Do I need to evacuate the refrigerant before swapping this in?

Yes. The AC system must be recovered by a certified technician before disconnecting the old condenser. Refrigerant cannot be vented legally, and the new unit arrives dry. Have the system evacuated, install the condenser, then have it recharged by a shop with proper equipment.

Will this condenser come with new O-rings and seals?

The condenser assembly itself is complete, but new seals at connection points are standard practice during install. Grab a small AC seal kit from your parts supplier — they're inexpensive and prevent leaks where hoses reconnect.

What tools do I need to pull the old one and bolt this in?

Basic hand tools—socket set, wrenches, and hose clamps. You'll also need an AC system recovery machine (usually handled by a shop) and refrigerant charge capability. If you're not equipped for the refrigerant side, have a technician handle the full job or at least the evacuation and recharge.