Will this bolt in where my OEM condenser sat?

Yes — this condenser uses the factory mounting points. No drilling or frame modification needed.

Do I need to flush the refrigerant system before install?

A complete system flush is recommended when replacing a condenser. Consult your service manual for the proper evacuation and recharge procedure for your vehicle.

What fasteners or hoses come with this?

The condenser unit ships alone. You'll reuse your existing mounting hardware and refrigerant lines from the old condenser — inspect hoses for damage before reconnection.