Toyota Corolla Headlight Bulb Size

Additional Notes

• The 9005 bulb is the most widely used high beam type across the Toyota Corolla's specification history, covering model years 2001-2016 without interruption, as well as 1993-1997. It is a single-filament halogen unit rated at 12V and 65W, fitted with a P20d base, and conforms to the ANSI standard applicable in the US and Canada.
• The 9006 bulb holds an equivalent position for the low beam circuit, appearing across model years 2001-2013 and 1993-1997. It is also a single-filament halogen type but operates at a lower wattage of 55W with a P22d base, making it electrically and physically distinct from the 9005 despite their similar appearance.
• The 9003 bulb served both the high beam and low beam functions simultaneously in the Toyota Corolla for model years 1998-1999 and part of 2000, as it is a dual-filament halogen unit. Its P43t base and 60W/55W rating distinguish it from the single-filament 9005 and 9006 types, and it is not interchangeable with either of those bulbs.
• The 9004 bulb, a dual-filament halogen type with a P29t base rated at 65W/45W, was used for both high and low beam positions in the 1992 Corolla and in 1986-1987 models equipped with halogen capsule headlamps. Its base type differs from both the 9003 and the single-filament variants, meaning cross-substitution is not supported by fitment specifications.
• For the 2000 model year Toyota Corolla, a production date split applies: units built before May 2000 used the 9003 dual-filament bulb for both beams, while those produced from May 2000 onward used separate 9005 and 9006 bulbs for high and low beams respectively. Confirming the build date is necessary before selecting a replacement.
• The H6054 is a 5x7-inch rectangular sealed beam unit used across both high and low beam positions in the Corolla from 1981-1985, and in 1986-1987 models fitted with sealed beam headlamps rather than halogen capsule assemblies. As a sealed beam unit, the entire housing is replaced rather than an internal bulb, which represents a fundamentally different service procedure compared to capsule-type halogen systems.
• The H6024, a 7-inch round sealed beam unit, was the specified type for both beam positions across the Corolla's earliest documented years in these specifications, covering 1968-1978. Like all sealed beam types listed, it operates at 12V and requires full unit replacement rather than bulb replacement.
• The 1980 Toyota Corolla carries two distinct fitments depending on headlamp count: two-headlamp configurations used the H6054 rectangular sealed beam, while four-headlamp configurations used the H5001 for high beams and the H5006 for low beams. The H5001 is a 4-inch square sealed beam unit and the H5006 is a 5.75-inch round sealed beam unit, neither of which is interchangeable with the other or with the H6054.