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Articles / Standup / JS440/550 to 550SX Pump Conversion:

JS440/550 to 550SX Pump Conversion:

21 September 2018
Article JS440/550 to 550SX Pump Conversion:
Supported Hulls:
  • 1976 thru 1992 JS440
  • 1982 thru 1989 JS550
Parts you’ll need:
  • 550SX Complete Stator Vein Section (Pump shoe, hardware, and nozzle assembly can be interchanged between JS and SX pumps)
  • 550SX Impeller (Skat-Trak 15.5, 16 or Solas 13/18 work well)
  • 550SX Driveshaft and Coupler assembly
  • 550SX Coupler Cover assembly (Not necessary, but recommended)
  • Rhaas Products Driveshaft thru hull bearing conversion
  • Silicone Sealant
All original OEM hardware is compatible with the conversion.
Submitted by Chad Campbell


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