Suzuki Swift high beam and low beam headlight bulbs utilize 9007, 9003, or 9004 bulb sizes depending on model generation. The replacement chart covers 1989 through 2001 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.
The Suzuki Swift uses three distinct bulb types across its headlight history: the 9004, 9003, and 9007, all of which are ANSI-standard dual-filament halogen bulbs rated at 12 volts and designed for use in North American markets.
All three bulb types serve both the high beam and low beam functions within a single unit, which is characteristic of dual-filament halogen technology where one filament handles each beam mode.
The 9004 bulb, fitted to the Suzuki Swift from 1989-1994, operates at 65W on the high beam filament and 45W on the low beam filament, and uses a P29t base.
The 9003 bulb, used from 1995-1997, carries a P43t base and operates at 60W high beam and 55W low beam, giving it a higher low beam wattage than the 9004 it replaced.
The 9007 bulb, fitted from 1998-2001, uses a PX29t base and operates at 65W high beam and 55W low beam, sharing its wattage output with the 9003 on the low beam filament while matching the 9004 on the high beam.
Although the 9004 and 9007 share the same high beam wattage of 65W, their base types differ, with the 9004 using a P29t base and the 9007 using a PX29t base, making them physically non-interchangeable despite the similar designation numbering.
The 9003 bulb is also internationally known as the H4, though the specifications reference it under its ANSI designation, which is standard for the US and Canadian markets where the Swift was sold.
Each of the three bulb types represents a separate base configuration, meaning no cross-compatibility exists between the 9004, 9003, and 9007 without a socket adapter, as each base is mechanically distinct.