Do I need to recharge the AC system after installing this condenser?

Yes. Whenever you open the AC circuit, refrigerant escapes. You'll need to have the system evacuated, flushed, and recharged by someone with the proper recovery equipment — this isn't a DIY task.

What fasteners or brackets do I need to mount this?

Mounting hardware is not included with this condenser. You'll reuse the brackets, bolts, and clips from your original unit during swap-out. Inspect them for wear before reassembly.

Will this fit if my original condenser is damaged or leaking?

Physically, yes — it's a direct replacement. But if refrigerant has escaped into the system, debris or moisture may be circulating through the lines. Have a shop flush the entire circuit before installing the new condenser to avoid premature failure.