Will this bolt up to my stock wiring harness?

Connector type not specified — verify your vehicle's wiring before ordering. Bring the old light to confirm fitment or contact your dealer parts department for the exact harness configuration.

Do I need any fasteners or brackets to install this?

Hardware needed not confirmed. Have a basic tool kit ready and test-fit the assembly first — you may need replacement bolts or gaskets depending on the condition of your existing mounting points.

Is the bulb socket already in place or do I need to transfer it from my old light?

Socket configuration not specified in the listing. Assume you'll need to pull the socket assembly from your original tail light and install it into this housing — this is standard on most replacement lights.