part 66121041 Testata pompa pistone Ø16 Interpump code 66121041 Details Interpump number66121041 DescriptionTestata pompa pistone Ø16 ItalianTESTATA POMPA PISTONE D.16Qty per pump1 Fits these pumps Interpump 66 series 4 T4018T5015W4015W4018