Will this headlight work with my existing wiring harness?

Yes — this is a direct OE-style replacement, so your factory wiring connector and harness connect without modification. No rewiring needed.

Does this include the bulb?

Bulb is not included with this assembly. You'll transfer your existing bulb or source a replacement separately.

What if my headlight doesn't seal properly after install?

Check that the assembly seats fully into the mounting bracket — sometimes a slight rotation of the fixture improves the seal. If water still enters, test-fit with a small bead of clear silicone around the perimeter before final fastening.