part 66120536 Testata piston Ø24 Interpump code 66120536 Details Interpump number66120536 DescriptionTestata piston Ø24 ItalianTESTATA PIST.D.24Qty per pump1 Fits these pumps Interpump 66 SS series 2 SSE2041SSU2050 Interpump 66 SW series 2 SWE2041SWU2050