Honda-GX390 12HP-4GPM-4300PSI-General Pump HP Series Pump
By : Water Cannon

SKU : 11H91
  • Quick Specs
  • PSI: 4300
  • GPM: 4
Regular Price: $1,475.00
On Sale Now: $1,369.00
This pressure washer allows you to choose from four different models based on the jobs you have at hand. Standard on each model is the ever-popular Honda GX390 engine and choose between 3 powerful 4300 PSI pumps: The Cat 5CP Series pump, General HP Series pump or Annovi Reverberi RKA Series pump.

This Water Cannon Pressure Washer includes an Upgraded External Recirculation Plumbing Feature that cools the water while the trigger gun is closed. The extended service life Triplex Ceramic Plunger Pump holds up to commercial and professional daily use. Additionally this model includes an overheat safety valve that will open and close automatically to allow the recalculating higher temperature water to be released and allow cool water to replace it, helping to protect the wear parts. There is an optional Adjustable Pressure & EZ Start Feature available SKU 11234 available by calling 1-800-333-9274 and speaking with one of our industry trained sales team.
Don™t forget to consider a Hot Water Hot Box, to Make Your Current Washer's Water Hot. 

Give your pressure washer the boost it needs by adding a hot water hot box. This will allow you to use your equipment for an even wider variety of applications. Your machine will arrive professionally packaged, factory assembled and tested. Great built-in protections such as low oil shut-off and a thermo-sensor ensure the safe, secure operation of the unit and the longevity of the washer.

Pressure washer Safety Rule; always wear earprotection to cut noise and eye protection and or a face shield toprevent debris from flying or ricocheting into your eyes or face whichcould result in serious injury.  

• 4300 PSI Honda pressure washer
• Honda GX390 engine with 3 year warranty: Click here for complete details
• Available with your choice of Annovi Reverberi pump, Cat Pumps brand pump or General Pump brand pump with 5 year warranty (GP pictured)
Standard Features
• Revolutionary aircraft grade aluminum frame with dual handles (no welds to fail)
• Lifetime frame warranty
• 50 mesh stainless steel inlet filter
• Adjustable pressure throttle
• 10" over-sized pneumatic tires
• Dual padded shock absorbing feet
• 3/4" cold-rolled steel axle
• Thermo-sensor prevents overheating in bypass mode and protects pump from damage
Standard Accessories
• 50' Hose
• Trigger gun and wand
• Soap/chemical nozzle injector system
• 4 color-coded QC spray nozzles
• 1 color-coded QC chemical nozzle
Download Operator's Manual Here
View Honda Engine's Limited Warranty

Pressure Washer - Honda GX 390 - Portable V-Belt Drive - RK Series AR Triplex Plunger Pump - 4.0GPM - 4300PSI - 3+5+ Lifetime Manufacturer's Warranty - 50' Hose, Trigger Gun, Wand, Chemical Injector, & QC Nozzles - Assembled in USA
Honda GX Engines
• We begin with a 3 year engine warranty
• Including highly desirable and intelligent features:
• OHV - Over Head Valve Design First Pull Starting
• Automatic Decompression
• Low Tone muffler with heat shield
• Adjustable throttle
• CARB - EPA3 - Can be sold in all 50 States
• Low Vibration and great fuel economy
• Fuel tanks have an EPA approved fuel cap
• Downdraft style carburetor - no priming
• Nationwide Service Centers

Helpful tips to keep your pressure washer pump operating at peak performance

Warning California Proposition 65
Detectable amount of chemicals known to the State of California to cause cancer, birth defects or other reproductive harm may be found in pressure washing equipment, accessories and exhaust. For More Information Visit
Manufacturer: Water Cannon
SKU: 11H91
PSI: 4300
GPM: 4
Drive Type: V-Belt Drive
Powered By: Gasoline
Cold or Hot Water: Cold Water
Variant MPN: EB4042HG
Related Products
Customers Also Bought
Recently Viewed
Water Cannon ships via UPS with delivery to the lower 48 states of the United States. When you purchase any items from Water Cannon, we will email you a receipt with tracking information so you can track your shipment.

We are currently offering FREE SHIPPING and handling on PREPAID orders over $35.00.* This free shipping rate applies to prepaid orders only, paid via credit card, fax checks, etc. For orders placed by phone or online that are under $35.00, a shipping charge of $15.30 will be applied.

Click here for information on international shipping and our shipping policies.