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General EZ4040G – Pressure Washer Pump – Bare

Rated 5.00 out of 5 based on 2 customer ratings
(2 customer reviews)


Available for Purchase!

SKU: EZ4040G Categories: ,


General Pump EZ4040G – Pressure Washer Pump – Bare

General Pump / Interpump EZ4040G pressure washer pump 4000 PSI @ 4.0 GPM is a bare pump with no plumbing. Use your old plumbing parts and save money, OR if your not sure if your parts are OK, please order the EZ4040G-SUB that comes complete !

Standard SAE J609 gasoline mounting flange for up to 13 hp engines
Forged brass manifold with an exclusive lifetime warranty and 3:1 hydrostatic rating
Die-cast, anodized aluminum oil-bath crankcase
Innovative one-piece plunger design to eliminate water entering crankcase
Premium roller bearing
5% reduction in crankcase load compared to standard 4,000 PSI, 15 mm pumps
Unitized stainless steel inlet and discharge valves
Available in L left-handed versions

Maximum Volume 4 GPM
Max. Discharge Pressure 4000 PSI
Maximum Pump Speed 3400 RPM
Maximum Inlet Pressure 125 PSI
Plunger Bore .512 in. / 13 mm
Plunger Stroke .512 in. / 13 mm
Crankcase Oil Capacity 14 oz.
Maximum Fluid Temperature 165 degrees F
Inlet Port Thread 1/2 in.- 14 BSPP-F
Discharge Port Thread 3/8 in.- 19 BSPP-F
Shaft Diameter 1.0 in. / 25.4 mm
Weight 20 lbs.
Dimensions 8.8 in. x 9.7 in. x 6.5 in.

Additional information


Max. GPM: 3.5-4.0


General Pump


Max. PSI: 3801-4200

2 reviews for General EZ4040G – Pressure Washer Pump – Bare

  1. Rated 5 out of 5

    Ash Lee

    Worked great right out the box, easy to install, plenty of power to get the job done.

  2. Rated 5 out of 5

    John McClane

    Amazing pump, works great.

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Prop 65 Warning!

This product can expose you to chemicals which are known to the State of California to cause cancer.

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