part 66101651 Head ring Ø28 h.p. Interpump code 66101651 Details Interpump number66101651 DescriptionHead ring Ø28 h.p. ItalianANELLO DI TESTA D.28 HPQty per pump3 Fits these pumps Interpump 47 series 4 TS1044TS1050WS1036WS1040