Description
The WSM Replacement Jet Pump Housing w/Wear Ring for Yamaha 650-800 (90-00) (144mm) is the right fix when your original pump housing is worn scored or out of spec. A damaged housing can cause poor seal life extra vibration and constant cavitation even with a fresh impeller. This replacement housing with wear ring gives you a clean starting point so the pump can seal properly and move water efficiently.
It is a strong choice for rebuilds after sand or rock ingestion and for skis that have lived in shallow water. Replacing the housing and wear ring together helps restore correct clearance and can bring back crisp acceleration.
Size: 144mm. Fitment: Yamaha 650-800 (90-00) (144mm). Verify your exact model and year before ordering.
- Replacement jet pump housing with wear ring for a complete refresh
- Helps correct excessive clearance that leads to cavitation and slip
- Great during impeller changes pump rebuilds and shaft service
- Supports smoother running and better efficiency under load
- Built for marine exposure heat cycling and constant vibration
- Quality controlled to WSM standards for fit and durability
Install notes: Inspect the impeller and driveshaft for damage. Check the pump shoe and ride plate surfaces. Assemble with clean hardware and follow the service manual. After install verify water tight sealing and confirm the pump spins freely without rub.
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