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Pressure-Pro AR Pumps 3000 PSI 2.5 GPM Built In Unloader & Injector

Pressure-Pro AR Pump 3000 PSI 2.5 GPM with Built In Unloader & Injector for vertical gas engine mounted systems. Includes a built-in pressure control valve, downstream chemical injection system, EZ start valve and thermal relief valve.
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Pressure-Pro AR Pumps 3000 PSI 2.5 GPM with Built-In Unloader & Injector

This pump is for vertical gas engine driven units. This pump mounts directly on to the engine shaft by using a keyed hollow shaft connection system.

The mounting flange provides a convenient connection to most 3/4” diameter shaft vertical gas engines in 4 – 7 HP (reference the cc to HP chart) and fits most OEM carts.

The pump includes a built-in pressure control valve, downstream chemical injection system, EZ start valve and thermal relief valve.


  • 3-piston alternating volumetric pumps for use on cleaning units
  • Can be directly coupled to various types of motors
  • Different delivery connections available
  • Optional detergent suction system
  • Integral regulating valve
  • Pump body in die-cast aluminum alloy
  • Pistons driven by swash plate mechanism
  • Two bearing systems, to support the pump shaft and pistons
  • Pistons in hardened and tempered steel
  • Double gasket sealing system
  • Intake valves fitted above the pistons for greater efficiency


3000 PSI Max
2.5 GPM
3,400 RPM
3/4” Shaft (Fits Vertical Shaft Engines)
Oil Lubricated - Pre-filled
Built in Control & Chemical Injector
Thermal Relief Valve Included
Input: Female Garden Hose
Output: (MALE)Hose Connection is 22mm x 14mm

This pump will fit on many brands such as Honda, Powerstroke, Briggs, Karcher, Blackmax and more.

Some Briggs models (Craftsman, John Deere, Brute, Troy-bilt ETC..) Units made by Briggs Power Products are Back Mounted (turned 180º) 

Assembled in the USA

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