Depends on the year of your 4Runner. For my 2018 4Runner, I changed the halogen fogs to LEDs with part numbers 81210-48051 (right) and 81220-48051 (Left). Toyota uses those LED fogs for many years and models, include Lexus vehicles. They are direct, plug and play, to the factory halogen fog lights, but the right hand fog light is hard to get due due a bracket on that side.
You should be able to get any part number from your Toyota dealer, including port installed items.
GENUINE TOYOTA TUNDRA CT200h RX350 NX IS250/350 "LED" LEFT & RIGHT FOG LAMP SET | eBay
