Ram 3500 Headlight Bulb Size

Additional Notes

• The 9005 bulb is the most frequently specified high beam bulb across the Ram 3500, covering the 2013-2024 model years as well as the 4-headlamp configuration in 2011-2012. It is a single-filament halogen bulb operating at 12V and 65W, built to the ANSI standard used in the US and Canada, and fitted with a P20d base.
• The H11 is the most frequently specified low beam bulb across these specifications. It follows the ECE standard, though it also carries US approval. It uses a PGJ19-2 base and operates at 12V and 55W, making it lower in wattage than the 9005 used in the high beam position.
• The 9008 bulb is a dual-filament halogen unit, meaning a single bulb handles both high and low beam functions. It operates at 12V with separate wattage ratings of 65W for high beam and 55W for low beam, and it uses a P26t base. This differs structurally from all other bulbs in these specifications, which are single-filament types.
• The Ram 3500 (2011-2012) with a 2-headlamp configuration uses the 9008 for both high and low beam positions, while the 4-headlamp configuration in the same years splits the functions between a 9005 for high beam and an H11 for low beam. These two configurations are not interchangeable.
• The 9012 bulb appears in the low beam position for projector-type headlamp configurations in 2013-2015. It is classified as an enhanced halogen type under the ANSI standard, operates at 12V and 55W, and uses a PX22d base. Although its wattage matches the H11, its base type is different, and the two bulbs are not interchangeable.
• In 2016-2018, the low beam specification shifted from the 9012 to the 9005 for projector-type headlamp configurations. Both are ANSI-standard single-filament halogen bulbs, but they use different base types, P20d for the 9005 and PX22d for the 9012, which prevents cross-substitution.
• The 2019-2020 model years carry a headlamp-type condition in the specifications, with both high and low beam sizes listed only for halogen capsule headlamp configurations. The high beam uses a 9005 and the low beam uses an H11 under that condition.
• Projector-type and non-projector-type headlamp configurations in the 2013-2018 model years require different low beam bulbs. Non-projector configurations consistently use the H11 across all those years, while projector configurations use either the 9012 or the 9005 depending on the year.
• The P20d base on the 9005 and the PGJ19-2 base on the H11 are physically distinct, which means these two bulbs cannot be substituted for one another even though both are single-filament halogen types operating at 12V.
• The 9008 uses a P26t base, which is unique among the bulb types in these specifications. Its dual-filament design and distinct base make it incompatible with the single-filament sockets used in the 4-headlamp configurations of the same 2011-2012 model years.