bulb type serves both the high beam and low beam functions within the same housing for model years 2001-2008 and the halogen-equipped 2009 model.
The 9005 is a single-filament halogen bulb rated at 12V and 65W with a P20d base. It appears exclusively in the high beam position on the 2010-2015 Prius, which pairs it with a separate H11 bulb for the low beam, meaning the two beam functions are handled by distinct bulbs rather than a single dual-filament unit.
The H11 is a single-filament halogen bulb rated at 12V and 55W with a PGJ19-2 base. It is governed by the ECE standard but also carries US approval. On halogen-equipped 2010-2015 Prius models, it fills the dedicated low beam position.
The D4R is a mercury-free HID xenon discharge bulb operating at 42V and 35W with a P32d-6 base, designed specifically for reflector-type housings. It is the HID option listed for both the high beam and low beam positions on 2006-2009 Prius models equipped with HID headlamps.
The D2R is an earlier HID xenon discharge bulb rated at 85V and 35W with a P32d-3 base, also intended for reflector-type housings. Unlike the D4R, it requires an external ignitor and contains mercury. It is listed for HID-equipped 2004-2005 Prius models in both beam positions.
The D2R and D4R share the same 35W power rating and are both designed for reflector housings, but they are not interchangeable. Their base types differ, P32d-3 versus P32d-6, and the D2R operates at a significantly higher voltage of 85V compared to the D4R's 42V, reflecting different ballast and ignition requirements.
For the Toyota Prius in model years 2006-2009, two distinct headlamp system configurations are documented: one using the 9003 halogen bulb and one using HID bulbs. The applicable bulb type is determined by which headlamp system the specific vehicle was built with, and the two configurations are not interchangeable.
The 9003 and 9005 bulbs both follow the ANSI standard applicable in the US and Canada, yet they are not interchangeable. The 9003 uses a P43t base and carries dual filaments, while the 9005 uses a P20d base with a single filament, and each is keyed to prevent incorrect installation.