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Hypro D403 and Honda GX160 Engine Assembly

  • The ultimate pump-motor assembly used for numerous agricultural spraying applications.
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Product Description

DISCONTINUED PLEASE SEE AR403-5.5HP   The Hypro D403GRGI Diaphragm Pump, which comes assembled with a Pressure Regulator (9910-GR40) and Gearbox (9910-KIT1640), combines with a Honda GX160QH Gas Engine to provide you with the ultimate pump-motor combination for all of your agricultural and industrial spraying needs.

The gearbox is attached to the pump and allows for the connection of a gas engine. You just need to bolt down the engine and attach the hoses.

The Hypro D403GRGI and Honda Gas Engine coupling is used if you want an entirely new spray system or when replacing the pump assembly found on an existing spray rig. Pressure and output provide the best performance possible for medium to large sized sprayers, so it is very common to find this pump-motor combination on Lesco spray rigs, for example, the 200 Gallon Space Saver Sprayer.

The Hypro D403GRGI is considered one of the most efficient diaphragm pumps on the market today for pumping and spraying herbicides, pesticides, liquid fertilizers, and other hard-to-handle fluids.


  • Max. Flow: 10 GPM
  • Max. Pressure: 580 PSI
  • Max. Rated Speed: 3600 RPM (when gas engine mounted)
  • Max. Fluid Temperature: 140° F (60° C)
  • Horsepower: 4.8-5.5 HP (depending on altitude and environmental conditions)


  • Assembly includes Hypro D403 Diaphragm Pump, Gearbox (9910-KIT1640), Pressure Regulator (9910-GR40), and Honda GX160QH Gas Engine
  • Includes: 1 quart of engine oil
  • Port Sizes: 1" hose barb inlet, two 1/2" hose barb outlets
  • Shaft: 3/4" hollow shaft for gas engine mount
  • Housing: Anodized aluminum
  • Diaphragms: 3 semi-hydraulic diaphragms
  • Crankcase oil capacity: 13 ounces
  • Recoil starter
  • Total Weight: 89 lbs.
  • Self-priming pump can be run dry
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Product Reviews

  1. Water tank pump 5 Star Review

    Posted by on 27th Jun 2016

    Excellent pump and engine mix. All the GPM and pressure needed for agricultural spraying and misc, work on job sites. You get both.
    Great pump controls too. Excellent says it all.

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