Do I need to drain the cooling system before swapping this in?

Yes. Drain your coolant into a clean container before removing the old tank. Once the new tank is installed and secure, refill with fresh coolant to the proper level.

Will this mount at the factory location without drilling or brackets?

This tank mounts at factory points — no drilling or custom fabrication needed. Line up the mounting bosses and secure with existing fastener locations.

What hoses or clamps come with this tank?

Tank assembly only. Reuse your existing coolant hoses and clamps from the old tank, or replace them if they show wear or cracks.