Will this bolt directly to my existing radiator core support?

Yes. This assembly uses factory mounting points — no drilling or welding needed. The shroud and motor mount where the original fan attached.

Do I need to disconnect the battery before swapping this in?

You should disconnect the negative battery terminal as a safety measure when working with any electrical component. Refer to your owner's manual for the full disconnect procedure before removal.

What if the fan doesn't spin after installation?

Check your electrical connections first — make sure the harness is fully seated and the battery is reconnected. If the fan still doesn't operate, test the connector voltage with a multimeter or have your cooling system diagnosed by a shop to rule out thermostat or sensor issues.