Ford E-350 Super Duty Headlight Bulb Size

Additional Notes

• The Ford E-350 Super Duty headlight specifications cover three distinct bulb types across the full model range: the 9008, the 9007, and the H6054 sealed beam unit. The 9008 and 9007 are both dual-filament halogen bulbs rated at 12V with a 65W high beam filament and a 55W low beam filament, meaning a single bulb serves both functions in halogen capsule headlamp configurations.
• The 9008 uses a P26t base, while the 9007 uses a PX29t base. Although both bulbs share identical wattage ratings and voltage, their bases are physically different, making them non-interchangeable despite their similar electrical characteristics.
• The H6054 is a 5x7-inch rectangular sealed beam unit rather than a replaceable capsule bulb. When this unit fails, the entire assembly is replaced rather than an individual bulb, which is a fundamentally different service procedure compared to halogen capsule headlamp configurations.
• For the Ford E-350 Super Duty, the 9008 bulb applies to both high beam and low beam positions on halogen capsule headlamp-equipped vehicles from 2008-2023, with the 2021-2023 model years specifying only the 9008 with no sealed beam alternative listed.
• Vehicles from 1999-2007 with halogen capsule headlamps use the 9007 rather than the 9008 for both high and low beam positions. The transition from 9007 to 9008 in halogen capsule configurations occurred between the 2007 and 2008 model years.
• From 1999-2019, the Ford E-350 Super Duty with sealed beam headlamps uses the H6054 unit for both high and low beam functions, as sealed beam units inherently combine both filaments within a single fixed-lens assembly.
• The dual-headlamp configuration on halogen capsule variants requires attention to base type when sourcing a replacement, since the P26t base of the 9008 and the PX29t base of the 9007 are not physically compatible with each other's housing, even though both are ANSI-standardized for the US and Canadian markets.
• For model years 2008-2019, the Ford E-350 Super Duty was available with either halogen capsule or sealed beam headlamps, and the correct bulb type is determined strictly by which headlamp system is installed on the specific vehicle.