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Hypro D403GRGI Diaphragm Pump - 9910-D403GRGI

  • Includes a Gearbox (9910-KIT1640) and Pressure Regulator (9910-GR40).
  • The most complete diaphragm pump used for pumping herbicides, pesticides, liquid fertilizers, and more.
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Product Description

DISCONTINUED, PLEASE SEE AR403-GR3/4-GCI    The Hypro D403GRGI (9910-D403GRGI) is a D403 Diaphragm Pump that is attached to a Pressure Regulator (9910-GR40) and Gearbox (9910-KIT1640) ready to mount on a gas engine, providing you with an entirely new pumping system.

This medium pressure, 3-diaphragm pump is most suitable for pumping and spraying a range of common agricultural chemicals such as herbicides, pesticides, liquid fertilizers, and other hard-to-handle fluids.

The pump has premium quality synthetic diaphragms that ensure longer life and greater reliability in the field, as it is compatible with most corrosive, harsh, and general use chemicals that could damage an ordinary pump.

The Hypro D403GRGI Diaphragm Pump is commonly found on Lesco spray rigs and Cub Cadet 200 Gallon Compact Sprayers. It also serves as a hydrostatic test pump for pressure testing pipes and sewers.


  • Max. Flow: 10 GPM
  • Max. Pressure: 580 PSI
  • Max. Rated Speed: 3600 RPM
  • Max. Fluid Temperature: 140° F (60° C)


  • Assembled with a Pressure Regulator (9910-GR40) and Gearbox (9910-KIT1640) for gas engine mount
  • Port Sizes: 1" hose barb inlet, two 1/2" hose barb outlets
  • Shaft: 3/4" hollow shaft for gas engine mount
  • Pump Shaft Rotation: CW and CCW (bi-rotational)
  • Diaphragms: 3 semi-hydraulic diaphragms
  • Housing: anodized aluminum
  • Crankcase oil capacity: 13 ounces
  • Weight: 32 lbs.
  • Self-priming pump can be run dry
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