Very unlike Subaru to have such a limited part: 2002 Subaru Impreza TS - AC Compressor 2002-2003 Only is what the yards and Car-part.com are listing.

Subaru Parts shows a little more of a year range 2002 - 2007 but it's hard to tell in the yards.

Looking for a good AC Compressor.

Thanks,

Larry

2003-07 impreza should be a safe bet, but other models are the same in the era should work too.  It's been a while, I forgot which year compressor I swapped in to replace the 2002 impreza wrx.  The electrical connector was different.  My 03 had a 1 pin connector.  It's 12v to activate the clutch.  Cut the connector from the old clutch and put it on the newer unit.  Been working fine since 2015

 

 

Replace the compressor and evaporator coil with good used from Colorado.  New Condenser.  The old condenser was restricted just blowing through it.

Serviced today and it's working great!