PART NUMBER: 3522879
 Air conditioner flexible line suction line from  junction point to compressor  on Volvo 240 series  made from 1990 through 1993 sedans and station wagons. 
Pipe connects at the junction  point by the frame rail to the rigid line , and to the ac compressor . Number 7 on the diagram.  Replaces part numbers 3522879 and  3540655
This   is a MUST HAVE component  when repairing  R-134  gas filled  Air conditioning system of your Volvo 240 series