Do these plug into the factory harness or do I need to rewire?

Factory harness compatibility not specified—verify connector type before installation. You may need an adapter or manual splice depending on your truck's original connector.

Will these headlights work with my truck's original dimmer and high-beam switch?

LED elements operate differently than incandescent bulbs. Test functionality after install to confirm switch operation. If flickering or dimming issues occur, a relay harness may be required.

What's the return window if these don't fit or work?

Check the shop's return policy before purchase. Most aftermarket headlights are final sale once installed, so test-fit and verify connector compatibility before committing to wiring.