Air conditioning work is closed-loop work. A compressor replaced without flushing the circuit, or without replacing the receiver-drier or orifice tube, usually fails again within a season. Each listing notes what the part includes so you can tell whether you also need a drier, a seal kit or an orifice tube.
Refrigerant type matters: R-134a and R-1234yf systems use different oils, seals and service fittings and are not interchangeable. Confirm the system on your vehicle before ordering a compressor or a condenser.
Blower motor resistors and actuators are common failures behind "fan only works on high" and "air comes out of the wrong vent" complaints.