Does this come with wiring harness or connectors?

The assembly ships as a light unit only. Verify your vehicle's existing brake light connector compatibility before installation — factory connectors typically mate directly, but test fit first to confirm.

Will this work as a direct replacement without modification?

Yes. It mounts at the factory third brake light location with no drilling or cutting required. Remove the old unit and bolt the new one in place.

What's the warranty and return process if it doesn't work?

Contact ModSupply customer service with your order number and issue description — they'll walk you through next steps. Keep your receipt and original packaging for returns.