Hypro Pump D403 and D403GRGI

Medium Pressure Diaphragm Pump. Hypro D403 is found on Lesco spray rigs.
Free Shipping and VIP Next Day Shipping - Final price (no handling, no hidden fees, no tax).
Model D403GRGI includes a gearbox and pressure regulator to better suit your pumping and spraying needs.

Model D403GRGI includes a gearbox and pressure regulator to better suit your pumping and spraying needs.

  • Hypro D403 Pump
    USD $533.72
    • Buy 3 for USD $480.35 each and save 10%
  • Hypro D403 Pump - VIP Next Day Delivery
    USD $644.46
  • Hypro D403 Pump w/ Gearbox and Regulator
    USD $906.25
    • Buy 5 for USD $815.63 each and save 10%
  • Hypro D403 Pump w/ Gearbox and Regulator - VIP Next Day Delivery
    USD $1,036.77


THIS PUMP IS A STOCK ITEM AT RITTENHOUSE, 2-3 ground shipping to most locations. Express shipping available for pumps & parts!

Tired of thinking that you have found a great price on a Hypro D403 pump only to find that the shipping rate is outrageously inflated? We know feeling deceived is no fun, that's why we offer great prices on genuine Hypro pumps and even FREE GROUND SHIPPING in the continental U.S.

This medium pressure Hypro diaphragm pump is recommended for ground and low-level spraying of herbicides, pesticides. Low cost maintenance and almost wear-free operation make these pumps ideal for a wide variety of spraying jobs. Pressure and output are designed for optimum performance of medium to large sized sprayers. The D403 has 3 Diaphragms: 10.6 gpm; 580 psi. This pump is commonly found on Lesco spray rigs.

The 9910-D403 bare pump can be adapted to a male 6-splined shaft, a Female 6-splined shaft or a 1" shaft turning at 540 RPM using Hypro's shaft adapter kits. If you wish to couple the pump to a gas motor choose the 9910-D403GRGI, which comes complete with gearbox and regulator.

The Hypro D403 diaphragm pump is designed to be the most complete pump for the spraying and pumping of herbicides, pesticides, liquid fertilizers and hard-to-handle fluids.

This Hypro diaphragm pump offers a wide spectrum of flows and pressures for slurries and suspensions.

The oil bath design and premium-quality, synthetic diaphragms provide longer life and greater reliability. Low-cost maintenance and almost wear-free operation result from these diaphragms, as well as, a self-priming operation, and visual oil-level sight glass.

Another common use of the Hypro D403 pump is for pressure testing pipes and sewers. Hydrostatic test pump

This Hypro D403 diaphragm pump can handle fluids up to 140 degrees F and can be run dry. Easily adaptable to PTO, hydraulic or gas engine drives.

  • Max. flow: 10 gpm / 37.5 L/min
  • Max. pressure: 580 psi/ 40 BAR
  • Max. rated speed : 550 rpm for 9910-D403
  • Max. rated speed : 3600 rpm for 9910-D403GRGI
  • Max. fluid temperature: 140 degrees F
  • Port sizes: 1" inlet, two 1/2" hose barb outlets (on the regulator)
  • Shaft: 9910-D403 shaft is a three bolt flange.9910-D403GRGI has 3/4" hollow shaft for gas engine mount.
  • Diaphragms: 3, semi-hydraulic
  • Housing: anodized aluminum
  • Mounting base: included
  • Weight: 20.9 lbs.
  • The D403 is used on most Lesco sprayers.

If you would like to attach your Hypro D403 to the 6 spline male PTO shaft on the back of a tractor, add 9910-Kit1704 to your order (see Related Products). The kit includes all the hardware, a safety shield and female PTO coupler.

The D403GRGI is the pump used on the Cub Cadet 200 Gallon Compact Sprayer and Lesco Space Saver spray rigs.

9910-D403 9910-D403GRGI

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