For the 2010 Subaru Outback, the supplied fitment data lists a 9005 bulb for the high beam. No low-beam bulb size is provided, so confirm the low-beam application from the existing bulb or vehicle documentation before ordering.
Fog-light fitment is listed as either H11 LED or H16 LED; check the lamp housing and connector to determine which option applies. The front turn signals use 7440, while the rear turn signals use amber 7440A. Brake lights use 7440R, and the center stop light is an integrated LED assembly.
Other listed applications include 921 reverse lights, DE3175 dome and map lights, and 912 for the trunk light. Several exterior and interior positions—including parking, side-marker, tail, courtesy, and license-plate lights—are listed with either 2825 or 98, so match the original bulb before replacement.