PowerWash

General Pump EZ3040G Hollow Shaft Pressure Washer Pump

$754.97

SKU: EZ3040G

Product Information

This EZ Series 44 4.0 GPM 3000 PSI Pump is has an SAE J609 mounting flange and includes a forged brass manifold with an exclusive
lifetime warranty & 4:1 hydrostatic rating.

Product Details

Ideal for medium to heavy duty power washer and pressure washer general cleaning applications, the EZ Series 44 Triplex Plunger Pump with hollow shaft is flanged for direct coupling to gasoline engines (SAE J609B). The pump has a forged brass manifold with an exclusive lifetime warranty. The flange is for mounting on engines up to 13 HP.

Need a “Ready to Go” Pump Solution without the hassle of building it yourself? Call us at 1-800-433-2113 to ask about our Our PowerWash Exclusive “Ready to Go” Edition which provides you with the complete and installed package needed to begin cold-water Pressure Washing Applications right away!

Features include:

Solid ceramic plunger design

Forged brass manifold with an exclusive lifetime warranty and 4:1 hydrostatic rating

Standard SAE J609 Gasoline Mounting Flange For Up To 13 HP Engines

Die-cast, anodized aluminum, oil-bath crankcase

Premium roller bearing

Unitized stainless steel inlet and discharge valves

Available in “L” left-handed versions

Specifications:

Maximum Volume: 4.0 GPM

Maximum Discharge Pressure: 3000 PSI

Maximum Pump Speed: 3400 RPM

Maximum Inlet Pressure: 125 PSI

Maximum Inlet Vacuum: 3ft. Water (2.6 in Hg)

Plunger Bore: .591 in. / 15 mm

Plunger Stroke: .374 in./9.5 mm

Crankcase Oil Capacity: 14.0 oz.

Maximum Fluid Temperature: 165 F

Inlet Port Thread: 1/2” – 14 BSP-F

Discharge Port Thread: 3/8” – 19 BSP-F

Shaft Diameter: 1.0 in. / 25.4 mm

Weight: 19.1 lbs.

Dimensions: 8.8″ x 9.7″ x 6.5″

Shipping & Delivery

Fast nationwide shipping via UPS
Most orders arrive within 5–10 business days.
Direct-from-manufacturer items may take up to 14 business days
If a product will take longer than expected, a PowerWash.com account executive will contact you.
Backorder notifications
If an item becomes unavailable or delayed, our team will notify you immediately with options.
Freight delivery for large equipment
Oversized items ship by truck freight. Lift-gate service is available if needed.
Alaska & Hawaii shipping
Delivery to AK/HI may take up to 30 business days. (Some chemical products cannot ship to AK/HI.)
International shipping available
We ship to most countries worldwide. Call 1-800-433-2113 for rates.
Order minimum
Orders under $15 may incur a minimum order fee.
Track your order anytime
You can check your order status using the Orders & Returns page.

Returns & Warranty

30-Day Return Window (Unused Items)
Unused products in original packaging can be returned within 30 days of delivery.

Simple Return Process
Just contact our team to receive an RMA (Return Authorization) before sending anything back.

Restocking Fee
Returns may be subject to a 20% restocking fee.

Non-Returnable Items
Due to safety and usage factors, the following items cannot be returned:
– Pressure washers (covered under warranty only)
– Chemicals / hazmat products
– Custom or special-order equipment

Manufacturer Warranties Apply
Many products are backed by manufacturer warranties (pumps, engines, accessories, etc.).
Coverage varies by brand and product type.

Defective or Damaged Items
If something arrives damaged or defective, contact us immediately so we can make it right.

View full returns & warranty policy.

Support

Support & Questions

Talk to a real pressure washing expert
Our team helps contractors choose the right equipment, chemicals, and setup.

Need help before ordering?
We can help you confirm:
– Proper sizing (GPM, PSI, fittings)
– Product compatibility
– Best setup for your job

Support after purchase
We’re here to help with setup, usage, and troubleshooting.

Call or speak with our team
1-800-433-2113

Fast response from experienced staff
No call centers — you’ll speak with someone who understands the equipment.