Will these lights plug directly into my factory wiring harness?

They mount at factory points, but connector compatibility depends on your truck's year and existing harness. Test-fit and compare connectors before installation to confirm match with your wiring.

Do I need to drill holes or modify the truck bed to install these?

No drilling required — these use factory mounting points on the Tacoma bed. A basic socket set and a few minutes are all you need for a clean swap.

Are the LEDs replaceable if one burns out later?

LED element replacement depends on the internal design — not all LED tail lights allow individual bulb swaps. Check the assembly before committing to this style if future serviceability is a priority.