Which compressors are equivalent to the Harrison 490 A/C compressor? We're looking to find one in the junkyard, but no 490s around, 190s, 200s, and other ones but no 490s. Can anyone tell me which ones can replace each other?

Thanks!

 

No one?

 

do they all look the same? i wasn't aware of simular looking compressors having differen't model #'s.

 

Well they look the same, but I just want to get the low down on all of them, because I dont wanna get one and find out it doesn't fit.