Dodge Ram 1500 Headlight Bulb Size

Additional Notes

• The 9008 bulb, also designated H13, is a dual-filament halogen type operating at 12V with a 65W high beam filament and a 55W low beam filament, fitted with a P26t base. Its dual-filament design means a single bulb serves both beam functions, and it appears as the specified size for the Dodge Ram 1500 across the 2006-2008 model years for all headlamp configurations, as well as for 2009-2010 two-headlamp configurations.
• The 9007 bulb is also a dual-filament halogen type, rated at 12V with a 65W high beam filament and a 55W low beam filament, but it uses a PX29t base rather than the P26t base of the 9008. This base difference makes the two bulbs physically non-interchangeable despite their similar wattage ratings.
• The 9004 bulb is a dual-filament halogen type with a P29t base, operating at 12V with a 65W high beam filament and a 45W low beam filament. The lower 45W low beam output distinguishes it from the 9007 and 9008, which both use 55W low beam filaments.
• The H11 is a single-filament halogen bulb with a PGJ19-2 base, rated at 12V and 55W, standardized under the ECE regulation used in Europe and internationally, though it also carries US approval. Because it is single-filament, it serves only the low beam function and is paired with a separate high beam bulb in four-headlamp configurations.
• The 9005 is a single-filament halogen bulb with a P20d base, rated at 12V and 65W, dedicated solely to high beam use. It is specified exclusively for the high beam position in 2009-2010 four-headlamp configurations, where the low beam function is handled separately by the H11.
• The Ram 1500 with four-headlamp configurations in 2009-2010 uses a split-bulb arrangement: the 9005 for high beam and the H11 for low beam. Two-headlamp configurations for the same years use the 9008 for both functions within a single bulb.
• For the 1999-2001 model years, low beam fitment varies by headlamp configuration. Two-headlamp versions use the 9004, while four-headlamp versions use the 9007, reflecting a difference in base type and low beam wattage between the two configurations.
• All five bulb types in these specifications conform to either the ANSI standard, which governs the 9004, 9005, 9007, and 9008, or the ECE standard, which governs the H11. The differing base designs across these types are standardized to prevent cross-fitment between incompatible bulb families.