Prevost XL2 Headlight Bulb Size

The Prevost XL2 high beam headlight uses H9 or 9004 bulb size, while low beam headlight applications accommodate H9, D2S, or 9004 bulb sizes. The replacement chart covers 2000 through 2013 production 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
2011-2013	H9	H9	Check Price
2005-2008	H9	H9	Check Price
2000-2004	9004	HB1	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
2011-2013	D2S (With HID Headlamps)	D2S	Check Price
2011-2013	H9 (With Halogen Capsule Headlamps)	H9	Check Price
2005-2008	D2S (With HID Headlamps)	D2S	Check Price
2005-2008	H9 (With Halogen Capsule Headlamps)	H9	Check Price
2000-2004	9004	HB1	Check Price

Bulb Specifications

Description	Type	Shop
ECE standard (Europe & worldwide). Single-filament halogen bulb with PGJ19-5 base. Also approved in the US. 12V, 65W.	H9	Check Price
ANSI standard (US & Canada). Dual-filament halogen bulb with P29t base. 12V, 65W/45W.	9004	Check Price
ECE standard (Europe & worldwide). HID (xenon) discharge bulb with P32d-2 base, for projector-type housings. Requires external ignitor. 85V, 35W.	D2S	Check Price

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Additional Notes

The H9 bulb is an ECE-standard single-filament halogen type rated at 12V and 65W, fitted with a PGJ19-5 base. It holds approval for use in both European and US markets.
The 9004 bulb is an ANSI-standard dual-filament halogen type rated at 12V with a high beam output of 65W and a low beam output of 45W, using a P29t base. Its dual-filament design allows a single bulb to serve both beam functions within one housing.
The D2S is a high-intensity discharge xenon bulb rated at 85V and 35W, fitted with a P32d-2 base. It is designed exclusively for projector-type housings and requires an external ignitor to initiate and sustain the arc discharge.
On the Prevost XL2, model years 2000-2004 used the 9004 bulb for both high beam and low beam headlights, with a single bulb type covering both functions due to its dual-filament construction.
Starting with the 2005 model year, the XL2 transitioned to H9 bulbs for the high beam across all subsequent years covered in the specifications (2005-2013, excluding 2009-2010).
For low beam headlights in model years 2005-2013 (excluding 2009-2010), the XL2 accommodated two distinct bulb types depending on headlamp system: H9 for halogen capsule headlamps and D2S for HID headlamps. These two systems are not interchangeable, as the D2S requires dedicated projector housing and an ignitor that halogen systems do not use.
The H9 and 9004 bulbs share the same 65W high beam wattage rating but use different base types (PGJ19-5 versus P29t) and conform to different standards (ECE versus ANSI), making them physically incompatible with each other's sockets.
The D2S operates at 85V, which is substantially higher than the 12V supply voltage of the halogen bulbs in the same specifications. This voltage difference reflects the ignitor-driven arc discharge technology and means D2S units cannot be substituted into halogen headlamp circuits without dedicated ballast and ignitor hardware.