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UST Water pumps

Official UST water pump parts

UST pumps move water where you need it and when you need it moved. Dependable motors drive rugged impellers in UST water pumps so these pumps rarely break down. Even through they're reliable, parts in UST water pumps can eventually wear out or break over time. When that happens, find the pump repair parts you need at Sears PartsDirect.

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UST WP255 pump
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Frequently replaced UST water pump parts

  • Contactor. The pump contactor applies current to the motor windings to run the motor.
  • Check valve seat. The pump check valve seat attaches to the pump housing and holds the check valve in place.
  • Foot valve. The pump foot valve attaches on the end of the intake hose and prevents water backflow from the pump.
  • Pressure regulator. The pressure regulator maintains the output water pressure.

Troubleshooting tips for fixing your UST shallow well pump when it won't pump water

  • Check for prime. Stop the pump and disconnect electrical power. Remove the priming plug and see if water is in the priming hole. Re-prime the pump if the priming hole is dry.
  • Check the foot valve or strainer for clogs.
  • Check the pump impeller for debris and clean the impeller housing if necessary.
  • Check water level in the well. You may need a deep well pump if water level is more than 25 feet below the surface.

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