Isuzu Amigo Headlight Bulb Size

The Isuzu Amigo headlight bulb specifications include high beam and low beam configurations using 9003, 9004, or H6054 bulb sizes depending on the model variant. The replacement chart covers 1989 to 2000 production years with corresponding bulb size data for each generation.

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
2000	9003	H4	Check Price
1998-1999	9004	HB1	Check Price
1989-1994	H6054	H6054	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
2000	9003	H4	Check Price
1998-1999	9004	HB1	Check Price
1989-1994	H6054	H6054	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Dual-filament halogen bulb with P43t base. 12V, 60W/55W.	9003	Check Price
ANSI standard (US & Canada). Dual-filament halogen bulb with P29t base. 12V, 65W/45W.	9004	Check Price
ANSI standard (US & Canada). 5x7-inch rectangular sealed beam unit. Not a replaceable bulb — the entire unit is replaced. 12V.	H6054	Check Price

Other Locations

Additional Notes

The Isuzu Amigo uses three distinct headlight bulb types across its model years: the H6054 sealed beam unit, the 9004 dual-filament halogen bulb, and the 9003 dual-filament halogen bulb.
The H6054 is a 5x7-inch rectangular sealed beam unit, meaning the lens, reflector, and filament are fused into a single assembly. When the filament fails, the entire unit requires replacement rather than just an internal bulb.
The Isuzu Amigo used the H6054 sealed beam unit for both high and low beam functions from 1989-1994, making it the longest-running headlight type across the model's history in these specifications.
The 9004 bulb operates at 12V with a 65W high beam filament and a 45W low beam filament, using a P29t base. It served both high and low beam positions on the 1998-1999 Amigo.
The 9003 bulb operates at 12V with a 60W high beam filament and a 55W low beam filament, using a P43t base. It was fitted to the 2000 model year for both beam positions.
The 9003 and 9004 are not interchangeable despite both being dual-filament halogen bulbs. Their base types differ, with the 9003 using a P43t base and the 9004 using a P29t base, making each physically incompatible with the other's socket.
All three bulb types carry ANSI standard designations applicable to the US and Canadian markets, and all operate on a 12V electrical system.
The transition from the H6054 sealed beam unit to the 9004 replaceable halogen bulb between the 1994 and 1998 model years represents a shift from a fixed-assembly headlight to a housing-based system where only the internal bulb is replaced.