Honda Odyssey Tail Light Bulb Size

Additional Notes

• The Honda Odyssey outer tail light uses two distinct bulb types across its model range: the 7443 for 1995-2013 model years and the 7440 for 2019-2024 model years.
• The 7443 is a dual-filament T20 wedge bulb rated at 12V and 21W/5W, meaning it serves two functions within a single housing, typically combining stop and tail light duties.
• The 7440 is a single-filament T20 wedge bulb rated at 12V and 21W. Although it shares the T20 wedge form factor with the 7443, it carries only one filament and is not a direct substitute for the 7443 in applications requiring dual-filament operation.
• The Honda Odyssey inner tail light uses the 168 bulb across all listed model years from 1999-2013, making it the most consistent fitment in these specifications.
• The 168 is a miniature T10 wedge bulb rated at 12V and 4.9W, placing it in the low-wattage range typical of indicator or courtesy lighting functions.
• The 194 is also a miniature T10 wedge bulb, rated at 12V and 3.78W. It is slightly lower in wattage than the 168, and while both share the T10 form factor, the wattage difference means they are not confirmed interchangeable without consulting fitment data.
• The 921 is a T15 wedge bulb rated at 12V and 16W, representing a mid-range wattage among the bulb types listed in these specifications.
• All five bulb types listed across these specifications conform to ANSI standards applicable in both the United States and Canada.
• The outer tail light position on the Odyssey shows the most variation in bulb fitment, with three different bulb sizes across the full model range, compared to the inner tail light position, which uses a single bulb size throughout its listed years.
• For the 2011-2013 outer tail light position, both the 7443 and the 921 are listed, indicating that more than one bulb size applies to that position within those model years.