Water Pressure Washer-Honda GX390 12HP-AR-General Pump-4GPM-4200PSI
By : Water Cannon

SKU : 15H56
  • Quick Specs
  • Cold or Hot Water: Cold Water 
  • Drive Type: Direct Drive 
  • GPM: 4 
  • Powered By: Gasoline 
  • PSI: 4200 
  • Use Type: Contractor 
Price Per Item
2 to 5 $1,115.30
6 + $1,091.82
Click to Select:
  • w/ General Pump EZ Series Pump - 15H56 - $1,249.00 (Cyber Monday: $1,174.00)
  • w/ Annovi Reverberi RRV Series - 15H53 - $1,199.00 (Cyber Monday: $1,125.00)

Problems with your pump? Please click here to troubleshoot

These models include deluxe upgrades including:

• Hose and Gun Rack Holder
• Dual Clearview Inline Water Filter
• Engine Oil Drain Kit
• External Bypass System

Water Cannon’s Honda engine powered 4,200 PSI pressure washer was designed with ample power and an abundance of features to allow it to address a wide range of pressure washing applications. 

Available with an Annovi Reverberi brand pump, this powerful machine is one of the company’s bestsellers and is now offered competitively priced and additional discounts on orders of two or more. Providing power up to four gallons per minute at 4,200 pounds per square inch, the pressure washer boasts a Honda GX 390 engine, which is well known in the industry for its durability and reliability. The fact that the pressure washer (SKU 15H53) boasts an AR pump makes it even more appealing to industry professionals interested in investing in a long-lasting piece of equipment. 

The lifetime frame warranty and warranties on the engine and pump contribute to making the 4,200 PSI pressure washer an industry favorite. The aircraft grade frame on which the pressure washer rests has two handles for maximum maneuverability and no welds to ensure utmost strength and survivability. Two oversized tires and two shock-absorbing feet provide a stable platform for the pressure washer and also make it easy to transport around job sites and to offsite jobs. 

Also standard with the 4,200 PSI Honda pressure washer is a thermo-sensor that automatically prevents overheating in bypass mode and protects the pump from potential damage. An adjustable pressure throttle offers the operator complete control over water pressure in order to allow the user to address a vast variety of applications, including those that require a more gentle approach. Included in the price and packaged with each pressure washer upon shipping is a complete accessory kit with a 50-foot-long high pressure hose, gun and wand assembly, a soap and chemical nozzle injector system, four color coded spray nozzles and one color coded chemical nozzle. As a result, this washer is essentially ready to use as soon as it arrives.

Water Cannon has been delivering pressure washers like the 4,200 PSI Honda washer for over three decades. In addition to this exceptionally priced power washer, the company has many standard models and can also customize pressure washers to meet customers’ specific needs. 

To order the 4,200 PSI pressure washer, take advantage of bulk discount pricing or simply speak to a professional regarding professional grade power washing equipment, simply call the company’s knowledgeable pressure washer specialists at 1-800-333-WASH (9274). To learn more about the company and its products and to make a purchase, you can also visit Water Cannon’s website,, where it has numerous pressure washer models and the industry’s most comprehensive and complete line of replacement parts.

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 Pumpholds up to commercial and professional daily use. Additionally this model includes an overheat safety valve that will open and closeautomatically to allow the recalculating higher temperature water to be released and allow cool water to replace it, helping to protect the wearparts. There is an optional Adjustable Pressure & EZ Start Feature available SKU 11234 available by calling 1-800-333-9274 and speakingwith one of our industry trained sales team.

• 4.0 GPM at 4200 PSI pressure washer
• Annovi Reverberi RRV Series pump or General Pump EZ Series pump
• Honda GX390 engine

Standard Features
• Lifetime frame warranty
• Revolutionary aircraft grade aluminum frame with dual handles (no welds to fail)
• Thermo-sensor to prevent overheating in bypass mode and protect the pump from damage
• 50 mesh stainless steel inlet filter
• 10-inch over-sized pneumatic tires
• Dual padded shock-absorbing feet
• Adjustable pressure throttle

Standard Accessories
• 50-foot-long high pressure hose with quick-twist connects (additional hose available below as a Related Product)
• Gun/wand assembly with quick-twist connects
• Soap/chemical nozzle injector system
• 4 color coded quick connect spray nozzles
• 1 color coded quick connect chemical nozzle

Download Operator's Manual Here

View Honda Engine's Limited Warranty

Pressure Washer - Honda GX 390, Oil Drain - Portable, Deluxe Features Include, Gun & Hose Rack Holder, Dual Clearview Filtration - EZ Series General Triplex Plunger Pump - 4.0GPM - 4200PSI - 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

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 $39.00.* 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 $39.00, a shipping charge of $15.30 will be applied.

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