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General Pump - EZ4040 (EZ4040G / EZ4040G34) - Pressure Washer Pumps

General Pump - EZ4040 (EZ4040G / EZ4040G34) - Pressure Washer Pumps

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Pressure Washer Pumps & Parts - EZ4040 (EZ4040G)

FREE SHIPPING + NO TAX in USA (Excluding TX and CA)

General Pump’s EZ4040G Ready Made Pump: RMPEZ4040G

FEATURES - EZ4040 (EZ4040G)

  • Innovative one-piece plunger design
  • 5% reduction in crankcase load compared to standard 3,000 psi - 15 mm pumps
  • Superior plunger performance against thermal shock and cavitation due to new,unique bonding process
  • Standard SAE J609 gasoline mounting flange for up to 16 hp engines
  • Forged brass manifold with a 3:1 hydrostatic rating
  • Die-cast, anodized aluminum, oil-bath crankcase
  • Premium roller bearing
  • Unitized stainless steel inlet and discharge valves
  • Available in L left-handed versions
> General Pump EZ4040G34 Repair Kits & Parts
> General Pump EZ4040G34 Manufacturer Specs (.PDF format)


Maximum Volume 4.0 gpm
Max. Discharge Pressure 4000 psi
Maximum Pump Speed 3400 rpm
Maximum Inlet Pressure 125 psi
Maximum Inlet Vacuum Flooded
Bore .512 in / 13 mm
Stroke .512 in / 13 mm
Crankcase Oil Capacity 14.0 oz
Maximum Fluid Temperature 165°F
Inlet Port Thread 1/2-14 BSPP-F
Discharge Port Thread 3/8-19 BSPP-F
Hollow Shaft I.D. 1.0 in / 25.4 mm
Weight 20 lbs
Dimensions8.8 x 9.7 x 6.5 in


The recommended standard valves for this pump are:

Unloader: YU4050KDM

Pressure Relief Valve: 100723 or 100726

                                                Shaft Option *

The pump pictured above has a right-handed shaft. The left-handed model has the shaft on the left side.
Please choose your pump by clicking a box below:

Left-handed Shaft
Right-handed Shaft

Pressure Washer Authority is pleased to offer the General Pump - EZ4040 (EZ4040G / EZ4040G34) - Pressure Washer Pumps. We are working hard to become your number one source for pressure washers, pressure washer pumps, and General Pump pressure washer pumps. We are The Pressure Washer Authority featuring LOW PRICES! and FREE SHIPPING! on all of your pressure washer and high-pressure power cleaning needs.

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