part 66040409 Piston Ø24 x 54 Interpump code 66040409 Details Interpump number66040409 DescriptionPiston Ø24 x 54 ItalianPISTONE D.24X54Qty per pump3 Fits these pumps Interpump 66 SS series 2 SSE2041SSU2050 Interpump 66 SW series 2 SWE2041SWU2050 Interpump 66 VHT series 1 VHT6646 Interpump 66 series 2 T1750W2141