Honda Pilot Trunk Bulb Size

Additional Notes

• The Honda Pilot uses two distinct bulb types across its trunk bulb specifications: the 7440NA and the 12961, each belonging to different size families with incompatible bases.
• The 7440NA is a T20 single-filament wedge bulb rated at 12V and 21W. Its natural amber glass is a defining physical characteristic that distinguishes it from clear variants in the same T20 family.
• The 12961 is a T10 miniature wedge bulb with a W2.1x9.5d base, rated at 12V and 5W. It is referenced under a Philips part number rather than an ANSI designation.
• The T20 and T10 form factors are physically incompatible. The W2.1x9.5d base of the T10 (12961) cannot be substituted into a socket designed for the larger T20 wedge base of the 7440NA, and vice versa.
• The 7440NA carries an ANSI standard designation applicable in the United States and Canada, meaning it conforms to a standardized specification shared across multiple manufacturers rather than being proprietary to a single brand.
• The 2023-2024 Honda Pilot uses the 7440NA for the trunk bulb position, while the 2021 model uses the 12961, indicating a difference in socket type between these model year groups.
• The wattage difference between the two bulb types is significant: the 7440NA draws 21W compared to the 12961 at 5W, reflecting their different roles and socket electrical ratings rather than a simple substitution relationship.