Will these swap directly into my factory tail light mounts?

These are designed as direct replacements for your factory housings. You'll be removing the OEM tail lights and installing these in their place — same location, no modification needed.

Do I need to repaint or prep these before install?

These come ready to install. The black housing finish is already applied and sealed. You're not applying paint or primer — just mounting them as-is.

Are bulbs and wiring harnesses included?

This is the housing set only. You'll transfer your factory bulbs and harness connections over from the OEM lights you're removing — a straightforward swap.