Dodge Ram 2500 headlight bulbs utilize 9008, 9005, 9007, and H11 sizes depending on beam type and model year. The replacement chart covers 1994 to 2010 production years with corresponding bulb specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
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, housed in a P26t base. Its dual-filament design allows a single bulb to serve both high and low beam functions, and it appears as the most frequently specified bulb across the Dodge Ram 2500 headlight data, covering model years 2006-2010 in the two-headlamp configuration.
The 9004 bulb is a dual-filament halogen type rated at 12V with a 65W high beam filament and a 45W low beam filament, using a P29t base. It is specified for the Dodge Ram 2500 across model years 1994-2002 for both high and low beam positions, making it the bulb associated with the longest continuous span in these specifications.
The 9007 bulb is a dual-filament halogen type rated at 12V with a 65W high beam filament and a 55W low beam filament, using a PX29t base. It is specified for model years 2003-2005 and also appears in the four-headlamp low beam position for 1999-2001. Although 9007 and 9004 share similar wattage ratings, their base types differ and the two bulbs are not interchangeable.
In 2009-2010, the Dodge Ram 2500 was available with either a two-headlamp or a four-headlamp system, and the bulb requirements differ between these configurations. The two-headlamp system uses the dual-filament 9008 for both high and low beam, while the four-headlamp system uses the single-filament 9005 for high beam and the single-filament H11 for low beam, with each function handled by a dedicated bulb.
The 9005 is a single-filament halogen bulb rated at 12V and 65W, using a P20d base, and conforms to the ANSI standard applicable in the US and Canada. Because it carries only a high beam filament, it is not a substitute for dual-filament bulbs such as the 9008 or 9007, despite sharing the same 65W output on that filament.
The H11 is a single-filament halogen bulb rated at 12V and 55W, using a PGJ19-2 base. It conforms to the ECE standard used in Europe and worldwide but also carries US approval. In these specifications it is used exclusively for the low beam position in the four-headlamp configuration of the 2009-2010 Ram 2500, and its base type is incompatible with the ANSI-standard bases found on all other bulbs listed.
The base types across the listed bulbs are all distinct from one another: P26t for the 9008, P20d for the 9005, PX29t for the 9007, P29t for the 9004, and PGJ19-2 for the H11. Physical incompatibility between these bases means no cross-substitution is possible without an adapter, regardless of wattage similarity.
For model years 1999-2001, the low beam position of the four-headlamp configuration uses the 9007 rather than the 9004 that is specified for the two-headlamp configuration of the same years. This means two Ram 2500 vehicles from the same model year can require different low beam bulbs depending solely on which headlamp system is installed.