The Chrysler Pacifica tail light requires bulb sizes 7443, 7440, 2458, and 3157 depending on the specific version of the vehicle. Data for the bulb sizes covers the range from 2004 to 2024.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Chrysler Pacifica inner tail light uses the 12961 bulb for model years 2017-2020, specifically on vehicles without projector-type headlamps. The 12961 is a Philips part number designating a T10 miniature wedge bulb with a W2.1x9.5d base, rated at 12V and 5W.
The outer tail light on the Chrysler Pacifica uses three distinct bulb types across its production span, reflecting changes in lighting design between earlier and later model years.
The 7443 is an ANSI-standard dual-filament T20 wedge bulb rated at 12V with a 21W main filament and a 5W secondary filament. On the Pacifica, it serves the outer tail light position for 2017-2019 models without projector-type headlamps, as well as the 2024 model year without that condition noted.
The 7440 is an ANSI-standard single-filament T20 wedge bulb rated at 12V and 21W. Although it shares the same T20 wedge form factor as the 7443, it carries only one filament, making the two bulbs non-interchangeable in applications that require dual-filament operation. The Pacifica outer tail light for 2023 uses the 7440.
The 3157 is an ANSI-standard dual-filament T25 wedge bulb rated at 12V with a 27W main filament and a 7W secondary filament. It is the outer tail light bulb for the Pacifica across model years 2004-2008.
The T25 body of the 3157 is physically larger than the T20 body shared by the 7443 and 7440, and the wattage ratings also differ, meaning these bulb families are not interchangeable with one another despite all using wedge-style bases.
The inner and outer tail light positions on the Pacifica use entirely different bulb types. The inner position calls for the low-wattage 12961 T10, while the outer position uses higher-wattage dual- or single-filament T20 or T25 bulbs depending on the model year.
For 2017-2019 Pacifica models, the "without projector-type headlamps" condition applies to both the inner and outer tail light positions, indicating that headlamp configuration is a relevant fitment variable for those years.