Prevost Le Mirage Headlight Bulb Size

The Prevost Le Mirage high beam headlight bulb size includes 9004, H4656, and H4651 options, while the low beam headlight bulb size uses 9004 or H4656 specifications. A replacement chart covering 1985 to 2002 contains vehicle production years and 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
2002	9004	HB1	Check Price
1991-2000	9004	HB1	Check Price
1985-1990	H4651	H4651	Check Price
1985-1990	H4656	H4656	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
2002	9004	HB1	Check Price
1991-2000	9004	HB1	Check Price
1985-1990	H4656	H4656	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Dual-filament halogen bulb with P29t base. 12V, 65W/45W.	9004	Check Price
ANSI standard (US & Canada). 4x6-inch rectangular sealed beam unit. Not a replaceable bulb — the entire unit is replaced. 12V.	H4651	Check Price
ANSI standard (US & Canada). 4x6-inch rectangular sealed beam unit. Not a replaceable bulb — the entire unit is replaced. 12V.	H4656	Check Price

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Additional Notes

The 9004 bulb is a dual-filament halogen type rated at 12V with a wattage split of 65W for high beam and 45W for low beam. It uses a P29t base and meets ANSI standards for the US and Canadian markets. Because it carries both filaments in a single housing, it serves both high and low beam functions from one unit.
The Prevost Le Mirage (1991-2002) uses the 9004 bulb for both high beam and low beam headlights. The year 2001 is not present in the data, so the 9004 fitment applies to the years listed rather than the full span without interruption.
The H4656 and H4651 are 4x6-inch rectangular sealed beam units operating at 12V. Unlike the 9004, these are not bulbs with replaceable filaments. When a sealed beam fails, the entire unit requires replacement rather than just an internal component.
On the Le Mirage for model years 1985-1990, the high beam position calls for two different sealed beam sizes simultaneously: the H4656 and the H4651. This dual-unit arrangement is distinct from the single-bulb setup used in later model years.
The low beam headlight on the Le Mirage for 1985-1990 uses only the H4656 sealed beam unit, without the H4651 that accompanies it in the high beam position. This means the H4651 is exclusive to the high beam circuit during those years.
The H4656 and H4651 sealed beam units share the same 4x6-inch rectangular form factor and both conform to ANSI standards. Despite their physical similarity, they are not interchangeable, as each is specified for a distinct beam position within the headlight assembly.
The transition from sealed beam units to the 9004 halogen bulb occurred between the 1990 and 1991 model years on the Le Mirage. This shift also changed the service requirement, moving from full-unit sealed beam replacement to single-bulb halogen replacement.