Will I need new hoses or can I reuse the factory ones?

Reuse your existing Fiesta radiator hoses — this is a direct OEM replacement with the same connection points. Inspect hoses for cracks or brittleness before reinstalling; if they look questionable, swap them out while you're in there.

Do I have to drain the entire cooling system to swap this in?

Yes. Drop the drain plug, let it run completely empty, then install the new radiator, reconnect hoses, and refill with your vehicle's specified coolant. Bleed any air pockets per your service manual to avoid hot spots.

Can I install this myself with basic tools?

This swap is straightforward — disconnect hoses, unbolt the old unit, bolt in the new one, reconnect, refill coolant. If you've done basic maintenance before, you can handle it. No special tools required.