Volvo WG Headlight Bulb Size

Volvo WG headlight bulbs utilize 9004 and H6024 sizes for both high beam and low beam applications, with these bulb sizes remaining consistent across the model line. The replacement chart covers vehicle production spanning 1996 to 1998, detailing bulb size specifications for the designated period.

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
1998	9004	HB1	Check Price
1996-1997	9004 (With Halogen Capsule Headlamps)	HB1	Check Price
1996-1997	H6024 (With Sealed Beam Headlamps)	H6024	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
1998	9004	HB1	Check Price
1996-1997	9004 (With Halogen Capsule Headlamps)	HB1	Check Price
1996-1997	H6024 (With Sealed Beam Headlamps)	H6024	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). 7-inch round sealed beam unit. Not a replaceable bulb — the entire unit is replaced. 12V.	H6024	Check Price

Other Locations

Additional Notes

The 9004 is a dual-filament halogen bulb, meaning a single bulb contains two separate filaments to serve both high beam and low beam functions. This is why the 9004 appears under both the High Beam and Low Beam Headlight categories for the Volvo WG.
The 9004 operates at 12 volts and draws 65 watts on the high beam filament and 45 watts on the low beam filament. It uses a P29t base and meets ANSI standards applicable in the United States and Canada.
The H6024 is a 7-inch round sealed beam unit rather than a replaceable bulb. When this unit fails, the entire assembly is replaced rather than an individual bulb inside it. It also operates at 12 volts and meets the same ANSI standards.
For the 1996-1997 Volvo WG, the correct bulb type depends on which headlamp system the vehicle was built with. Units equipped with halogen capsule headlamps take the 9004, while those equipped with sealed beam headlamps take the H6024. These two types are not interchangeable.
The 1998 Volvo WG does not carry the halogen capsule or sealed beam distinction found in the 1996-1997 entries, with only the 9004 listed for both high and low beam positions that year.
The H6024 and 9004 serve the same headlamp positions across the specification but represent fundamentally different technologies. One is a component-level halogen bulb and the other is a self-contained optical unit, making cross-substitution between them impossible without modifying the headlamp housing.