Hypro D503 Repair Kit

Complete rebuild kits for the D503 Hypro Diaphragm Pump.

The repair kit for the Hypro D503 Pump includes all the parts in the above picture.

The repair kit for the Hypro D503 Pump includes all the parts in the above picture.

  • Repair Kit Hypro D503
    (D503REPAIRKIT)
    CAD $276.65
  • D503 Diaphragm Kit
    (9910-KIT1881)
    CAD $115.63
  • D503 Valve Kit
    (9910-KIT1987)
    CAD $304.83
  • O-Ring Kit for D503
    (9910-KIT1984)
    CAD $46.78

Details

Our complete pump rebuild kit for the Hypro D503 is more extensive than the standard repair kits. It is basically 2 Hypro kits (9910-KIT1881 and 9910-KIT1987) plus the sight glass o-ring. Our kit includes all the valves, as well as the o-rings and diaphragms.

Hypro D503 Repair Kit includes:

  • 3 x 9910-620085 Diaphragms
  • 6 x 9910-1409050 Valves
  • 1 x 9910-390180 O-ring
  • 6 x 9910-620030 O-rings
  • 6 x 9910-540361 O-rings
  • 6 x 9910-480440 O-rings

On the D503, when you are changing the valves, you will find 2 o-rings on the valve and 2 o-rings on the head assembly near the diaphragms.

If your Hypro D503 (or the D503GRGI which includes the gearbox and pressure regulator) has milky grey oil in the oil sight glass, you have mixed oil in the crankcase and likely a broken diaphragm. You must change your diaphragms before using your pump. Using a D503 with mixed oil can destroy your pump.

Hypro 9910-KIT1881 Diaphragm Repair Kit includes:

  • 3 x 9910-620085 Desmopan Diaphragms
  • 6 x 9910-480440 O-Rings

Hypro 9910-KIT1987 Valve Repair Kit includes:

  • 6 x 9910-1409050 Valves
  • 6 x 9910-620030 O-Rings
  • 6 x 9910-540361 O-Rings

Hypro 9910-KIT1984 O-Ring Repair Kit includes:

  • 6 x 9910-740290 O-Rings
  • 1 x 9910-1300270 O-Ring
  • 2 x 9910-640030 O-Rings
  • 3 x 9910-390180 O-Rings
  • 2 x 9910-390290 O-Rings
  • 6 x 9910-480440 O-Rings
  • 6 x 9910-620030 O-Rings
  • 6 x 9910-540361 O-Rings
  • 1 x 9910-650920 O-Ring

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