Will this bolt straight into the factory location?

Yes—this light mounts at the factory third brake light position with no drilling or bracket fabrication. Just unbolt the old unit and bolt this one in place.

Does the LED bulb come with this?

The assembly ships ready to install. Verify LED bulb compatibility with your specific vehicle before ordering if you have concerns about fitment.

Do I need to seal this where it mounts?

Check your vehicle's original installation—if the factory unit had weatherstripping or sealant, apply the same method here to prevent water intrusion at the mounting surface.