New SeaDoo Rotary Valve Gear 580 587 650 657 657X 717 720 782 787 800 420935735 OE SeaDoo Quality 14 Tooth Brass Rotary Valve Gear Replaces SeaDoo Part Number 420935735 Fits All Years & Models of SeaDoos With 580/587, 650/657, 717/720 & 787/800 Engines Ships Next Business Day or Sooner See Description For Details