Scion xB Headlight Bulb Size

Scion xB headlight bulbs utilize 9005 and 9003 sizes for high beam applications, while low beam configurations require H11 or 9003 bulb sizes. The replacement chart covers vehicle production spanning 2004 through 2015, detailing bulb size specifications across the model's generation.

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

High Beam Headlight

Years	US Type	EU Type	Shop
2008-2015	9005	HB3	Check Price
2004-2006	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
2008-2015	H11	H11	Check Price
2004-2006	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
ANSI standard (US & Canada). Dual-filament halogen bulb with P43t base. 12V, 60W/55W.	9003	Check Price
ECE standard (Europe & worldwide). Single-filament halogen bulb with PGJ19-2 base. Also approved in the US. 12V, 55W.	H11	Check Price

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Additional Notes

The Scion xB uses three distinct halogen bulb types across its production years: the 9005, 9003, and H11, each governed by different international standards and carrying different electrical and physical characteristics.
The 9003 is a dual-filament halogen bulb operating at 12V with a 60W/55W rating and a P43t base, classified under the ANSI standard applicable in the US and Canada. Its dual-filament design means a single 9003 bulb serves both high and low beam functions simultaneously.
The Scion xB (2004-2006) used the 9003 for both high beam and low beam positions, reflecting the dual-filament nature of that bulb type, which consolidates both functions into one unit per headlight assembly.
The 9005 is a single-filament halogen bulb rated at 12V and 65W with a P20d base, also under the ANSI standard. Because it carries only one filament, it is dedicated exclusively to the high beam function.
The H11 is a single-filament halogen bulb rated at 12V and 55W, fitted with a PGJ19-2 base. It follows the ECE standard used in Europe and internationally, though it also holds approval for use in the US market.
The Scion xB (2008-2015) transitioned to a split-bulb headlight system, with the 9005 handling the high beam and the H11 handling the low beam as two separate, non-interchangeable components per headlight assembly.
The P20d base of the 9005 and the PGJ19-2 base of the H11 are physically incompatible with each other and with the P43t base of the 9003, meaning bulbs from different base families cannot be substituted across positions regardless of voltage or wattage similarities.
The 9005 at 65W draws more power and produces greater output than the H11 at 55W, a difference consistent with the higher luminance demands typically associated with high beam operation compared to low beam.