For the 2009 Nissan Pathfinder, both the low-beam and high-beam headlights use a 9007 bulb. This same dual-function fitment covers the primary headlight applications listed for this model year.
The fog-light listings include H11 LED and H16 LED options. Verify the bulb currently installed before ordering, since the supplied fitment data identifies both options rather than one universal fog-light size.
Other useful exterior replacements include 7444NA bulbs for the front turn signals and parking lights, 194NA for the front side markers, and 921 for the reverse lights. The brake and tail lights use 3157R, while the rear turn signals use 3156A. The center stop light is listed as LED.
For interior and plate lighting, the dome, map, and trunk lights use DE3175. The license-plate application is listed with either 2825 or 98, so check the existing bulb or socket before purchasing.