Thanks for the information simoncpw, I have checked out the part required but as I am not a mechanical person I have aproblem the part section is showing 3 a/c compressors as shown below could you tell me which one I should be looking to purchase I do not understand what Rmfd is does that indicate a reconditioned unit or what I would appreciate any assistance in selecting the correct part.

1Air-conditioner compressor645069178660
1Rmfd air cond.compessor64529195899+core
1Rmfd air cond.compessor64529195899+core